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Commit 724bdd09 authored by Linus Torvalds's avatar Linus Torvalds
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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband 

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  IB/ehca: Reject dynamic memory add/remove when ehca adapter is present
  IB/ehca: Fix reported max number of QPs and CQs in systems with >1 adapter
  IPoIB: Set netdev offload features properly for child (VLAN) interfaces
  IPoIB: Clean up ethtool support
  mlx4_core: Add Ethernet PCI device IDs
  mlx4_en: Add driver for Mellanox ConnectX 10GbE NIC
  mlx4_core: Multiple port type support
  mlx4_core: Ethernet MAC/VLAN management
  mlx4_core: Get ethernet MTU and default address from firmware
  mlx4_core: Support multiple pre-reserved QP regions
  Update NetEffect maintainer emails to Intel emails
  RDMA/cxgb3: Remove cmid reference on tid allocation failures
  IB/mad: Use krealloc() to resize snoop table
  IPoIB: Always initialize poll_timer to avoid crash on unload
  IB/ehca: Don't allow creating UC QP with SRQ
  mlx4_core: Add QP range reservation support
  RDMA/ucma: Test ucma_alloc_multicast() return against NULL, not with IS_ERR()
parents dc8dcad8 56f2fdaa
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MAINTAINERS
View file @ 724bdd09
......@@ -2928,9 +2928,9 @@ S: Maintained
NETEFFECT IWARP RNIC DRIVER (IW_NES)
P: Faisal Latif
M: flatif@neteffect.com
M: faisal.latif@intel.com
P: Chien Tung
M: ctung@neteffect.com
M: chien.tin.tung@intel.com
L: general@lists.openfabrics.org
W: http://www.neteffect.com
S: Supported
......
drivers/infiniband/core/mad.c
View file @ 724bdd09
......@@ -406,19 +406,15 @@ static int register_snoop_agent(struct ib_mad_qp_info *qp_info,
if (i == qp_info->snoop_table_size) {
/* Grow table. */
new_snoop_table = kmalloc(sizeof mad_snoop_priv *
qp_info->snoop_table_size + 1,
GFP_ATOMIC);
new_snoop_table = krealloc(qp_info->snoop_table,
sizeof mad_snoop_priv *
(qp_info->snoop_table_size + 1),
GFP_ATOMIC);
if (!new_snoop_table) {
i = -ENOMEM;
goto out;
}
if (qp_info->snoop_table) {
memcpy(new_snoop_table, qp_info->snoop_table,
sizeof mad_snoop_priv *
qp_info->snoop_table_size);
kfree(qp_info->snoop_table);
}
qp_info->snoop_table = new_snoop_table;
qp_info->snoop_table_size++;
}
......
drivers/infiniband/core/ucma.c
View file @ 724bdd09
......@@ -904,8 +904,8 @@ static ssize_t ucma_join_multicast(struct ucma_file *file,
mutex_lock(&file->mut);
mc = ucma_alloc_multicast(ctx);
if (IS_ERR(mc)) {
ret = PTR_ERR(mc);
if (!mc) {
ret = -ENOMEM;
goto err1;
}
......
drivers/infiniband/hw/cxgb3/iwch_cm.c
View file @ 724bdd09
......@@ -1942,6 +1942,7 @@ int iwch_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
fail3:
cxgb3_free_atid(ep->com.tdev, ep->atid);
fail2:
cm_id->rem_ref(cm_id);
put_ep(&ep->com);
out:
return err;
......
drivers/infiniband/hw/ehca/ehca_classes.h
View file @ 724bdd09
......@@ -128,6 +128,8 @@ struct ehca_shca {
/* MR pgsize: bit 0-3 means 4K, 64K, 1M, 16M respectively */
u32 hca_cap_mr_pgsize;
int max_mtu;
int max_num_qps;
int max_num_cqs;
atomic_t num_cqs;
atomic_t num_qps;
};
......
drivers/infiniband/hw/ehca/ehca_cq.c
View file @ 724bdd09
......@@ -132,9 +132,9 @@ struct ib_cq *ehca_create_cq(struct ib_device *device, int cqe, int comp_vector,
if (cqe >= 0xFFFFFFFF - 64 - additional_cqe)
return ERR_PTR(-EINVAL);
if (!atomic_add_unless(&shca->num_cqs, 1, ehca_max_cq)) {
if (!atomic_add_unless(&shca->num_cqs, 1, shca->max_num_cqs)) {
ehca_err(device, "Unable to create CQ, max number of %i "
"CQs reached.", ehca_max_cq);
"CQs reached.", shca->max_num_cqs);
ehca_err(device, "To increase the maximum number of CQs "
"use the number_of_cqs module parameter.\n");
return ERR_PTR(-ENOSPC);
......
drivers/infiniband/hw/ehca/ehca_main.c
View file @ 724bdd09
......@@ -44,6 +44,8 @@
#include <linux/slab.h>
#endif
#include <linux/notifier.h>
#include <linux/memory.h>
#include "ehca_classes.h"
#include "ehca_iverbs.h"
#include "ehca_mrmw.h"
......@@ -366,22 +368,23 @@ static int ehca_sense_attributes(struct ehca_shca *shca)
shca->hca_cap_mr_pgsize |= pgsize_map[i + 1];
/* Set maximum number of CQs and QPs to calculate EQ size */
if (ehca_max_qp == -1)
ehca_max_qp = min_t(int, rblock->max_qp, EHCA_MAX_NUM_QUEUES);
else if (ehca_max_qp < 1 || ehca_max_qp > rblock->max_qp) {
ehca_gen_err("Requested number of QPs is out of range (1 - %i) "
"specified by HW", rblock->max_qp);
ret = -EINVAL;
goto sense_attributes1;
if (shca->max_num_qps == -1)
shca->max_num_qps = min_t(int, rblock->max_qp,
EHCA_MAX_NUM_QUEUES);
else if (shca->max_num_qps < 1 || shca->max_num_qps > rblock->max_qp) {
ehca_gen_warn("The requested number of QPs is out of range "
"(1 - %i) specified by HW. Value is set to %i",
rblock->max_qp, rblock->max_qp);
shca->max_num_qps = rblock->max_qp;
}
if (ehca_max_cq == -1)
ehca_max_cq = min_t(int, rblock->max_cq, EHCA_MAX_NUM_QUEUES);
else if (ehca_max_cq < 1 || ehca_max_cq > rblock->max_cq) {
ehca_gen_err("Requested number of CQs is out of range (1 - %i) "
"specified by HW", rblock->max_cq);
ret = -EINVAL;
goto sense_attributes1;
if (shca->max_num_cqs == -1)
shca->max_num_cqs = min_t(int, rblock->max_cq,
EHCA_MAX_NUM_QUEUES);
else if (shca->max_num_cqs < 1 || shca->max_num_cqs > rblock->max_cq) {
ehca_gen_warn("The requested number of CQs is out of range "
"(1 - %i) specified by HW. Value is set to %i",
rblock->max_cq, rblock->max_cq);
}
/* query max MTU from first port -- it's the same for all ports */
......@@ -733,9 +736,13 @@ static int __devinit ehca_probe(struct of_device *dev,
ehca_gen_err("Cannot allocate shca memory.");
return -ENOMEM;
}
mutex_init(&shca->modify_mutex);
atomic_set(&shca->num_cqs, 0);
atomic_set(&shca->num_qps, 0);
shca->max_num_qps = ehca_max_qp;
shca->max_num_cqs = ehca_max_cq;
for (i = 0; i < ARRAY_SIZE(shca->sport); i++)
spin_lock_init(&shca->sport[i].mod_sqp_lock);
......@@ -755,7 +762,7 @@ static int __devinit ehca_probe(struct of_device *dev,
goto probe1;
}
eq_size = 2 * ehca_max_cq + 4 * ehca_max_qp;
eq_size = 2 * shca->max_num_cqs + 4 * shca->max_num_qps;
/* create event queues */
ret = ehca_create_eq(shca, &shca->eq, EHCA_EQ, eq_size);
if (ret) {
......@@ -964,6 +971,41 @@ void ehca_poll_eqs(unsigned long data)
spin_unlock(&shca_list_lock);
}
static int ehca_mem_notifier(struct notifier_block *nb,
unsigned long action, void *data)
{
static unsigned long ehca_dmem_warn_time;
switch (action) {
case MEM_CANCEL_OFFLINE:
case MEM_CANCEL_ONLINE:
case MEM_ONLINE:
case MEM_OFFLINE:
return NOTIFY_OK;
case MEM_GOING_ONLINE:
case MEM_GOING_OFFLINE:
/* only ok if no hca is attached to the lpar */
spin_lock(&shca_list_lock);
if (list_empty(&shca_list)) {
spin_unlock(&shca_list_lock);
return NOTIFY_OK;
} else {
spin_unlock(&shca_list_lock);
if (printk_timed_ratelimit(&ehca_dmem_warn_time,
30 * 1000))
ehca_gen_err("DMEM operations are not allowed"
"as long as an ehca adapter is"
"attached to the LPAR");
return NOTIFY_BAD;
}
}
return NOTIFY_OK;
}
static struct notifier_block ehca_mem_nb = {
.notifier_call = ehca_mem_notifier,
};
static int __init ehca_module_init(void)
{
int ret;
......@@ -991,6 +1033,12 @@ static int __init ehca_module_init(void)
goto module_init2;
}
ret = register_memory_notifier(&ehca_mem_nb);
if (ret) {
ehca_gen_err("Failed registering memory add/remove notifier");
goto module_init3;
}
if (ehca_poll_all_eqs != 1) {
ehca_gen_err("WARNING!!!");
ehca_gen_err("It is possible to lose interrupts.");
......@@ -1003,6 +1051,9 @@ static int __init ehca_module_init(void)
return 0;
module_init3:
ibmebus_unregister_driver(&ehca_driver);
module_init2:
ehca_destroy_slab_caches();
......@@ -1018,6 +1069,8 @@ static void __exit ehca_module_exit(void)
ibmebus_unregister_driver(&ehca_driver);
unregister_memory_notifier(&ehca_mem_nb);
ehca_destroy_slab_caches();
ehca_destroy_comp_pool();
......
drivers/infiniband/hw/ehca/ehca_qp.c
View file @ 724bdd09
......@@ -465,9 +465,9 @@ static struct ehca_qp *internal_create_qp(
u32 swqe_size = 0, rwqe_size = 0, ib_qp_num;
unsigned long flags;
if (!atomic_add_unless(&shca->num_qps, 1, ehca_max_qp)) {
if (!atomic_add_unless(&shca->num_qps, 1, shca->max_num_qps)) {
ehca_err(pd->device, "Unable to create QP, max number of %i "
"QPs reached.", ehca_max_qp);
"QPs reached.", shca->max_num_qps);
ehca_err(pd->device, "To increase the maximum number of QPs "
"use the number_of_qps module parameter.\n");
return ERR_PTR(-ENOSPC);
......@@ -502,6 +502,12 @@ static struct ehca_qp *internal_create_qp(
if (init_attr->srq) {
my_srq = container_of(init_attr->srq, struct ehca_qp, ib_srq);
if (qp_type == IB_QPT_UC) {
ehca_err(pd->device, "UC with SRQ not supported");
atomic_dec(&shca->num_qps);
return ERR_PTR(-EINVAL);
}
has_srq = 1;
parms.ext_type = EQPT_SRQBASE;
parms.srq_qpn = my_srq->real_qp_num;
......
drivers/infiniband/hw/mlx4/mad.c
View file @ 724bdd09
......@@ -298,7 +298,7 @@ int mlx4_ib_mad_init(struct mlx4_ib_dev *dev)
int p, q;
int ret;
for (p = 0; p < dev->dev->caps.num_ports; ++p)
for (p = 0; p < dev->num_ports; ++p)
for (q = 0; q <= 1; ++q) {
agent = ib_register_mad_agent(&dev->ib_dev, p + 1,
q ? IB_QPT_GSI : IB_QPT_SMI,
......@@ -314,7 +314,7 @@ int mlx4_ib_mad_init(struct mlx4_ib_dev *dev)
return 0;
err:
for (p = 0; p < dev->dev->caps.num_ports; ++p)
for (p = 0; p < dev->num_ports; ++p)
for (q = 0; q <= 1; ++q)
if (dev->send_agent[p][q])
ib_unregister_mad_agent(dev->send_agent[p][q]);
......@@ -327,7 +327,7 @@ void mlx4_ib_mad_cleanup(struct mlx4_ib_dev *dev)
struct ib_mad_agent *agent;
int p, q;
for (p = 0; p < dev->dev->caps.num_ports; ++p) {
for (p = 0; p < dev->num_ports; ++p) {
for (q = 0; q <= 1; ++q) {
agent = dev->send_agent[p][q];
dev->send_agent[p][q] = NULL;
......
drivers/infiniband/hw/mlx4/main.c
View file @ 724bdd09
......@@ -574,7 +574,10 @@ static void *mlx4_ib_add(struct mlx4_dev *dev)
ibdev->ib_dev.owner = THIS_MODULE;
ibdev->ib_dev.node_type = RDMA_NODE_IB_CA;
ibdev->ib_dev.local_dma_lkey = dev->caps.reserved_lkey;
ibdev->ib_dev.phys_port_cnt = dev->caps.num_ports;
ibdev->num_ports = 0;
mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB)
ibdev->num_ports++;
ibdev->ib_dev.phys_port_cnt = ibdev->num_ports;
ibdev->ib_dev.num_comp_vectors = 1;
ibdev->ib_dev.dma_device = &dev->pdev->dev;
......@@ -691,7 +694,7 @@ static void mlx4_ib_remove(struct mlx4_dev *dev, void *ibdev_ptr)
struct mlx4_ib_dev *ibdev = ibdev_ptr;
int p;
for (p = 1; p <= dev->caps.num_ports; ++p)
for (p = 1; p <= ibdev->num_ports; ++p)
mlx4_CLOSE_PORT(dev, p);
mlx4_ib_mad_cleanup(ibdev);
......@@ -706,6 +709,10 @@ static void mlx4_ib_event(struct mlx4_dev *dev, void *ibdev_ptr,
enum mlx4_dev_event event, int port)
{
struct ib_event ibev;
struct mlx4_ib_dev *ibdev = to_mdev((struct ib_device *) ibdev_ptr);
if (port > ibdev->num_ports)
return;
switch (event) {
case MLX4_DEV_EVENT_PORT_UP:
......
drivers/infiniband/hw/mlx4/mlx4_ib.h
View file @ 724bdd09
......@@ -162,6 +162,7 @@ struct mlx4_ib_ah {
struct mlx4_ib_dev {
struct ib_device ib_dev;
struct mlx4_dev *dev;
int num_ports;
void __iomem *uar_map;
struct mlx4_uar priv_uar;
......
drivers/infiniband/hw/mlx4/qp.c
View file @ 724bdd09
......@@ -451,6 +451,7 @@ static int create_qp_common(struct mlx4_ib_dev *dev, struct ib_pd *pd,
struct ib_qp_init_attr *init_attr,
struct ib_udata *udata, int sqpn, struct mlx4_ib_qp *qp)
{
int qpn;
int err;
mutex_init(&qp->mutex);
......@@ -545,9 +546,17 @@ static int create_qp_common(struct mlx4_ib_dev *dev, struct ib_pd *pd,
}
}
err = mlx4_qp_alloc(dev->dev, sqpn, &qp->mqp);
if (sqpn) {
qpn = sqpn;
} else {
err = mlx4_qp_reserve_range(dev->dev, 1, 1, &qpn);
if (err)
goto err_wrid;
}
err = mlx4_qp_alloc(dev->dev, qpn, &qp->mqp);
if (err)
goto err_wrid;
goto err_qpn;
/*
* Hardware wants QPN written in big-endian order (after
......@@ -560,6 +569,10 @@ static int create_qp_common(struct mlx4_ib_dev *dev, struct ib_pd *pd,
return 0;
err_qpn:
if (!sqpn)
mlx4_qp_release_range(dev->dev, qpn, 1);
err_wrid:
if (pd->uobject) {
if (!init_attr->srq)
......@@ -655,6 +668,10 @@ static void destroy_qp_common(struct mlx4_ib_dev *dev, struct mlx4_ib_qp *qp,
mlx4_ib_unlock_cqs(send_cq, recv_cq);
mlx4_qp_free(dev->dev, &qp->mqp);
if (!is_sqp(dev, qp))
mlx4_qp_release_range(dev->dev, qp->mqp.qpn, 1);
mlx4_mtt_cleanup(dev->dev, &qp->mtt);
if (is_user) {
......
drivers/infiniband/ulp/ipoib/ipoib.h
View file @ 724bdd09
......@@ -507,6 +507,7 @@ int ipoib_pkey_dev_delay_open(struct net_device *dev);
void ipoib_drain_cq(struct net_device *dev);
void ipoib_set_ethtool_ops(struct net_device *dev);
int ipoib_set_dev_features(struct ipoib_dev_priv *priv, struct ib_device *hca);
#ifdef CONFIG_INFINIBAND_IPOIB_CM
......
drivers/infiniband/ulp/ipoib/ipoib_ethtool.c
View file @ 724bdd09
......@@ -42,6 +42,13 @@ static void ipoib_get_drvinfo(struct net_device *netdev,
strncpy(drvinfo->driver, "ipoib", sizeof(drvinfo->driver) - 1);
}
static u32 ipoib_get_rx_csum(struct net_device *dev)
{
struct ipoib_dev_priv *priv = netdev_priv(dev);
return test_bit(IPOIB_FLAG_CSUM, &priv->flags) &&
!test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
}
static int ipoib_get_coalesce(struct net_device *dev,
struct ethtool_coalesce *coal)
{
......@@ -129,7 +136,7 @@ static void ipoib_get_ethtool_stats(struct net_device *dev,
static const struct ethtool_ops ipoib_ethtool_ops = {
.get_drvinfo = ipoib_get_drvinfo,
.get_tso = ethtool_op_get_tso,
.get_rx_csum = ipoib_get_rx_csum,
.get_coalesce = ipoib_get_coalesce,
.set_coalesce = ipoib_set_coalesce,
.get_flags = ethtool_op_get_flags,
......
drivers/infiniband/ulp/ipoib/ipoib_ib.c
View file @ 724bdd09
......@@ -685,10 +685,6 @@ int ipoib_ib_dev_open(struct net_device *dev)
queue_delayed_work(ipoib_workqueue, &priv->ah_reap_task,
round_jiffies_relative(HZ));
init_timer(&priv->poll_timer);
priv->poll_timer.function = ipoib_ib_tx_timer_func;
priv->poll_timer.data = (unsigned long)dev;
set_bit(IPOIB_FLAG_INITIALIZED, &priv->flags);
return 0;
......@@ -906,6 +902,9 @@ int ipoib_ib_dev_init(struct net_device *dev, struct ib_device *ca, int port)
return -ENODEV;
}
setup_timer(&priv->poll_timer, ipoib_ib_tx_timer_func,
(unsigned long) dev);
if (dev->flags & IFF_UP) {
if (ipoib_ib_dev_open(dev)) {
ipoib_transport_dev_cleanup(dev);
......
drivers/infiniband/ulp/ipoib/ipoib_main.c
View file @ 724bdd09
......@@ -1173,11 +1173,48 @@ int ipoib_add_pkey_attr(struct net_device *dev)
return device_create_file(&dev->dev, &dev_attr_pkey);
}
int ipoib_set_dev_features(struct ipoib_dev_priv *priv, struct ib_device *hca)
{
struct ib_device_attr *device_attr;
int result = -ENOMEM;
device_attr = kmalloc(sizeof *device_attr, GFP_KERNEL);
if (!device_attr) {
printk(KERN_WARNING "%s: allocation of %zu bytes failed\n",
hca->name, sizeof *device_attr);
return result;
}
result = ib_query_device(hca, device_attr);
if (result) {
printk(KERN_WARNING "%s: ib_query_device failed (ret = %d)\n",
hca->name, result);
kfree(device_attr);
return result;
}
priv->hca_caps = device_attr->device_cap_flags;
kfree(device_attr);
if (priv->hca_caps & IB_DEVICE_UD_IP_CSUM) {
set_bit(IPOIB_FLAG_CSUM, &priv->flags);
priv->dev->features |= NETIF_F_SG | NETIF_F_IP_CSUM;
}
if (lro)
priv->dev->features |= NETIF_F_LRO;
if (priv->dev->features & NETIF_F_SG && priv->hca_caps & IB_DEVICE_UD_TSO)
priv->dev->features |= NETIF_F_TSO;
return 0;
}
static struct net_device *ipoib_add_port(const char *format,
struct ib_device *hca, u8 port)
{
struct ipoib_dev_priv *priv;
struct ib_device_attr *device_attr;
struct ib_port_attr attr;
int result = -ENOMEM;
......@@ -1206,31 +1243,8 @@ static struct net_device *ipoib_add_port(const char *format,
goto device_init_failed;
}
device_attr = kmalloc(sizeof *device_attr, GFP_KERNEL);
if (!device_attr) {
printk(KERN_WARNING "%s: allocation of %zu bytes failed\n",
hca->name, sizeof *device_attr);
if (ipoib_set_dev_features(priv, hca))
goto device_init_failed;
}
result = ib_query_device(hca, device_attr);
if (result) {
printk(KERN_WARNING "%s: ib_query_device failed (ret = %d)\n",
hca->name, result);
kfree(device_attr);
goto device_init_failed;
}
priv->hca_caps = device_attr->device_cap_flags;
kfree(device_attr);
if (priv->hca_caps & IB_DEVICE_UD_IP_CSUM) {
set_bit(IPOIB_FLAG_CSUM, &priv->flags);
priv->dev->features |= NETIF_F_SG | NETIF_F_IP_CSUM;
}
if (lro)
priv->dev->features |= NETIF_F_LRO;
/*
* Set the full membership bit, so that we join the right
......@@ -1266,9 +1280,6 @@ static struct net_device *ipoib_add_port(const char *format,
goto event_failed;
}
if (priv->dev->features & NETIF_F_SG && priv->hca_caps & IB_DEVICE_UD_TSO)
priv->dev->features |= NETIF_F_TSO;
result = register_netdev(priv->dev);
if (result) {
printk(KERN_WARNING "%s: couldn't register ipoib port %d; error %d\n",
......
drivers/infiniband/ulp/ipoib/ipoib_vlan.c
View file @ 724bdd09
......@@ -93,6 +93,10 @@ int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey)
priv->mcast_mtu = priv->admin_mtu = priv->dev->mtu;
set_bit(IPOIB_FLAG_SUBINTERFACE, &priv->flags);
result = ipoib_set_dev_features(priv, ppriv->ca);
if (result)
goto device_init_failed;
priv->pkey = pkey;
memcpy(priv->dev->dev_addr, ppriv->dev->dev_addr, INFINIBAND_ALEN);
......
drivers/net/Kconfig
View file @ 724bdd09
......@@ -2504,6 +2504,15 @@ config PASEMI_MAC
This driver supports the on-chip 1/10Gbit Ethernet controller on
PA Semi's PWRficient line of chips.
config MLX4_EN
tristate "Mellanox Technologies 10Gbit Ethernet support"
depends on PCI && INET
select MLX4_CORE
select INET_LRO
help
This driver supports Mellanox Technologies ConnectX Ethernet
devices.
config MLX4_CORE
tristate
depends on PCI
......
drivers/net/mlx4/Makefile
View file @ 724bdd09
obj-$(CONFIG_MLX4_CORE) += mlx4_core.o
mlx4_core-y := alloc.o catas.o cmd.o cq.o eq.o fw.o icm.o intf.o main.o mcg.o \
mr.o pd.o profile.o qp.o reset.o srq.o
mr.o pd.o port.o profile.o qp.o reset.o srq.o
obj-$(CONFIG_MLX4_EN) += mlx4_en.o
mlx4_en-y := en_main.o en_tx.o en_rx.o en_params.o en_port.o en_cq.o \
en_resources.o en_netdev.o
drivers/net/mlx4/alloc.c
View file @ 724bdd09
......@@ -48,13 +48,16 @@ u32 mlx4_bitmap_alloc(struct mlx4_bitmap *bitmap)
obj = find_next_zero_bit(bitmap->table, bitmap->max, bitmap->last);
if (obj >= bitmap->max) {
bitmap->top = (bitmap->top + bitmap->max) & bitmap->mask;
bitmap->top = (bitmap->top + bitmap->max + bitmap->reserved_top)
& bitmap->mask;
obj = find_first_zero_bit(bitmap->table, bitmap->max);
}
if (obj < bitmap->max) {
set_bit(obj, bitmap->table);
bitmap->last = (obj + 1) & (bitmap->max - 1);
bitmap->last = (obj + 1);
if (bitmap->last == bitmap->max)
bitmap->last = 0;
obj |= bitmap->top;
} else
obj = -1;
......@@ -66,16 +69,90 @@ u32 mlx4_bitmap_alloc(struct mlx4_bitmap *bitmap)
void mlx4_bitmap_free(struct mlx4_bitmap *bitmap, u32 obj)
{
obj &= bitmap->max - 1;
mlx4_bitmap_free_range(bitmap, obj, 1);
}
static unsigned long find_aligned_range(unsigned long *bitmap,
u32 start, u32 nbits,
int len, int align)
{
unsigned long end, i;
again:
start = ALIGN(start, align);
while ((start < nbits) && test_bit(start, bitmap))
start += align;
if (start >= nbits)
return -1;
end = start+len;
if (end > nbits)
return -1;
for (i = start + 1; i < end; i++) {
if (test_bit(i, bitmap)) {
start = i + 1;
goto again;
}
}
return start;
}
u32 mlx4_bitmap_alloc_range(struct mlx4_bitmap *bitmap, int cnt, int align)
{
u32 obj, i;
if (likely(cnt == 1 && align == 1))
return mlx4_bitmap_alloc(bitmap);
spin_lock(&bitmap->lock);
obj = find_aligned_range(bitmap->table, bitmap->last,
bitmap->max, cnt, align);
if (obj >= bitmap->max) {
bitmap->top = (bitmap->top + bitmap->max + bitmap->reserved_top)
& bitmap->mask;
obj = find_aligned_range(bitmap->table, 0, bitmap->max,
cnt, align);
}
if (obj < bitmap->max) {
for (i = 0; i < cnt; i++)
set_bit(obj + i, bitmap->table);
if (obj == bitmap->last) {
bitmap->last = (obj + cnt);
if (bitmap->last >= bitmap->max)
bitmap->last = 0;
}
obj |= bitmap->top;
} else
obj = -1;
spin_unlock(&bitmap->lock);
return obj;
}
void mlx4_bitmap_free_range(struct mlx4_bitmap *bitmap, u32 obj, int cnt)
{
u32 i;
obj &= bitmap->max + bitmap->reserved_top - 1;
spin_lock(&bitmap->lock);
clear_bit(obj, bitmap->table);
for (i = 0; i < cnt; i++)
clear_bit(obj + i, bitmap->table);
bitmap->last = min(bitmap->last, obj);
bitmap->top = (bitmap->top + bitmap->max) & bitmap->mask;
bitmap->top = (bitmap->top + bitmap->max + bitmap->reserved_top)
& bitmap->mask;
spin_unlock(&bitmap->lock);
}
int mlx4_bitmap_init(struct mlx4_bitmap *bitmap, u32 num, u32 mask, u32 reserved)
int mlx4_bitmap_init(struct mlx4_bitmap *bitmap, u32 num, u32 mask,
u32 reserved_bot, u32 reserved_top)
{
int i;
......@@ -85,14 +162,16 @@ int mlx4_bitmap_init(struct mlx4_bitmap *bitmap, u32 num, u32 mask, u32 reserved
bitmap->last = 0;
bitmap->top = 0;
bitmap->max = num;
bitmap->max = num - reserved_top;
bitmap->mask = mask;
bitmap->reserved_top = reserved_top;
spin_lock_init(&bitmap->lock);
bitmap->table = kzalloc(BITS_TO_LONGS(num) * sizeof (long), GFP_KERNEL);
bitmap->table = kzalloc(BITS_TO_LONGS(bitmap->max) *
sizeof (long), GFP_KERNEL);
if (!bitmap->table)
return -ENOMEM;
for (i = 0; i < reserved; ++i)
for (i = 0; i < reserved_bot; ++i)
set_bit(i, bitmap->table);
return 0;
......
drivers/net/mlx4/cq.c
View file @ 724bdd09
......@@ -300,7 +300,7 @@ int mlx4_init_cq_table(struct mlx4_dev *dev)
INIT_RADIX_TREE(&cq_table->tree, GFP_ATOMIC);
err = mlx4_bitmap_init(&cq_table->bitmap, dev->caps.num_cqs,
dev->caps.num_cqs - 1, dev->caps.reserved_cqs);
dev->caps.num_cqs - 1, dev->caps.reserved_cqs, 0);
if (err)
return err;
......
drivers/net/mlx4/en_cq.c 0 → 100644
View file @ 724bdd09
/*
* Copyright (c) 2007 Mellanox Technologies. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
*/
#include <linux/mlx4/cq.h>
#include <linux/mlx4/qp.h>
#include <linux/mlx4/cmd.h>
#include "mlx4_en.h"
static void mlx4_en_cq_event(struct mlx4_cq *cq, enum mlx4_event event)
{
return;
}
int mlx4_en_create_cq(struct mlx4_en_priv *priv,
struct mlx4_en_cq *cq,
int entries, int ring, enum cq_type mode)
{
struct mlx4_en_dev *mdev = priv->mdev;
int err;
cq->size = entries;
if (mode == RX)
cq->buf_size = cq->size * sizeof(struct mlx4_cqe);
else
cq->buf_size = sizeof(struct mlx4_cqe);
cq->ring = ring;
cq->is_tx = mode;
spin_lock_init(&cq->lock);
err = mlx4_alloc_hwq_res(mdev->dev, &cq->wqres,
cq->buf_size, 2 * PAGE_SIZE);
if (err)
return err;
err = mlx4_en_map_buffer(&cq->wqres.buf);
if (err)
mlx4_free_hwq_res(mdev->dev, &cq->wqres, cq->buf_size);
return err;
}
int mlx4_en_activate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq)
{
struct mlx4_en_dev *mdev = priv->mdev;
int err;
cq->dev = mdev->pndev[priv->port];
cq->mcq.set_ci_db = cq->wqres.db.db;
cq->mcq.arm_db = cq->wqres.db.db + 1;
*cq->mcq.set_ci_db = 0;
*cq->mcq.arm_db = 0;
cq->buf = (struct mlx4_cqe *) cq->wqres.buf.direct.buf;
memset(cq->buf, 0, cq->buf_size);
err = mlx4_cq_alloc(mdev->dev, cq->size, &cq->wqres.mtt, &mdev->priv_uar,
cq->wqres.db.dma, &cq->mcq, cq->is_tx);
if (err)
return err;
cq->mcq.comp = cq->is_tx ? mlx4_en_tx_irq : mlx4_en_rx_irq;
cq->mcq.event = mlx4_en_cq_event;
if (cq->is_tx) {
init_timer(&cq->timer);
cq->timer.function = mlx4_en_poll_tx_cq;
cq->timer.data = (unsigned long) cq;
} else {
netif_napi_add(cq->dev, &cq->napi, mlx4_en_poll_rx_cq, 64);
napi_enable(&cq->napi);
}
return 0;
}
void mlx4_en_destroy_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq)
{
struct mlx4_en_dev *mdev = priv->mdev;
mlx4_en_unmap_buffer(&cq->wqres.buf);
mlx4_free_hwq_res(mdev->dev, &cq->wqres, cq->buf_size);
cq->buf_size = 0;
cq->buf = NULL;
}
void mlx4_en_deactivate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq)
{
struct mlx4_en_dev *mdev = priv->mdev;
if (cq->is_tx)
del_timer(&cq->timer);
else
napi_disable(&cq->napi);
mlx4_cq_free(mdev->dev, &cq->mcq);
}
/* Set rx cq moderation parameters */
int mlx4_en_set_cq_moder(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq)
{
return mlx4_cq_modify(priv->mdev->dev, &cq->mcq,
cq->moder_cnt, cq->moder_time);
}
int mlx4_en_arm_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq)
{
cq->armed = 1;
mlx4_cq_arm(&cq->mcq, MLX4_CQ_DB_REQ_NOT, priv->mdev->uar_map,
&priv->mdev->uar_lock);
return 0;
}
drivers/net/mlx4/en_main.c 0 → 100644
View file @ 724bdd09
/*
* Copyright (c) 2007 Mellanox Technologies. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
*/
#include <linux/cpumask.h>
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/netdevice.h>
#include <linux/cpumask.h>
#include <linux/mlx4/driver.h>
#include <linux/mlx4/device.h>
#include <linux/mlx4/cmd.h>
#include "mlx4_en.h"
MODULE_AUTHOR("Liran Liss, Yevgeny Petrilin");
MODULE_DESCRIPTION("Mellanox ConnectX HCA Ethernet driver");
MODULE_LICENSE("Dual BSD/GPL");
MODULE_VERSION(DRV_VERSION " ("DRV_RELDATE")");
static const char mlx4_en_version[] =
DRV_NAME ": Mellanox ConnectX HCA Ethernet driver v"
DRV_VERSION " (" DRV_RELDATE ")\n";
static void mlx4_en_event(struct mlx4_dev *dev, void *endev_ptr,
enum mlx4_dev_event event, int port)
{
struct mlx4_en_dev *mdev = (struct mlx4_en_dev *) endev_ptr;
struct mlx4_en_priv *priv;
if (!mdev->pndev[port])
return;
priv = netdev_priv(mdev->pndev[port]);
switch (event) {
case MLX4_DEV_EVENT_PORT_UP:
case MLX4_DEV_EVENT_PORT_DOWN:
/* To prevent races, we poll the link state in a separate
task rather than changing it here */
priv->link_state = event;
queue_work(mdev->workqueue, &priv->linkstate_task);
break;
case MLX4_DEV_EVENT_CATASTROPHIC_ERROR:
mlx4_err(mdev, "Internal error detected, restarting device\n");
break;
default:
mlx4_warn(mdev, "Unhandled event: %d\n", event);
}
}
static void mlx4_en_remove(struct mlx4_dev *dev, void *endev_ptr)
{
struct mlx4_en_dev *mdev = endev_ptr;
int i;
mutex_lock(&mdev->state_lock);
mdev->device_up = false;
mutex_unlock(&mdev->state_lock);
mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH)
if (mdev->pndev[i])
mlx4_en_destroy_netdev(mdev->pndev[i]);
flush_workqueue(mdev->workqueue);
destroy_workqueue(mdev->workqueue);
mlx4_mr_free(dev, &mdev->mr);
mlx4_uar_free(dev, &mdev->priv_uar);
mlx4_pd_free(dev, mdev->priv_pdn);
kfree(mdev);
}
static void *mlx4_en_add(struct mlx4_dev *dev)
{
static int mlx4_en_version_printed;
struct mlx4_en_dev *mdev;
int i;
int err;
if (!mlx4_en_version_printed) {
printk(KERN_INFO "%s", mlx4_en_version);
mlx4_en_version_printed++;
}
mdev = kzalloc(sizeof *mdev, GFP_KERNEL);
if (!mdev) {
dev_err(&dev->pdev->dev, "Device struct alloc failed, "
"aborting.\n");
err = -ENOMEM;
goto err_free_res;
}
if (mlx4_pd_alloc(dev, &mdev->priv_pdn))
goto err_free_dev;
if (mlx4_uar_alloc(dev, &mdev->priv_uar))
goto err_pd;
mdev->uar_map = ioremap(mdev->priv_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
if (!mdev->uar_map)
goto err_uar;
spin_lock_init(&mdev->uar_lock);
mdev->dev = dev;
mdev->dma_device = &(dev->pdev->dev);
mdev->pdev = dev->pdev;
mdev->device_up = false;
mdev->LSO_support = !!(dev->caps.flags & (1 << 15));
if (!mdev->LSO_support)
mlx4_warn(mdev, "LSO not supported, please upgrade to later "
"FW version to enable LSO\n");
if (mlx4_mr_alloc(mdev->dev, mdev->priv_pdn, 0, ~0ull,
MLX4_PERM_LOCAL_WRITE | MLX4_PERM_LOCAL_READ,
0, 0, &mdev->mr)) {
mlx4_err(mdev, "Failed allocating memory region\n");
goto err_uar;
}
if (mlx4_mr_enable(mdev->dev, &mdev->mr)) {
mlx4_err(mdev, "Failed enabling memory region\n");
goto err_mr;
}
/* Build device profile according to supplied module parameters */
err = mlx4_en_get_profile(mdev);
if (err) {
mlx4_err(mdev, "Bad module parameters, aborting.\n");
goto err_mr;
}
/* Configure wich ports to start according to module parameters */
mdev->port_cnt = 0;
mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH)
mdev->port_cnt++;
/* If we did not receive an explicit number of Rx rings, default to
* the number of completion vectors populated by the mlx4_core */
mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH) {
mlx4_info(mdev, "Using %d tx rings for port:%d\n",
mdev->profile.prof[i].tx_ring_num, i);
if (!mdev->profile.prof[i].rx_ring_num) {
mdev->profile.prof[i].rx_ring_num = 1;
mlx4_info(mdev, "Defaulting to %d rx rings for port:%d\n",
1, i);
} else
mlx4_info(mdev, "Using %d rx rings for port:%d\n",
mdev->profile.prof[i].rx_ring_num, i);
}
/* Create our own workqueue for reset/multicast tasks
* Note: we cannot use the shared workqueue because of deadlocks caused
* by the rtnl lock */
mdev->workqueue = create_singlethread_workqueue("mlx4_en");
if (!mdev->workqueue) {
err = -ENOMEM;
goto err_close_nic;
}
/* At this stage all non-port specific tasks are complete:
* mark the card state as up */
mutex_init(&mdev->state_lock);
mdev->device_up = true;
/* Setup ports */
/* Create a netdev for each port */
mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH) {
mlx4_info(mdev, "Activating port:%d\n", i);
if (mlx4_en_init_netdev(mdev, i, &mdev->profile.prof[i])) {
mdev->pndev[i] = NULL;
goto err_free_netdev;
}
}
return mdev;
err_free_netdev:
mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH) {
if (mdev->pndev[i])
mlx4_en_destroy_netdev(mdev->pndev[i]);
}
mutex_lock(&mdev->state_lock);
mdev->device_up = false;
mutex_unlock(&mdev->state_lock);
flush_workqueue(mdev->workqueue);
/* Stop event queue before we drop down to release shared SW state */
err_close_nic:
destroy_workqueue(mdev->workqueue);
err_mr:
mlx4_mr_free(dev, &mdev->mr);
err_uar:
mlx4_uar_free(dev, &mdev->priv_uar);
err_pd:
mlx4_pd_free(dev, mdev->priv_pdn);
err_free_dev:
kfree(mdev);
err_free_res:
return NULL;
}
static struct mlx4_interface mlx4_en_interface = {
.add = mlx4_en_add,
.remove = mlx4_en_remove,
.event = mlx4_en_event,
};
static int __init mlx4_en_init(void)
{
return mlx4_register_interface(&mlx4_en_interface);
}
static void __exit mlx4_en_cleanup(void)
{
mlx4_unregister_interface(&mlx4_en_interface);
}
module_init(mlx4_en_init);
module_exit(mlx4_en_cleanup);
drivers/net/mlx4/en_netdev.c 0 → 100644
View file @ 724bdd09
/*
* Copyright (c) 2007 Mellanox Technologies. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
*/
#include <linux/etherdevice.h>
#include <linux/tcp.h>
#include <linux/if_vlan.h>
#include <linux/delay.h>
#include <linux/mlx4/driver.h>
#include <linux/mlx4/device.h>
#include <linux/mlx4/cmd.h>
#include <linux/mlx4/cq.h>
#include "mlx4_en.h"
#include "en_port.h"
static void mlx4_en_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
struct mlx4_en_dev *mdev = priv->mdev;
int err;
mlx4_dbg(HW, priv, "Registering VLAN group:%p\n", grp);
priv->vlgrp = grp;
mutex_lock(&mdev->state_lock);
if (mdev->device_up && priv->port_up) {
err = mlx4_SET_VLAN_FLTR(mdev->dev, priv->port, grp);
if (err)
mlx4_err(mdev, "Failed configuring VLAN filter\n");
}
mutex_unlock(&mdev->state_lock);
}
static void mlx4_en_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
struct mlx4_en_dev *mdev = priv->mdev;
int err;
if (!priv->vlgrp)
return;
mlx4_dbg(HW, priv, "adding VLAN:%d (vlgrp entry:%p)\n",
vid, vlan_group_get_device(priv->vlgrp, vid));
/* Add VID to port VLAN filter */
mutex_lock(&mdev->state_lock);
if (mdev->device_up && priv->port_up) {
err = mlx4_SET_VLAN_FLTR(mdev->dev, priv->port, priv->vlgrp);
if (err)
mlx4_err(mdev, "Failed configuring VLAN filter\n");
}
mutex_unlock(&mdev->state_lock);
}
static void mlx4_en_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
struct mlx4_en_dev *mdev = priv->mdev;
int err;
if (!priv->vlgrp)
return;
mlx4_dbg(HW, priv, "Killing VID:%d (vlgrp:%p vlgrp "
"entry:%p)\n", vid, priv->vlgrp,
vlan_group_get_device(priv->vlgrp, vid));
vlan_group_set_device(priv->vlgrp, vid, NULL);
/* Remove VID from port VLAN filter */
mutex_lock(&mdev->state_lock);
if (mdev->device_up && priv->port_up) {
err = mlx4_SET_VLAN_FLTR(mdev->dev, priv->port, priv->vlgrp);
if (err)
mlx4_err(mdev, "Failed configuring VLAN filter\n");
}
mutex_unlock(&mdev->state_lock);
}
static u64 mlx4_en_mac_to_u64(u8 *addr)
{
u64 mac = 0;
int i;
for (i = 0; i < ETH_ALEN; i++) {
mac <<= 8;
mac |= addr[i];
}
return mac;
}
static int mlx4_en_set_mac(struct net_device *dev, void *addr)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
struct mlx4_en_dev *mdev = priv->mdev;
struct sockaddr *saddr = addr;
if (!is_valid_ether_addr(saddr->sa_data))
return -EADDRNOTAVAIL;
memcpy(dev->dev_addr, saddr->sa_data, ETH_ALEN);
priv->mac = mlx4_en_mac_to_u64(dev->dev_addr);
queue_work(mdev->workqueue, &priv->mac_task);
return 0;
}
static void mlx4_en_do_set_mac(struct work_struct *work)
{
struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv,
mac_task);
struct mlx4_en_dev *mdev = priv->mdev;
int err = 0;
mutex_lock(&mdev->state_lock);
if (priv->port_up) {
/* Remove old MAC and insert the new one */
mlx4_unregister_mac(mdev->dev, priv->port, priv->mac_index);
err = mlx4_register_mac(mdev->dev, priv->port,
priv->mac, &priv->mac_index);
if (err)
mlx4_err(mdev, "Failed changing HW MAC address\n");
} else
mlx4_dbg(HW, priv, "Port is down, exiting...\n");
mutex_unlock(&mdev->state_lock);
}
static void mlx4_en_clear_list(struct net_device *dev)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
struct dev_mc_list *plist = priv->mc_list;
struct dev_mc_list *next;
while (plist) {
next = plist->next;
kfree(plist);
plist = next;
}
priv->mc_list = NULL;
}
static void mlx4_en_cache_mclist(struct net_device *dev)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
struct mlx4_en_dev *mdev = priv->mdev;
struct dev_mc_list *mclist;
struct dev_mc_list *tmp;
struct dev_mc_list *plist = NULL;
for (mclist = dev->mc_list; mclist; mclist = mclist->next) {
tmp = kmalloc(sizeof(struct dev_mc_list), GFP_ATOMIC);
if (!tmp) {
mlx4_err(mdev, "failed to allocate multicast list\n");
mlx4_en_clear_list(dev);
return;
}
memcpy(tmp, mclist, sizeof(struct dev_mc_list));
tmp->next = NULL;
if (plist)
plist->next = tmp;
else
priv->mc_list = tmp;
plist = tmp;
}
}
static void mlx4_en_set_multicast(struct net_device *dev)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
if (!priv->port_up)
return;
queue_work(priv->mdev->workqueue, &priv->mcast_task);
}
static void mlx4_en_do_set_multicast(struct work_struct *work)
{
struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv,
mcast_task);
struct mlx4_en_dev *mdev = priv->mdev;
struct net_device *dev = priv->dev;
struct dev_mc_list *mclist;
u64 mcast_addr = 0;
int err;
mutex_lock(&mdev->state_lock);
if (!mdev->device_up) {
mlx4_dbg(HW, priv, "Card is not up, ignoring "
"multicast change.\n");
goto out;
}
if (!priv->port_up) {
mlx4_dbg(HW, priv, "Port is down, ignoring "
"multicast change.\n");
goto out;
}
/*
* Promsicuous mode: disable all filters
*/
if (dev->flags & IFF_PROMISC) {
if (!(priv->flags & MLX4_EN_FLAG_PROMISC)) {
if (netif_msg_rx_status(priv))
mlx4_warn(mdev, "Port:%d entering promiscuous mode\n",
priv->port);
priv->flags |= MLX4_EN_FLAG_PROMISC;
/* Enable promiscouos mode */
err = mlx4_SET_PORT_qpn_calc(mdev->dev, priv->port,
priv->base_qpn, 1);
if (err)
mlx4_err(mdev, "Failed enabling "
"promiscous mode\n");
/* Disable port multicast filter (unconditionally) */
err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0,
0, MLX4_MCAST_DISABLE);
if (err)
mlx4_err(mdev, "Failed disabling "
"multicast filter\n");
/* Disable port VLAN filter */
err = mlx4_SET_VLAN_FLTR(mdev->dev, priv->port, NULL);
if (err)
mlx4_err(mdev, "Failed disabling "
"VLAN filter\n");
}
goto out;
}
/*
* Not in promiscous mode
*/
if (priv->flags & MLX4_EN_FLAG_PROMISC) {
if (netif_msg_rx_status(priv))
mlx4_warn(mdev, "Port:%d leaving promiscuous mode\n",
priv->port);
priv->flags &= ~MLX4_EN_FLAG_PROMISC;
/* Disable promiscouos mode */
err = mlx4_SET_PORT_qpn_calc(mdev->dev, priv->port,
priv->base_qpn, 0);
if (err)
mlx4_err(mdev, "Failed disabling promiscous mode\n");
/* Enable port VLAN filter */
err = mlx4_SET_VLAN_FLTR(mdev->dev, priv->port, priv->vlgrp);
if (err)
mlx4_err(mdev, "Failed enabling VLAN filter\n");
}
/* Enable/disable the multicast filter according to IFF_ALLMULTI */
if (dev->flags & IFF_ALLMULTI) {
err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0,
0, MLX4_MCAST_DISABLE);
if (err)
mlx4_err(mdev, "Failed disabling multicast filter\n");
} else {
err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0,
0, MLX4_MCAST_DISABLE);
if (err)
mlx4_err(mdev, "Failed disabling multicast filter\n");
/* Flush mcast filter and init it with broadcast address */
mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, ETH_BCAST,
1, MLX4_MCAST_CONFIG);
/* Update multicast list - we cache all addresses so they won't
* change while HW is updated holding the command semaphor */
netif_tx_lock_bh(dev);
mlx4_en_cache_mclist(dev);
netif_tx_unlock_bh(dev);
for (mclist = priv->mc_list; mclist; mclist = mclist->next) {
mcast_addr = mlx4_en_mac_to_u64(mclist->dmi_addr);
mlx4_SET_MCAST_FLTR(mdev->dev, priv->port,
mcast_addr, 0, MLX4_MCAST_CONFIG);
}
err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0,
0, MLX4_MCAST_ENABLE);
if (err)
mlx4_err(mdev, "Failed enabling multicast filter\n");
mlx4_en_clear_list(dev);
}
out:
mutex_unlock(&mdev->state_lock);
}
#ifdef CONFIG_NET_POLL_CONTROLLER
static void mlx4_en_netpoll(struct net_device *dev)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
struct mlx4_en_cq *cq;
unsigned long flags;
int i;
for (i = 0; i < priv->rx_ring_num; i++) {
cq = &priv->rx_cq[i];
spin_lock_irqsave(&cq->lock, flags);
napi_synchronize(&cq->napi);
mlx4_en_process_rx_cq(dev, cq, 0);
spin_unlock_irqrestore(&cq->lock, flags);
}
}
#endif
static void mlx4_en_tx_timeout(struct net_device *dev)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
struct mlx4_en_dev *mdev = priv->mdev;
if (netif_msg_timer(priv))
mlx4_warn(mdev, "Tx timeout called on port:%d\n", priv->port);
if (netif_carrier_ok(dev)) {
priv->port_stats.tx_timeout++;
mlx4_dbg(DRV, priv, "Scheduling watchdog\n");
queue_work(mdev->workqueue, &priv->watchdog_task);
}
}
static struct net_device_stats *mlx4_en_get_stats(struct net_device *dev)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
spin_lock_bh(&priv->stats_lock);
memcpy(&priv->ret_stats, &priv->stats, sizeof(priv->stats));
spin_unlock_bh(&priv->stats_lock);
return &priv->ret_stats;
}
static void mlx4_en_set_default_moderation(struct mlx4_en_priv *priv)
{
struct mlx4_en_dev *mdev = priv->mdev;
struct mlx4_en_cq *cq;
int i;
/* If we haven't received a specific coalescing setting
* (module param), we set the moderation paramters as follows:
* - moder_cnt is set to the number of mtu sized packets to
* satisfy our coelsing target.
* - moder_time is set to a fixed value.
*/
priv->rx_frames = (mdev->profile.rx_moder_cnt ==
MLX4_EN_AUTO_CONF) ?
MLX4_EN_RX_COAL_TARGET /
priv->dev->mtu + 1 :
mdev->profile.rx_moder_cnt;
priv->rx_usecs = (mdev->profile.rx_moder_time ==
MLX4_EN_AUTO_CONF) ?
MLX4_EN_RX_COAL_TIME :
mdev->profile.rx_moder_time;
mlx4_dbg(INTR, priv, "Default coalesing params for mtu:%d - "
"rx_frames:%d rx_usecs:%d\n",
priv->dev->mtu, priv->rx_frames, priv->rx_usecs);
/* Setup cq moderation params */
for (i = 0; i < priv->rx_ring_num; i++) {
cq = &priv->rx_cq[i];
cq->moder_cnt = priv->rx_frames;
cq->moder_time = priv->rx_usecs;
}
for (i = 0; i < priv->tx_ring_num; i++) {
cq = &priv->tx_cq[i];
cq->moder_cnt = MLX4_EN_TX_COAL_PKTS;
cq->moder_time = MLX4_EN_TX_COAL_TIME;
}
/* Reset auto-moderation params */
priv->pkt_rate_low = MLX4_EN_RX_RATE_LOW;
priv->rx_usecs_low = MLX4_EN_RX_COAL_TIME_LOW;
priv->pkt_rate_high = MLX4_EN_RX_RATE_HIGH;
priv->rx_usecs_high = MLX4_EN_RX_COAL_TIME_HIGH;
priv->sample_interval = MLX4_EN_SAMPLE_INTERVAL;
priv->adaptive_rx_coal = mdev->profile.auto_moder;
priv->last_moder_time = MLX4_EN_AUTO_CONF;
priv->last_moder_jiffies = 0;
priv->last_moder_packets = 0;
priv->last_moder_tx_packets = 0;
priv->last_moder_bytes = 0;
}
static void mlx4_en_auto_moderation(struct mlx4_en_priv *priv)
{
unsigned long period = (unsigned long) (jiffies - priv->last_moder_jiffies);
struct mlx4_en_dev *mdev = priv->mdev;
struct mlx4_en_cq *cq;
unsigned long packets;
unsigned long rate;
unsigned long avg_pkt_size;
unsigned long rx_packets;
unsigned long rx_bytes;
unsigned long tx_packets;
unsigned long tx_pkt_diff;
unsigned long rx_pkt_diff;
int moder_time;
int i, err;
if (!priv->adaptive_rx_coal || period < priv->sample_interval * HZ)
return;
spin_lock_bh(&priv->stats_lock);
rx_packets = priv->stats.rx_packets;
rx_bytes = priv->stats.rx_bytes;
tx_packets = priv->stats.tx_packets;
spin_unlock_bh(&priv->stats_lock);
if (!priv->last_moder_jiffies || !period)
goto out;
tx_pkt_diff = ((unsigned long) (tx_packets -
priv->last_moder_tx_packets));
rx_pkt_diff = ((unsigned long) (rx_packets -
priv->last_moder_packets));
packets = max(tx_pkt_diff, rx_pkt_diff);
rate = packets * HZ / period;
avg_pkt_size = packets ? ((unsigned long) (rx_bytes -
priv->last_moder_bytes)) / packets : 0;
/* Apply auto-moderation only when packet rate exceeds a rate that
* it matters */
if (rate > MLX4_EN_RX_RATE_THRESH) {
/* If tx and rx packet rates are not balanced, assume that
* traffic is mainly BW bound and apply maximum moderation.
* Otherwise, moderate according to packet rate */
if (2 * tx_pkt_diff > 3 * rx_pkt_diff ||
2 * rx_pkt_diff > 3 * tx_pkt_diff) {
moder_time = priv->rx_usecs_high;
} else {
if (rate < priv->pkt_rate_low)
moder_time = priv->rx_usecs_low;
else if (rate > priv->pkt_rate_high)
moder_time = priv->rx_usecs_high;
else
moder_time = (rate - priv->pkt_rate_low) *
(priv->rx_usecs_high - priv->rx_usecs_low) /
(priv->pkt_rate_high - priv->pkt_rate_low) +
priv->rx_usecs_low;
}
} else {
/* When packet rate is low, use default moderation rather than
* 0 to prevent interrupt storms if traffic suddenly increases */
moder_time = priv->rx_usecs;
}
mlx4_dbg(INTR, priv, "tx rate:%lu rx_rate:%lu\n",
tx_pkt_diff * HZ / period, rx_pkt_diff * HZ / period);
mlx4_dbg(INTR, priv, "Rx moder_time changed from:%d to %d period:%lu "
"[jiff] packets:%lu avg_pkt_size:%lu rate:%lu [p/s])\n",
priv->last_moder_time, moder_time, period, packets,
avg_pkt_size, rate);
if (moder_time != priv->last_moder_time) {
priv->last_moder_time = moder_time;
for (i = 0; i < priv->rx_ring_num; i++) {
cq = &priv->rx_cq[i];
cq->moder_time = moder_time;
err = mlx4_en_set_cq_moder(priv, cq);
if (err) {
mlx4_err(mdev, "Failed modifying moderation for cq:%d "
"on port:%d\n", i, priv->port);
break;
}
}
}
out:
priv->last_moder_packets = rx_packets;
priv->last_moder_tx_packets = tx_packets;
priv->last_moder_bytes = rx_bytes;
priv->last_moder_jiffies = jiffies;
}
static void mlx4_en_do_get_stats(struct work_struct *work)
{
struct delayed_work *delay = container_of(work, struct delayed_work, work);
struct mlx4_en_priv *priv = container_of(delay, struct mlx4_en_priv,
stats_task);
struct mlx4_en_dev *mdev = priv->mdev;
int err;
err = mlx4_en_DUMP_ETH_STATS(mdev, priv->port, 0);
if (err)
mlx4_dbg(HW, priv, "Could not update stats for "
"port:%d\n", priv->port);
mutex_lock(&mdev->state_lock);
if (mdev->device_up) {
if (priv->port_up)
mlx4_en_auto_moderation(priv);
queue_delayed_work(mdev->workqueue, &priv->stats_task, STATS_DELAY);
}
mutex_unlock(&mdev->state_lock);
}
static void mlx4_en_linkstate(struct work_struct *work)
{
struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv,
linkstate_task);
struct mlx4_en_dev *mdev = priv->mdev;
int linkstate = priv->link_state;
mutex_lock(&mdev->state_lock);
/* If observable port state changed set carrier state and
* report to system log */
if (priv->last_link_state != linkstate) {
if (linkstate == MLX4_DEV_EVENT_PORT_DOWN) {
if (netif_msg_link(priv))
mlx4_info(mdev, "Port %d - link down\n", priv->port);
netif_carrier_off(priv->dev);
} else {
if (netif_msg_link(priv))
mlx4_info(mdev, "Port %d - link up\n", priv->port);
netif_carrier_on(priv->dev);
}
}
priv->last_link_state = linkstate;
mutex_unlock(&mdev->state_lock);
}
static int mlx4_en_start_port(struct net_device *dev)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
struct mlx4_en_dev *mdev = priv->mdev;
struct mlx4_en_cq *cq;
struct mlx4_en_tx_ring *tx_ring;
struct mlx4_en_rx_ring *rx_ring;
int rx_index = 0;
int tx_index = 0;
u16 stride;
int err = 0;
int i;
int j;
if (priv->port_up) {
mlx4_dbg(DRV, priv, "start port called while port already up\n");
return 0;
}
/* Calculate Rx buf size */
dev->mtu = min(dev->mtu, priv->max_mtu);
mlx4_en_calc_rx_buf(dev);
mlx4_dbg(DRV, priv, "Rx buf size:%d\n", priv->rx_skb_size);
stride = roundup_pow_of_two(sizeof(struct mlx4_en_rx_desc) +
DS_SIZE * priv->num_frags);
/* Configure rx cq's and rings */
for (i = 0; i < priv->rx_ring_num; i++) {
cq = &priv->rx_cq[i];
rx_ring = &priv->rx_ring[i];
err = mlx4_en_activate_cq(priv, cq);
if (err) {
mlx4_err(mdev, "Failed activating Rx CQ\n");
goto rx_err;
}
for (j = 0; j < cq->size; j++)
cq->buf[j].owner_sr_opcode = MLX4_CQE_OWNER_MASK;
err = mlx4_en_set_cq_moder(priv, cq);
if (err) {
mlx4_err(mdev, "Failed setting cq moderation parameters");
mlx4_en_deactivate_cq(priv, cq);
goto cq_err;
}
mlx4_en_arm_cq(priv, cq);
++rx_index;
}
err = mlx4_en_activate_rx_rings(priv);
if (err) {
mlx4_err(mdev, "Failed to activate RX rings\n");
goto cq_err;
}
err = mlx4_en_config_rss_steer(priv);
if (err) {
mlx4_err(mdev, "Failed configuring rss steering\n");
goto rx_err;
}
/* Configure tx cq's and rings */
for (i = 0; i < priv->tx_ring_num; i++) {
/* Configure cq */
cq = &priv->tx_cq[i];
err = mlx4_en_activate_cq(priv, cq);
if (err) {
mlx4_err(mdev, "Failed allocating Tx CQ\n");
goto tx_err;
}
err = mlx4_en_set_cq_moder(priv, cq);
if (err) {
mlx4_err(mdev, "Failed setting cq moderation parameters");
mlx4_en_deactivate_cq(priv, cq);
goto tx_err;
}
mlx4_dbg(DRV, priv, "Resetting index of collapsed CQ:%d to -1\n", i);
cq->buf->wqe_index = cpu_to_be16(0xffff);
/* Configure ring */
tx_ring = &priv->tx_ring[i];
err = mlx4_en_activate_tx_ring(priv, tx_ring, cq->mcq.cqn,
priv->rx_ring[0].srq.srqn);
if (err) {
mlx4_err(mdev, "Failed allocating Tx ring\n");
mlx4_en_deactivate_cq(priv, cq);
goto tx_err;
}
/* Set initial ownership of all Tx TXBBs to SW (1) */
for (j = 0; j < tx_ring->buf_size; j += STAMP_STRIDE)
*((u32 *) (tx_ring->buf + j)) = 0xffffffff;
++tx_index;
}
/* Configure port */
err = mlx4_SET_PORT_general(mdev->dev, priv->port,
priv->rx_skb_size + ETH_FCS_LEN,
mdev->profile.tx_pause,
mdev->profile.tx_ppp,
mdev->profile.rx_pause,
mdev->profile.rx_ppp);
if (err) {
mlx4_err(mdev, "Failed setting port general configurations"
" for port %d, with error %d\n", priv->port, err);
goto tx_err;
}
/* Set default qp number */
err = mlx4_SET_PORT_qpn_calc(mdev->dev, priv->port, priv->base_qpn, 0);
if (err) {
mlx4_err(mdev, "Failed setting default qp numbers\n");
goto tx_err;
}
/* Set port mac number */
mlx4_dbg(DRV, priv, "Setting mac for port %d\n", priv->port);
err = mlx4_register_mac(mdev->dev, priv->port,
priv->mac, &priv->mac_index);
if (err) {
mlx4_err(mdev, "Failed setting port mac\n");
goto tx_err;
}
/* Init port */
mlx4_dbg(HW, priv, "Initializing port\n");
err = mlx4_INIT_PORT(mdev->dev, priv->port);
if (err) {
mlx4_err(mdev, "Failed Initializing port\n");
goto mac_err;
}
/* Schedule multicast task to populate multicast list */
queue_work(mdev->workqueue, &priv->mcast_task);
priv->port_up = true;
netif_start_queue(dev);
return 0;
mac_err:
mlx4_unregister_mac(mdev->dev, priv->port, priv->mac_index);
tx_err:
while (tx_index--) {
mlx4_en_deactivate_tx_ring(priv, &priv->tx_ring[tx_index]);
mlx4_en_deactivate_cq(priv, &priv->tx_cq[tx_index]);
}
mlx4_en_release_rss_steer(priv);
rx_err:
for (i = 0; i < priv->rx_ring_num; i++)
mlx4_en_deactivate_rx_ring(priv, &priv->rx_ring[rx_index]);
cq_err:
while (rx_index--)
mlx4_en_deactivate_cq(priv, &priv->rx_cq[rx_index]);
return err; /* need to close devices */
}
static void mlx4_en_stop_port(struct net_device *dev)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
struct mlx4_en_dev *mdev = priv->mdev;
int i;
if (!priv->port_up) {
mlx4_dbg(DRV, priv, "stop port (%d) called while port already down\n",
priv->port);
return;
}
netif_stop_queue(dev);
/* Synchronize with tx routine */
netif_tx_lock_bh(dev);
priv->port_up = false;
netif_tx_unlock_bh(dev);
/* close port*/
mlx4_CLOSE_PORT(mdev->dev, priv->port);
/* Unregister Mac address for the port */
mlx4_unregister_mac(mdev->dev, priv->port, priv->mac_index);
/* Free TX Rings */
for (i = 0; i < priv->tx_ring_num; i++) {
mlx4_en_deactivate_tx_ring(priv, &priv->tx_ring[i]);
mlx4_en_deactivate_cq(priv, &priv->tx_cq[i]);
}
msleep(10);
for (i = 0; i < priv->tx_ring_num; i++)
mlx4_en_free_tx_buf(dev, &priv->tx_ring[i]);
/* Free RSS qps */
mlx4_en_release_rss_steer(priv);
/* Free RX Rings */
for (i = 0; i < priv->rx_ring_num; i++) {
mlx4_en_deactivate_rx_ring(priv, &priv->rx_ring[i]);
while (test_bit(NAPI_STATE_SCHED, &priv->rx_cq[i].napi.state))
msleep(1);
mlx4_en_deactivate_cq(priv, &priv->rx_cq[i]);
}
}
static void mlx4_en_restart(struct work_struct *work)
{
struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv,
watchdog_task);
struct mlx4_en_dev *mdev = priv->mdev;
struct net_device *dev = priv->dev;
mlx4_dbg(DRV, priv, "Watchdog task called for port %d\n", priv->port);
mlx4_en_stop_port(dev);
if (mlx4_en_start_port(dev))
mlx4_err(mdev, "Failed restarting port %d\n", priv->port);
}
static int mlx4_en_open(struct net_device *dev)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
struct mlx4_en_dev *mdev = priv->mdev;
int i;
int err = 0;
mutex_lock(&mdev->state_lock);
if (!mdev->device_up) {
mlx4_err(mdev, "Cannot open - device down/disabled\n");
err = -EBUSY;
goto out;
}
/* Reset HW statistics and performance counters */
if (mlx4_en_DUMP_ETH_STATS(mdev, priv->port, 1))
mlx4_dbg(HW, priv, "Failed dumping statistics\n");
memset(&priv->stats, 0, sizeof(priv->stats));
memset(&priv->pstats, 0, sizeof(priv->pstats));
for (i = 0; i < priv->tx_ring_num; i++) {
priv->tx_ring[i].bytes = 0;
priv->tx_ring[i].packets = 0;
}
for (i = 0; i < priv->rx_ring_num; i++) {
priv->rx_ring[i].bytes = 0;
priv->rx_ring[i].packets = 0;
}
mlx4_en_set_default_moderation(priv);
err = mlx4_en_start_port(dev);
if (err)
mlx4_err(mdev, "Failed starting port:%d\n", priv->port);
out:
mutex_unlock(&mdev->state_lock);
return err;
}
static int mlx4_en_close(struct net_device *dev)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
struct mlx4_en_dev *mdev = priv->mdev;
if (netif_msg_ifdown(priv))
mlx4_info(mdev, "Close called for port:%d\n", priv->port);
mutex_lock(&mdev->state_lock);
mlx4_en_stop_port(dev);
netif_carrier_off(dev);
mutex_unlock(&mdev->state_lock);
return 0;
}
static void mlx4_en_free_resources(struct mlx4_en_priv *priv)
{
int i;
for (i = 0; i < priv->tx_ring_num; i++) {
if (priv->tx_ring[i].tx_info)
mlx4_en_destroy_tx_ring(priv, &priv->tx_ring[i]);
if (priv->tx_cq[i].buf)
mlx4_en_destroy_cq(priv, &priv->tx_cq[i]);
}
for (i = 0; i < priv->rx_ring_num; i++) {
if (priv->rx_ring[i].rx_info)
mlx4_en_destroy_rx_ring(priv, &priv->rx_ring[i]);
if (priv->rx_cq[i].buf)
mlx4_en_destroy_cq(priv, &priv->rx_cq[i]);
}
}
static int mlx4_en_alloc_resources(struct mlx4_en_priv *priv)
{
struct mlx4_en_dev *mdev = priv->mdev;
struct mlx4_en_port_profile *prof = priv->prof;
int i;
/* Create tx Rings */
for (i = 0; i < priv->tx_ring_num; i++) {
if (mlx4_en_create_cq(priv, &priv->tx_cq[i],
prof->tx_ring_size, i, TX))
goto err;
if (mlx4_en_create_tx_ring(priv, &priv->tx_ring[i],
prof->tx_ring_size, TXBB_SIZE))
goto err;
}
/* Create rx Rings */
for (i = 0; i < priv->rx_ring_num; i++) {
if (mlx4_en_create_cq(priv, &priv->rx_cq[i],
prof->rx_ring_size, i, RX))
goto err;
if (mlx4_en_create_rx_ring(priv, &priv->rx_ring[i],
prof->rx_ring_size, priv->stride))
goto err;
}
return 0;
err:
mlx4_err(mdev, "Failed to allocate NIC resources\n");
return -ENOMEM;
}
void mlx4_en_destroy_netdev(struct net_device *dev)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
struct mlx4_en_dev *mdev = priv->mdev;
mlx4_dbg(DRV, priv, "Destroying netdev on port:%d\n", priv->port);
/* Unregister device - this will close the port if it was up */
if (priv->registered)
unregister_netdev(dev);
if (priv->allocated)
mlx4_free_hwq_res(mdev->dev, &priv->res, MLX4_EN_PAGE_SIZE);
cancel_delayed_work(&priv->stats_task);
cancel_delayed_work(&priv->refill_task);
/* flush any pending task for this netdev */
flush_workqueue(mdev->workqueue);
/* Detach the netdev so tasks would not attempt to access it */
mutex_lock(&mdev->state_lock);
mdev->pndev[priv->port] = NULL;
mutex_unlock(&mdev->state_lock);
mlx4_en_free_resources(priv);
free_netdev(dev);
}
static int mlx4_en_change_mtu(struct net_device *dev, int new_mtu)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
struct mlx4_en_dev *mdev = priv->mdev;
int err = 0;
mlx4_dbg(DRV, priv, "Change MTU called - current:%d new:%d\n",
dev->mtu, new_mtu);
if ((new_mtu < MLX4_EN_MIN_MTU) || (new_mtu > priv->max_mtu)) {
mlx4_err(mdev, "Bad MTU size:%d.\n", new_mtu);
return -EPERM;
}
dev->mtu = new_mtu;
if (netif_running(dev)) {
mutex_lock(&mdev->state_lock);
if (!mdev->device_up) {
/* NIC is probably restarting - let watchdog task reset
* the port */
mlx4_dbg(DRV, priv, "Change MTU called with card down!?\n");
} else {
mlx4_en_stop_port(dev);
mlx4_en_set_default_moderation(priv);
err = mlx4_en_start_port(dev);
if (err) {
mlx4_err(mdev, "Failed restarting port:%d\n",
priv->port);
queue_work(mdev->workqueue, &priv->watchdog_task);
}
}
mutex_unlock(&mdev->state_lock);
}
return 0;
}
int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
struct mlx4_en_port_profile *prof)
{
struct net_device *dev;
struct mlx4_en_priv *priv;
int i;
int err;
dev = alloc_etherdev(sizeof(struct mlx4_en_priv));
if (dev == NULL) {
mlx4_err(mdev, "Net device allocation failed\n");
return -ENOMEM;
}
SET_NETDEV_DEV(dev, &mdev->dev->pdev->dev);
/*
* Initialize driver private data
*/
priv = netdev_priv(dev);
memset(priv, 0, sizeof(struct mlx4_en_priv));
priv->dev = dev;
priv->mdev = mdev;
priv->prof = prof;
priv->port = port;
priv->port_up = false;
priv->rx_csum = 1;
priv->flags = prof->flags;
priv->tx_ring_num = prof->tx_ring_num;
priv->rx_ring_num = prof->rx_ring_num;
priv->mc_list = NULL;
priv->mac_index = -1;
priv->msg_enable = MLX4_EN_MSG_LEVEL;
spin_lock_init(&priv->stats_lock);
INIT_WORK(&priv->mcast_task, mlx4_en_do_set_multicast);
INIT_WORK(&priv->mac_task, mlx4_en_do_set_mac);
INIT_DELAYED_WORK(&priv->refill_task, mlx4_en_rx_refill);
INIT_WORK(&priv->watchdog_task, mlx4_en_restart);
INIT_WORK(&priv->linkstate_task, mlx4_en_linkstate);
INIT_DELAYED_WORK(&priv->stats_task, mlx4_en_do_get_stats);
/* Query for default mac and max mtu */
priv->max_mtu = mdev->dev->caps.eth_mtu_cap[priv->port];
priv->mac = mdev->dev->caps.def_mac[priv->port];
if (ILLEGAL_MAC(priv->mac)) {
mlx4_err(mdev, "Port: %d, invalid mac burned: 0x%llx, quiting\n",
priv->port, priv->mac);
err = -EINVAL;
goto out;
}
priv->stride = roundup_pow_of_two(sizeof(struct mlx4_en_rx_desc) +
DS_SIZE * MLX4_EN_MAX_RX_FRAGS);
err = mlx4_en_alloc_resources(priv);
if (err)
goto out;
/* Populate Rx default RSS mappings */
mlx4_en_set_default_rss_map(priv, &priv->rss_map, priv->rx_ring_num *
RSS_FACTOR, priv->rx_ring_num);
/* Allocate page for receive rings */
err = mlx4_alloc_hwq_res(mdev->dev, &priv->res,
MLX4_EN_PAGE_SIZE, MLX4_EN_PAGE_SIZE);
if (err) {
mlx4_err(mdev, "Failed to allocate page for rx qps\n");
goto out;
}
priv->allocated = 1;
/* Populate Tx priority mappings */
mlx4_en_set_prio_map(priv, priv->tx_prio_map, prof->tx_ring_num);
/*
* Initialize netdev entry points
*/
dev->open = &mlx4_en_open;
dev->stop = &mlx4_en_close;
dev->hard_start_xmit = &mlx4_en_xmit;
dev->get_stats = &mlx4_en_get_stats;
dev->set_multicast_list = &mlx4_en_set_multicast;
dev->set_mac_address = &mlx4_en_set_mac;
dev->change_mtu = &mlx4_en_change_mtu;
dev->tx_timeout = &mlx4_en_tx_timeout;
dev->watchdog_timeo = MLX4_EN_WATCHDOG_TIMEOUT;
dev->vlan_rx_register = mlx4_en_vlan_rx_register;
dev->vlan_rx_add_vid = mlx4_en_vlan_rx_add_vid;
dev->vlan_rx_kill_vid = mlx4_en_vlan_rx_kill_vid;
#ifdef CONFIG_NET_POLL_CONTROLLER
dev->poll_controller = mlx4_en_netpoll;
#endif
SET_ETHTOOL_OPS(dev, &mlx4_en_ethtool_ops);
/* Set defualt MAC */
dev->addr_len = ETH_ALEN;
for (i = 0; i < ETH_ALEN; i++)
dev->dev_addr[ETH_ALEN - 1 - i] =
(u8) (priv->mac >> (8 * i));
/*
* Set driver features
*/
dev->features |= NETIF_F_SG;
dev->features |= NETIF_F_HW_CSUM;
dev->features |= NETIF_F_HIGHDMA;
dev->features |= NETIF_F_HW_VLAN_TX |
NETIF_F_HW_VLAN_RX |
NETIF_F_HW_VLAN_FILTER;
if (mdev->profile.num_lro)
dev->features |= NETIF_F_LRO;
if (mdev->LSO_support) {
dev->features |= NETIF_F_TSO;
dev->features |= NETIF_F_TSO6;
}
mdev->pndev[port] = dev;
netif_carrier_off(dev);
err = register_netdev(dev);
if (err) {
mlx4_err(mdev, "Netdev registration failed\n");
goto out;
}
priv->registered = 1;
queue_delayed_work(mdev->workqueue, &priv->stats_task, STATS_DELAY);
return 0;
out:
mlx4_en_destroy_netdev(dev);
return err;
}
drivers/net/mlx4/en_params.c 0 → 100644
View file @ 724bdd09
/*
* Copyright (c) 2007 Mellanox Technologies. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
*/
#include <linux/kernel.h>
#include <linux/ethtool.h>
#include <linux/netdevice.h>
#include "mlx4_en.h"
#include "en_port.h"
#define MLX4_EN_PARM_INT(X, def_val, desc) \
static unsigned int X = def_val;\
module_param(X , uint, 0444); \
MODULE_PARM_DESC(X, desc);
/*
* Device scope module parameters
*/
/* Use a XOR rathern than Toeplitz hash function for RSS */
MLX4_EN_PARM_INT(rss_xor, 0, "Use XOR hash function for RSS");
/* RSS hash type mask - default to <saddr, daddr, sport, dport> */
MLX4_EN_PARM_INT(rss_mask, 0xf, "RSS hash type bitmask");
/* Number of LRO sessions per Rx ring (rounded up to a power of two) */
MLX4_EN_PARM_INT(num_lro, MLX4_EN_MAX_LRO_DESCRIPTORS,
"Number of LRO sessions per ring or disabled (0)");
/* Priority pausing */
MLX4_EN_PARM_INT(pptx, MLX4_EN_DEF_TX_PAUSE,
"Pause policy on TX: 0 never generate pause frames "
"1 generate pause frames according to RX buffer threshold");
MLX4_EN_PARM_INT(pprx, MLX4_EN_DEF_RX_PAUSE,
"Pause policy on RX: 0 ignore received pause frames "
"1 respect received pause frames");
MLX4_EN_PARM_INT(pfctx, 0, "Priority based Flow Control policy on TX[7:0]."
" Per priority bit mask");
MLX4_EN_PARM_INT(pfcrx, 0, "Priority based Flow Control policy on RX[7:0]."
" Per priority bit mask");
/* Interrupt moderation tunning */
MLX4_EN_PARM_INT(rx_moder_cnt, MLX4_EN_AUTO_CONF,
"Max coalesced descriptors for Rx interrupt moderation");
MLX4_EN_PARM_INT(rx_moder_time, MLX4_EN_AUTO_CONF,
"Timeout following last packet for Rx interrupt moderation");
MLX4_EN_PARM_INT(auto_moder, 1, "Enable dynamic interrupt moderation");
MLX4_EN_PARM_INT(rx_ring_num1, 0, "Number or Rx rings for port 1 (0 = #cores)");
MLX4_EN_PARM_INT(rx_ring_num2, 0, "Number or Rx rings for port 2 (0 = #cores)");
MLX4_EN_PARM_INT(tx_ring_size1, MLX4_EN_AUTO_CONF, "Tx ring size for port 1");
MLX4_EN_PARM_INT(tx_ring_size2, MLX4_EN_AUTO_CONF, "Tx ring size for port 2");
MLX4_EN_PARM_INT(rx_ring_size1, MLX4_EN_AUTO_CONF, "Rx ring size for port 1");
MLX4_EN_PARM_INT(rx_ring_size2, MLX4_EN_AUTO_CONF, "Rx ring size for port 2");
int mlx4_en_get_profile(struct mlx4_en_dev *mdev)
{
struct mlx4_en_profile *params = &mdev->profile;
params->rx_moder_cnt = min_t(int, rx_moder_cnt, MLX4_EN_AUTO_CONF);
params->rx_moder_time = min_t(int, rx_moder_time, MLX4_EN_AUTO_CONF);
params->auto_moder = auto_moder;
params->rss_xor = (rss_xor != 0);
params->rss_mask = rss_mask & 0x1f;
params->num_lro = min_t(int, num_lro , MLX4_EN_MAX_LRO_DESCRIPTORS);
params->rx_pause = pprx;
params->rx_ppp = pfcrx;
params->tx_pause = pptx;
params->tx_ppp = pfctx;
if (params->rx_ppp || params->tx_ppp) {
params->prof[1].tx_ring_num = MLX4_EN_TX_RING_NUM;
params->prof[2].tx_ring_num = MLX4_EN_TX_RING_NUM;
} else {
params->prof[1].tx_ring_num = 1;
params->prof[2].tx_ring_num = 1;
}
params->prof[1].rx_ring_num = min_t(int, rx_ring_num1, MAX_RX_RINGS);
params->prof[2].rx_ring_num = min_t(int, rx_ring_num2, MAX_RX_RINGS);
if (tx_ring_size1 == MLX4_EN_AUTO_CONF)
tx_ring_size1 = MLX4_EN_DEF_TX_RING_SIZE;
params->prof[1].tx_ring_size =
(tx_ring_size1 < MLX4_EN_MIN_TX_SIZE) ?
MLX4_EN_MIN_TX_SIZE : roundup_pow_of_two(tx_ring_size1);
if (tx_ring_size2 == MLX4_EN_AUTO_CONF)
tx_ring_size2 = MLX4_EN_DEF_TX_RING_SIZE;
params->prof[2].tx_ring_size =
(tx_ring_size2 < MLX4_EN_MIN_TX_SIZE) ?
MLX4_EN_MIN_TX_SIZE : roundup_pow_of_two(tx_ring_size2);
if (rx_ring_size1 == MLX4_EN_AUTO_CONF)
rx_ring_size1 = MLX4_EN_DEF_RX_RING_SIZE;
params->prof[1].rx_ring_size =
(rx_ring_size1 < MLX4_EN_MIN_RX_SIZE) ?
MLX4_EN_MIN_RX_SIZE : roundup_pow_of_two(rx_ring_size1);
if (rx_ring_size2 == MLX4_EN_AUTO_CONF)
rx_ring_size2 = MLX4_EN_DEF_RX_RING_SIZE;
params->prof[2].rx_ring_size =
(rx_ring_size2 < MLX4_EN_MIN_RX_SIZE) ?
MLX4_EN_MIN_RX_SIZE : roundup_pow_of_two(rx_ring_size2);
return 0;
}
/*
* Ethtool support
*/
static void mlx4_en_update_lro_stats(struct mlx4_en_priv *priv)
{
int i;
priv->port_stats.lro_aggregated = 0;
priv->port_stats.lro_flushed = 0;
priv->port_stats.lro_no_desc = 0;
for (i = 0; i < priv->rx_ring_num; i++) {
priv->port_stats.lro_aggregated += priv->rx_ring[i].lro.stats.aggregated;
priv->port_stats.lro_flushed += priv->rx_ring[i].lro.stats.flushed;
priv->port_stats.lro_no_desc += priv->rx_ring[i].lro.stats.no_desc;
}
}
static void
mlx4_en_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
struct mlx4_en_dev *mdev = priv->mdev;
sprintf(drvinfo->driver, DRV_NAME " (%s)", mdev->dev->board_id);
strncpy(drvinfo->version, DRV_VERSION " (" DRV_RELDATE ")", 32);
sprintf(drvinfo->fw_version, "%d.%d.%d",
(u16) (mdev->dev->caps.fw_ver >> 32),
(u16) ((mdev->dev->caps.fw_ver >> 16) & 0xffff),
(u16) (mdev->dev->caps.fw_ver & 0xffff));
strncpy(drvinfo->bus_info, pci_name(mdev->dev->pdev), 32);
drvinfo->n_stats = 0;
drvinfo->regdump_len = 0;
drvinfo->eedump_len = 0;
}
static u32 mlx4_en_get_tso(struct net_device *dev)
{
return (dev->features & NETIF_F_TSO) != 0;
}
static int mlx4_en_set_tso(struct net_device *dev, u32 data)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
if (data) {
if (!priv->mdev->LSO_support)
return -EPERM;
dev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
} else
dev->features &= ~(NETIF_F_TSO | NETIF_F_TSO6);
return 0;
}
static u32 mlx4_en_get_rx_csum(struct net_device *dev)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
return priv->rx_csum;
}
static int mlx4_en_set_rx_csum(struct net_device *dev, u32 data)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
priv->rx_csum = (data != 0);
return 0;
}
static const char main_strings[][ETH_GSTRING_LEN] = {
"rx_packets", "tx_packets", "rx_bytes", "tx_bytes", "rx_errors",
"tx_errors", "rx_dropped", "tx_dropped", "multicast", "collisions",
"rx_length_errors", "rx_over_errors", "rx_crc_errors",
"rx_frame_errors", "rx_fifo_errors", "rx_missed_errors",
"tx_aborted_errors", "tx_carrier_errors", "tx_fifo_errors",
"tx_heartbeat_errors", "tx_window_errors",
/* port statistics */
"lro_aggregated", "lro_flushed", "lro_no_desc", "tso_packets",
"queue_stopped", "wake_queue", "tx_timeout", "rx_alloc_failed",
"rx_csum_good", "rx_csum_none", "tx_chksum_offload",
/* packet statistics */
"broadcast", "rx_prio_0", "rx_prio_1", "rx_prio_2", "rx_prio_3",
"rx_prio_4", "rx_prio_5", "rx_prio_6", "rx_prio_7", "tx_prio_0",
"tx_prio_1", "tx_prio_2", "tx_prio_3", "tx_prio_4", "tx_prio_5",
"tx_prio_6", "tx_prio_7",
};
#define NUM_MAIN_STATS 21
#define NUM_ALL_STATS (NUM_MAIN_STATS + NUM_PORT_STATS + NUM_PKT_STATS + NUM_PERF_STATS)
static u32 mlx4_en_get_msglevel(struct net_device *dev)
{
return ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable;
}
static void mlx4_en_set_msglevel(struct net_device *dev, u32 val)
{
((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable = val;
}
static void mlx4_en_get_wol(struct net_device *netdev,
struct ethtool_wolinfo *wol)
{
wol->supported = 0;
wol->wolopts = 0;
return;
}
static int mlx4_en_get_sset_count(struct net_device *dev, int sset)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
if (sset != ETH_SS_STATS)
return -EOPNOTSUPP;
return NUM_ALL_STATS + (priv->tx_ring_num + priv->rx_ring_num) * 2;
}
static void mlx4_en_get_ethtool_stats(struct net_device *dev,
struct ethtool_stats *stats, uint64_t *data)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
int index = 0;
int i;
spin_lock_bh(&priv->stats_lock);
mlx4_en_update_lro_stats(priv);
for (i = 0; i < NUM_MAIN_STATS; i++)
data[index++] = ((unsigned long *) &priv->stats)[i];
for (i = 0; i < NUM_PORT_STATS; i++)
data[index++] = ((unsigned long *) &priv->port_stats)[i];
for (i = 0; i < priv->tx_ring_num; i++) {
data[index++] = priv->tx_ring[i].packets;
data[index++] = priv->tx_ring[i].bytes;
}
for (i = 0; i < priv->rx_ring_num; i++) {
data[index++] = priv->rx_ring[i].packets;
data[index++] = priv->rx_ring[i].bytes;
}
for (i = 0; i < NUM_PKT_STATS; i++)
data[index++] = ((unsigned long *) &priv->pkstats)[i];
spin_unlock_bh(&priv->stats_lock);
}
static void mlx4_en_get_strings(struct net_device *dev,
uint32_t stringset, uint8_t *data)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
int index = 0;
int i;
if (stringset != ETH_SS_STATS)
return;
/* Add main counters */
for (i = 0; i < NUM_MAIN_STATS; i++)
strcpy(data + (index++) * ETH_GSTRING_LEN, main_strings[i]);
for (i = 0; i < NUM_PORT_STATS; i++)
strcpy(data + (index++) * ETH_GSTRING_LEN,
main_strings[i + NUM_MAIN_STATS]);
for (i = 0; i < priv->tx_ring_num; i++) {
sprintf(data + (index++) * ETH_GSTRING_LEN,
"tx%d_packets", i);
sprintf(data + (index++) * ETH_GSTRING_LEN,
"tx%d_bytes", i);
}
for (i = 0; i < priv->rx_ring_num; i++) {
sprintf(data + (index++) * ETH_GSTRING_LEN,
"rx%d_packets", i);
sprintf(data + (index++) * ETH_GSTRING_LEN,
"rx%d_bytes", i);
}
for (i = 0; i < NUM_PKT_STATS; i++)
strcpy(data + (index++) * ETH_GSTRING_LEN,
main_strings[i + NUM_MAIN_STATS + NUM_PORT_STATS]);
}
static int mlx4_en_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
{
cmd->autoneg = AUTONEG_DISABLE;
cmd->supported = SUPPORTED_10000baseT_Full;
cmd->advertising = SUPPORTED_10000baseT_Full;
if (netif_carrier_ok(dev)) {
cmd->speed = SPEED_10000;
cmd->duplex = DUPLEX_FULL;
} else {
cmd->speed = -1;
cmd->duplex = -1;
}
return 0;
}
static int mlx4_en_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
{
if ((cmd->autoneg == AUTONEG_ENABLE) ||
(cmd->speed != SPEED_10000) || (cmd->duplex != DUPLEX_FULL))
return -EINVAL;
/* Nothing to change */
return 0;
}
static int mlx4_en_get_coalesce(struct net_device *dev,
struct ethtool_coalesce *coal)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
coal->tx_coalesce_usecs = 0;
coal->tx_max_coalesced_frames = 0;
coal->rx_coalesce_usecs = priv->rx_usecs;
coal->rx_max_coalesced_frames = priv->rx_frames;
coal->pkt_rate_low = priv->pkt_rate_low;
coal->rx_coalesce_usecs_low = priv->rx_usecs_low;
coal->pkt_rate_high = priv->pkt_rate_high;
coal->rx_coalesce_usecs_high = priv->rx_usecs_high;
coal->rate_sample_interval = priv->sample_interval;
coal->use_adaptive_rx_coalesce = priv->adaptive_rx_coal;
return 0;
}
static int mlx4_en_set_coalesce(struct net_device *dev,
struct ethtool_coalesce *coal)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
int err, i;
priv->rx_frames = (coal->rx_max_coalesced_frames ==
MLX4_EN_AUTO_CONF) ?
MLX4_EN_RX_COAL_TARGET /
priv->dev->mtu + 1 :
coal->rx_max_coalesced_frames;
priv->rx_usecs = (coal->rx_coalesce_usecs ==
MLX4_EN_AUTO_CONF) ?
MLX4_EN_RX_COAL_TIME :
coal->rx_coalesce_usecs;
/* Set adaptive coalescing params */
priv->pkt_rate_low = coal->pkt_rate_low;
priv->rx_usecs_low = coal->rx_coalesce_usecs_low;
priv->pkt_rate_high = coal->pkt_rate_high;
priv->rx_usecs_high = coal->rx_coalesce_usecs_high;
priv->sample_interval = coal->rate_sample_interval;
priv->adaptive_rx_coal = coal->use_adaptive_rx_coalesce;
priv->last_moder_time = MLX4_EN_AUTO_CONF;
if (priv->adaptive_rx_coal)
return 0;
for (i = 0; i < priv->rx_ring_num; i++) {
priv->rx_cq[i].moder_cnt = priv->rx_frames;
priv->rx_cq[i].moder_time = priv->rx_usecs;
err = mlx4_en_set_cq_moder(priv, &priv->rx_cq[i]);
if (err)
return err;
}
return 0;
}
static int mlx4_en_set_pauseparam(struct net_device *dev,
struct ethtool_pauseparam *pause)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
struct mlx4_en_dev *mdev = priv->mdev;
int err;
mdev->profile.tx_pause = pause->tx_pause != 0;
mdev->profile.rx_pause = pause->rx_pause != 0;
err = mlx4_SET_PORT_general(mdev->dev, priv->port,
priv->rx_skb_size + ETH_FCS_LEN,
mdev->profile.tx_pause,
mdev->profile.tx_ppp,
mdev->profile.rx_pause,
mdev->profile.rx_ppp);
if (err)
mlx4_err(mdev, "Failed setting pause params to\n");
return err;
}
static void mlx4_en_get_pauseparam(struct net_device *dev,
struct ethtool_pauseparam *pause)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
struct mlx4_en_dev *mdev = priv->mdev;
pause->tx_pause = mdev->profile.tx_pause;
pause->rx_pause = mdev->profile.rx_pause;
}
static void mlx4_en_get_ringparam(struct net_device *dev,
struct ethtool_ringparam *param)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
struct mlx4_en_dev *mdev = priv->mdev;
memset(param, 0, sizeof(*param));
param->rx_max_pending = mdev->dev->caps.max_rq_sg;
param->tx_max_pending = mdev->dev->caps.max_sq_sg;
param->rx_pending = mdev->profile.prof[priv->port].rx_ring_size;
param->tx_pending = mdev->profile.prof[priv->port].tx_ring_size;
}
const struct ethtool_ops mlx4_en_ethtool_ops = {
.get_drvinfo = mlx4_en_get_drvinfo,
.get_settings = mlx4_en_get_settings,
.set_settings = mlx4_en_set_settings,
#ifdef NETIF_F_TSO
.get_tso = mlx4_en_get_tso,
.set_tso = mlx4_en_set_tso,
#endif
.get_sg = ethtool_op_get_sg,
.set_sg = ethtool_op_set_sg,
.get_link = ethtool_op_get_link,
.get_rx_csum = mlx4_en_get_rx_csum,
.set_rx_csum = mlx4_en_set_rx_csum,
.get_tx_csum = ethtool_op_get_tx_csum,
.set_tx_csum = ethtool_op_set_tx_ipv6_csum,
.get_strings = mlx4_en_get_strings,
.get_sset_count = mlx4_en_get_sset_count,
.get_ethtool_stats = mlx4_en_get_ethtool_stats,
.get_wol = mlx4_en_get_wol,
.get_msglevel = mlx4_en_get_msglevel,
.set_msglevel = mlx4_en_set_msglevel,
.get_coalesce = mlx4_en_get_coalesce,
.set_coalesce = mlx4_en_set_coalesce,
.get_pauseparam = mlx4_en_get_pauseparam,
.set_pauseparam = mlx4_en_set_pauseparam,
.get_ringparam = mlx4_en_get_ringparam,
.get_flags = ethtool_op_get_flags,
.set_flags = ethtool_op_set_flags,
};
drivers/net/mlx4/en_port.c 0 → 100644
View file @ 724bdd09
/*
* Copyright (c) 2007 Mellanox Technologies. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
*/
#include <linux/if_vlan.h>
#include <linux/mlx4/device.h>
#include <linux/mlx4/cmd.h>
#include "en_port.h"
#include "mlx4_en.h"
int mlx4_SET_MCAST_FLTR(struct mlx4_dev *dev, u8 port,
u64 mac, u64 clear, u8 mode)
{
return mlx4_cmd(dev, (mac | (clear << 63)), port, mode,
MLX4_CMD_SET_MCAST_FLTR, MLX4_CMD_TIME_CLASS_B);
}
int mlx4_SET_VLAN_FLTR(struct mlx4_dev *dev, u8 port, struct vlan_group *grp)
{
struct mlx4_cmd_mailbox *mailbox;
struct mlx4_set_vlan_fltr_mbox *filter;
int i;
int j;
int index = 0;
u32 entry;
int err = 0;
mailbox = mlx4_alloc_cmd_mailbox(dev);
if (IS_ERR(mailbox))
return PTR_ERR(mailbox);
filter = mailbox->buf;
if (grp) {
memset(filter, 0, sizeof *filter);
for (i = VLAN_FLTR_SIZE - 1; i >= 0; i--) {
entry = 0;
for (j = 0; j < 32; j++)
if (vlan_group_get_device(grp, index++))
entry |= 1 << j;
filter->entry[i] = cpu_to_be32(entry);
}
} else {
/* When no vlans are configured we block all vlans */
memset(filter, 0, sizeof(*filter));
}
err = mlx4_cmd(dev, mailbox->dma, port, 0, MLX4_CMD_SET_VLAN_FLTR,
MLX4_CMD_TIME_CLASS_B);
mlx4_free_cmd_mailbox(dev, mailbox);
return err;
}
int mlx4_SET_PORT_general(struct mlx4_dev *dev, u8 port, int mtu,
u8 pptx, u8 pfctx, u8 pprx, u8 pfcrx)
{
struct mlx4_cmd_mailbox *mailbox;
struct mlx4_set_port_general_context *context;
int err;
u32 in_mod;
mailbox = mlx4_alloc_cmd_mailbox(dev);
if (IS_ERR(mailbox))
return PTR_ERR(mailbox);
context = mailbox->buf;
memset(context, 0, sizeof *context);
context->flags = SET_PORT_GEN_ALL_VALID;
context->mtu = cpu_to_be16(mtu);
context->pptx = (pptx * (!pfctx)) << 7;
context->pfctx = pfctx;
context->pprx = (pprx * (!pfcrx)) << 7;
context->pfcrx = pfcrx;
in_mod = MLX4_SET_PORT_GENERAL << 8 | port;
err = mlx4_cmd(dev, mailbox->dma, in_mod, 1, MLX4_CMD_SET_PORT,
MLX4_CMD_TIME_CLASS_B);
mlx4_free_cmd_mailbox(dev, mailbox);
return err;
}
int mlx4_SET_PORT_qpn_calc(struct mlx4_dev *dev, u8 port, u32 base_qpn,
u8 promisc)
{
struct mlx4_cmd_mailbox *mailbox;
struct mlx4_set_port_rqp_calc_context *context;
int err;
u32 in_mod;
mailbox = mlx4_alloc_cmd_mailbox(dev);
if (IS_ERR(mailbox))
return PTR_ERR(mailbox);
context = mailbox->buf;
memset(context, 0, sizeof *context);
context->base_qpn = cpu_to_be32(base_qpn);
context->promisc = cpu_to_be32(promisc << SET_PORT_PROMISC_SHIFT | base_qpn);
context->mcast = cpu_to_be32(1 << SET_PORT_PROMISC_SHIFT | base_qpn);
context->intra_no_vlan = 0;
context->no_vlan = MLX4_NO_VLAN_IDX;
context->intra_vlan_miss = 0;
context->vlan_miss = MLX4_VLAN_MISS_IDX;
in_mod = MLX4_SET_PORT_RQP_CALC << 8 | port;
err = mlx4_cmd(dev, mailbox->dma, in_mod, 1, MLX4_CMD_SET_PORT,
MLX4_CMD_TIME_CLASS_B);
mlx4_free_cmd_mailbox(dev, mailbox);
return err;
}
int mlx4_en_DUMP_ETH_STATS(struct mlx4_en_dev *mdev, u8 port, u8 reset)
{
struct mlx4_en_stat_out_mbox *mlx4_en_stats;
struct mlx4_en_priv *priv = netdev_priv(mdev->pndev[port]);
struct net_device_stats *stats = &priv->stats;
struct mlx4_cmd_mailbox *mailbox;
u64 in_mod = reset << 8 | port;
int err;
mailbox = mlx4_alloc_cmd_mailbox(mdev->dev);
if (IS_ERR(mailbox))
return PTR_ERR(mailbox);
memset(mailbox->buf, 0, sizeof(*mlx4_en_stats));
err = mlx4_cmd_box(mdev->dev, 0, mailbox->dma, in_mod, 0,
MLX4_CMD_DUMP_ETH_STATS, MLX4_CMD_TIME_CLASS_B);
if (err)
goto out;
mlx4_en_stats = mailbox->buf;
spin_lock_bh(&priv->stats_lock);
stats->rx_packets = be32_to_cpu(mlx4_en_stats->RTOTFRMS) -
be32_to_cpu(mlx4_en_stats->RDROP);
stats->tx_packets = be64_to_cpu(mlx4_en_stats->TTOT_prio_0) +
be64_to_cpu(mlx4_en_stats->TTOT_prio_1) +
be64_to_cpu(mlx4_en_stats->TTOT_prio_2) +
be64_to_cpu(mlx4_en_stats->TTOT_prio_3) +
be64_to_cpu(mlx4_en_stats->TTOT_prio_4) +
be64_to_cpu(mlx4_en_stats->TTOT_prio_5) +
be64_to_cpu(mlx4_en_stats->TTOT_prio_6) +
be64_to_cpu(mlx4_en_stats->TTOT_prio_7) +
be64_to_cpu(mlx4_en_stats->TTOT_novlan) +
be64_to_cpu(mlx4_en_stats->TTOT_loopbk);
stats->rx_bytes = be64_to_cpu(mlx4_en_stats->ROCT_prio_0) +
be64_to_cpu(mlx4_en_stats->ROCT_prio_1) +
be64_to_cpu(mlx4_en_stats->ROCT_prio_2) +
be64_to_cpu(mlx4_en_stats->ROCT_prio_3) +
be64_to_cpu(mlx4_en_stats->ROCT_prio_4) +
be64_to_cpu(mlx4_en_stats->ROCT_prio_5) +
be64_to_cpu(mlx4_en_stats->ROCT_prio_6) +
be64_to_cpu(mlx4_en_stats->ROCT_prio_7) +
be64_to_cpu(mlx4_en_stats->ROCT_novlan);
stats->tx_bytes = be64_to_cpu(mlx4_en_stats->TTTLOCT_prio_0) +
be64_to_cpu(mlx4_en_stats->TTTLOCT_prio_1) +
be64_to_cpu(mlx4_en_stats->TTTLOCT_prio_2) +
be64_to_cpu(mlx4_en_stats->TTTLOCT_prio_3) +
be64_to_cpu(mlx4_en_stats->TTTLOCT_prio_4) +
be64_to_cpu(mlx4_en_stats->TTTLOCT_prio_5) +
be64_to_cpu(mlx4_en_stats->TTTLOCT_prio_6) +
be64_to_cpu(mlx4_en_stats->TTTLOCT_prio_7) +
be64_to_cpu(mlx4_en_stats->TTTLOCT_novlan) +
be64_to_cpu(mlx4_en_stats->TTTLOCT_loopbk);
stats->rx_errors = be64_to_cpu(mlx4_en_stats->PCS) +
be32_to_cpu(mlx4_en_stats->RdropLength) +
be32_to_cpu(mlx4_en_stats->RJBBR) +
be32_to_cpu(mlx4_en_stats->RCRC) +
be32_to_cpu(mlx4_en_stats->RRUNT);
stats->tx_errors = be32_to_cpu(mlx4_en_stats->TDROP);
stats->multicast = be64_to_cpu(mlx4_en_stats->MCAST_prio_0) +
be64_to_cpu(mlx4_en_stats->MCAST_prio_1) +
be64_to_cpu(mlx4_en_stats->MCAST_prio_2) +
be64_to_cpu(mlx4_en_stats->MCAST_prio_3) +
be64_to_cpu(mlx4_en_stats->MCAST_prio_4) +
be64_to_cpu(mlx4_en_stats->MCAST_prio_5) +
be64_to_cpu(mlx4_en_stats->MCAST_prio_6) +
be64_to_cpu(mlx4_en_stats->MCAST_prio_7) +
be64_to_cpu(mlx4_en_stats->MCAST_novlan);
stats->collisions = 0;
stats->rx_length_errors = be32_to_cpu(mlx4_en_stats->RdropLength);
stats->rx_over_errors = be32_to_cpu(mlx4_en_stats->RdropOvflw);
stats->rx_crc_errors = be32_to_cpu(mlx4_en_stats->RCRC);
stats->rx_frame_errors = 0;
stats->rx_fifo_errors = be32_to_cpu(mlx4_en_stats->RdropOvflw);
stats->rx_missed_errors = be32_to_cpu(mlx4_en_stats->RdropOvflw);
stats->tx_aborted_errors = 0;
stats->tx_carrier_errors = 0;
stats->tx_fifo_errors = 0;
stats->tx_heartbeat_errors = 0;
stats->tx_window_errors = 0;
priv->pkstats.broadcast =
be64_to_cpu(mlx4_en_stats->RBCAST_prio_0) +
be64_to_cpu(mlx4_en_stats->RBCAST_prio_1) +
be64_to_cpu(mlx4_en_stats->RBCAST_prio_2) +
be64_to_cpu(mlx4_en_stats->RBCAST_prio_3) +
be64_to_cpu(mlx4_en_stats->RBCAST_prio_4) +
be64_to_cpu(mlx4_en_stats->RBCAST_prio_5) +
be64_to_cpu(mlx4_en_stats->RBCAST_prio_6) +
be64_to_cpu(mlx4_en_stats->RBCAST_prio_7) +
be64_to_cpu(mlx4_en_stats->RBCAST_novlan);
priv->pkstats.rx_prio[0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_0);
priv->pkstats.rx_prio[1] = be64_to_cpu(mlx4_en_stats->RTOT_prio_1);
priv->pkstats.rx_prio[2] = be64_to_cpu(mlx4_en_stats->RTOT_prio_2);
priv->pkstats.rx_prio[3] = be64_to_cpu(mlx4_en_stats->RTOT_prio_3);
priv->pkstats.rx_prio[4] = be64_to_cpu(mlx4_en_stats->RTOT_prio_4);
priv->pkstats.rx_prio[5] = be64_to_cpu(mlx4_en_stats->RTOT_prio_5);
priv->pkstats.rx_prio[6] = be64_to_cpu(mlx4_en_stats->RTOT_prio_6);
priv->pkstats.rx_prio[7] = be64_to_cpu(mlx4_en_stats->RTOT_prio_7);
priv->pkstats.tx_prio[0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_0);
priv->pkstats.tx_prio[1] = be64_to_cpu(mlx4_en_stats->TTOT_prio_1);
priv->pkstats.tx_prio[2] = be64_to_cpu(mlx4_en_stats->TTOT_prio_2);
priv->pkstats.tx_prio[3] = be64_to_cpu(mlx4_en_stats->TTOT_prio_3);
priv->pkstats.tx_prio[4] = be64_to_cpu(mlx4_en_stats->TTOT_prio_4);
priv->pkstats.tx_prio[5] = be64_to_cpu(mlx4_en_stats->TTOT_prio_5);
priv->pkstats.tx_prio[6] = be64_to_cpu(mlx4_en_stats->TTOT_prio_6);
priv->pkstats.tx_prio[7] = be64_to_cpu(mlx4_en_stats->TTOT_prio_7);
spin_unlock_bh(&priv->stats_lock);
out:
mlx4_free_cmd_mailbox(mdev->dev, mailbox);
return err;
}
drivers/net/mlx4/en_port.h 0 → 100644
View file @ 724bdd09
/*
* Copyright (c) 2007 Mellanox Technologies. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
*/
#ifndef _MLX4_EN_PORT_H_
#define _MLX4_EN_PORT_H_
#define SET_PORT_GEN_ALL_VALID 0x7
#define SET_PORT_PROMISC_SHIFT 31
enum {
MLX4_CMD_SET_VLAN_FLTR = 0x47,
MLX4_CMD_SET_MCAST_FLTR = 0x48,
MLX4_CMD_DUMP_ETH_STATS = 0x49,
};
struct mlx4_set_port_general_context {
u8 reserved[3];
u8 flags;
u16 reserved2;
__be16 mtu;
u8 pptx;
u8 pfctx;
u16 reserved3;
u8 pprx;
u8 pfcrx;
u16 reserved4;
};
struct mlx4_set_port_rqp_calc_context {
__be32 base_qpn;
__be32 flags;
u8 reserved[3];
u8 mac_miss;
u8 intra_no_vlan;
u8 no_vlan;
u8 intra_vlan_miss;
u8 vlan_miss;
u8 reserved2[3];
u8 no_vlan_prio;
__be32 promisc;
__be32 mcast;
};
#define VLAN_FLTR_SIZE 128
struct mlx4_set_vlan_fltr_mbox {
__be32 entry[VLAN_FLTR_SIZE];
};
enum {
MLX4_MCAST_CONFIG = 0,
MLX4_MCAST_DISABLE = 1,
MLX4_MCAST_ENABLE = 2,
};
struct mlx4_en_stat_out_mbox {
/* Received frames with a length of 64 octets */
__be64 R64_prio_0;
__be64 R64_prio_1;
__be64 R64_prio_2;
__be64 R64_prio_3;
__be64 R64_prio_4;
__be64 R64_prio_5;
__be64 R64_prio_6;
__be64 R64_prio_7;
__be64 R64_novlan;
/* Received frames with a length of 127 octets */
__be64 R127_prio_0;
__be64 R127_prio_1;
__be64 R127_prio_2;
__be64 R127_prio_3;
__be64 R127_prio_4;
__be64 R127_prio_5;
__be64 R127_prio_6;
__be64 R127_prio_7;
__be64 R127_novlan;
/* Received frames with a length of 255 octets */
__be64 R255_prio_0;
__be64 R255_prio_1;
__be64 R255_prio_2;
__be64 R255_prio_3;
__be64 R255_prio_4;
__be64 R255_prio_5;
__be64 R255_prio_6;
__be64 R255_prio_7;
__be64 R255_novlan;
/* Received frames with a length of 511 octets */
__be64 R511_prio_0;
__be64 R511_prio_1;
__be64 R511_prio_2;
__be64 R511_prio_3;
__be64 R511_prio_4;
__be64 R511_prio_5;
__be64 R511_prio_6;
__be64 R511_prio_7;
__be64 R511_novlan;
/* Received frames with a length of 1023 octets */
__be64 R1023_prio_0;
__be64 R1023_prio_1;
__be64 R1023_prio_2;
__be64 R1023_prio_3;
__be64 R1023_prio_4;
__be64 R1023_prio_5;
__be64 R1023_prio_6;
__be64 R1023_prio_7;
__be64 R1023_novlan;
/* Received frames with a length of 1518 octets */
__be64 R1518_prio_0;
__be64 R1518_prio_1;
__be64 R1518_prio_2;
__be64 R1518_prio_3;
__be64 R1518_prio_4;
__be64 R1518_prio_5;
__be64 R1518_prio_6;
__be64 R1518_prio_7;
__be64 R1518_novlan;
/* Received frames with a length of 1522 octets */
__be64 R1522_prio_0;
__be64 R1522_prio_1;
__be64 R1522_prio_2;
__be64 R1522_prio_3;
__be64 R1522_prio_4;
__be64 R1522_prio_5;
__be64 R1522_prio_6;
__be64 R1522_prio_7;
__be64 R1522_novlan;
/* Received frames with a length of 1548 octets */
__be64 R1548_prio_0;
__be64 R1548_prio_1;
__be64 R1548_prio_2;
__be64 R1548_prio_3;
__be64 R1548_prio_4;
__be64 R1548_prio_5;
__be64 R1548_prio_6;
__be64 R1548_prio_7;
__be64 R1548_novlan;
/* Received frames with a length of 1548 < octets < MTU */
__be64 R2MTU_prio_0;
__be64 R2MTU_prio_1;
__be64 R2MTU_prio_2;
__be64 R2MTU_prio_3;
__be64 R2MTU_prio_4;
__be64 R2MTU_prio_5;
__be64 R2MTU_prio_6;
__be64 R2MTU_prio_7;
__be64 R2MTU_novlan;
/* Received frames with a length of MTU< octets and good CRC */
__be64 RGIANT_prio_0;
__be64 RGIANT_prio_1;
__be64 RGIANT_prio_2;
__be64 RGIANT_prio_3;
__be64 RGIANT_prio_4;
__be64 RGIANT_prio_5;
__be64 RGIANT_prio_6;
__be64 RGIANT_prio_7;
__be64 RGIANT_novlan;
/* Received broadcast frames with good CRC */
__be64 RBCAST_prio_0;
__be64 RBCAST_prio_1;
__be64 RBCAST_prio_2;
__be64 RBCAST_prio_3;
__be64 RBCAST_prio_4;
__be64 RBCAST_prio_5;
__be64 RBCAST_prio_6;
__be64 RBCAST_prio_7;
__be64 RBCAST_novlan;
/* Received multicast frames with good CRC */
__be64 MCAST_prio_0;
__be64 MCAST_prio_1;
__be64 MCAST_prio_2;
__be64 MCAST_prio_3;
__be64 MCAST_prio_4;
__be64 MCAST_prio_5;
__be64 MCAST_prio_6;
__be64 MCAST_prio_7;
__be64 MCAST_novlan;
/* Received unicast not short or GIANT frames with good CRC */
__be64 RTOTG_prio_0;
__be64 RTOTG_prio_1;
__be64 RTOTG_prio_2;
__be64 RTOTG_prio_3;
__be64 RTOTG_prio_4;
__be64 RTOTG_prio_5;
__be64 RTOTG_prio_6;
__be64 RTOTG_prio_7;
__be64 RTOTG_novlan;
/* Count of total octets of received frames, includes framing characters */
__be64 RTTLOCT_prio_0;
/* Count of total octets of received frames, not including framing
characters */
__be64 RTTLOCT_NOFRM_prio_0;
/* Count of Total number of octets received
(only for frames without errors) */
__be64 ROCT_prio_0;
__be64 RTTLOCT_prio_1;
__be64 RTTLOCT_NOFRM_prio_1;
__be64 ROCT_prio_1;
__be64 RTTLOCT_prio_2;
__be64 RTTLOCT_NOFRM_prio_2;
__be64 ROCT_prio_2;
__be64 RTTLOCT_prio_3;
__be64 RTTLOCT_NOFRM_prio_3;
__be64 ROCT_prio_3;
__be64 RTTLOCT_prio_4;
__be64 RTTLOCT_NOFRM_prio_4;
__be64 ROCT_prio_4;
__be64 RTTLOCT_prio_5;
__be64 RTTLOCT_NOFRM_prio_5;
__be64 ROCT_prio_5;
__be64 RTTLOCT_prio_6;
__be64 RTTLOCT_NOFRM_prio_6;
__be64 ROCT_prio_6;
__be64 RTTLOCT_prio_7;
__be64 RTTLOCT_NOFRM_prio_7;
__be64 ROCT_prio_7;
__be64 RTTLOCT_novlan;
__be64 RTTLOCT_NOFRM_novlan;
__be64 ROCT_novlan;
/* Count of Total received frames including bad frames */
__be64 RTOT_prio_0;
/* Count of Total number of received frames with 802.1Q encapsulation */
__be64 R1Q_prio_0;
__be64 reserved1;
__be64 RTOT_prio_1;
__be64 R1Q_prio_1;
__be64 reserved2;
__be64 RTOT_prio_2;
__be64 R1Q_prio_2;
__be64 reserved3;
__be64 RTOT_prio_3;
__be64 R1Q_prio_3;
__be64 reserved4;
__be64 RTOT_prio_4;
__be64 R1Q_prio_4;
__be64 reserved5;
__be64 RTOT_prio_5;
__be64 R1Q_prio_5;
__be64 reserved6;
__be64 RTOT_prio_6;
__be64 R1Q_prio_6;
__be64 reserved7;
__be64 RTOT_prio_7;
__be64 R1Q_prio_7;
__be64 reserved8;
__be64 RTOT_novlan;
__be64 R1Q_novlan;
__be64 reserved9;
/* Total number of Successfully Received Control Frames */
__be64 RCNTL;
__be64 reserved10;
__be64 reserved11;
__be64 reserved12;
/* Count of received frames with a length/type field value between 46
(42 for VLANtagged frames) and 1500 (also 1500 for VLAN-tagged frames),
inclusive */
__be64 RInRangeLengthErr;
/* Count of received frames with length/type field between 1501 and 1535
decimal, inclusive */
__be64 ROutRangeLengthErr;
/* Count of received frames that are longer than max allowed size for
802.3 frames (1518/1522) */
__be64 RFrmTooLong;
/* Count frames received with PCS error */
__be64 PCS;
/* Transmit frames with a length of 64 octets */
__be64 T64_prio_0;
__be64 T64_prio_1;
__be64 T64_prio_2;
__be64 T64_prio_3;
__be64 T64_prio_4;
__be64 T64_prio_5;
__be64 T64_prio_6;
__be64 T64_prio_7;
__be64 T64_novlan;
__be64 T64_loopbk;
/* Transmit frames with a length of 65 to 127 octets. */
__be64 T127_prio_0;
__be64 T127_prio_1;
__be64 T127_prio_2;
__be64 T127_prio_3;
__be64 T127_prio_4;
__be64 T127_prio_5;
__be64 T127_prio_6;
__be64 T127_prio_7;
__be64 T127_novlan;
__be64 T127_loopbk;
/* Transmit frames with a length of 128 to 255 octets */
__be64 T255_prio_0;
__be64 T255_prio_1;
__be64 T255_prio_2;
__be64 T255_prio_3;
__be64 T255_prio_4;
__be64 T255_prio_5;
__be64 T255_prio_6;
__be64 T255_prio_7;
__be64 T255_novlan;
__be64 T255_loopbk;
/* Transmit frames with a length of 256 to 511 octets */
__be64 T511_prio_0;
__be64 T511_prio_1;
__be64 T511_prio_2;
__be64 T511_prio_3;
__be64 T511_prio_4;
__be64 T511_prio_5;
__be64 T511_prio_6;
__be64 T511_prio_7;
__be64 T511_novlan;
__be64 T511_loopbk;
/* Transmit frames with a length of 512 to 1023 octets */
__be64 T1023_prio_0;
__be64 T1023_prio_1;
__be64 T1023_prio_2;
__be64 T1023_prio_3;
__be64 T1023_prio_4;
__be64 T1023_prio_5;
__be64 T1023_prio_6;
__be64 T1023_prio_7;
__be64 T1023_novlan;
__be64 T1023_loopbk;
/* Transmit frames with a length of 1024 to 1518 octets */
__be64 T1518_prio_0;
__be64 T1518_prio_1;
__be64 T1518_prio_2;
__be64 T1518_prio_3;
__be64 T1518_prio_4;
__be64 T1518_prio_5;
__be64 T1518_prio_6;
__be64 T1518_prio_7;
__be64 T1518_novlan;
__be64 T1518_loopbk;
/* Counts transmit frames with a length of 1519 to 1522 bytes */
__be64 T1522_prio_0;
__be64 T1522_prio_1;
__be64 T1522_prio_2;
__be64 T1522_prio_3;
__be64 T1522_prio_4;
__be64 T1522_prio_5;
__be64 T1522_prio_6;
__be64 T1522_prio_7;
__be64 T1522_novlan;
__be64 T1522_loopbk;
/* Transmit frames with a length of 1523 to 1548 octets */
__be64 T1548_prio_0;
__be64 T1548_prio_1;
__be64 T1548_prio_2;
__be64 T1548_prio_3;
__be64 T1548_prio_4;
__be64 T1548_prio_5;
__be64 T1548_prio_6;
__be64 T1548_prio_7;
__be64 T1548_novlan;
__be64 T1548_loopbk;
/* Counts transmit frames with a length of 1549 to MTU bytes */
__be64 T2MTU_prio_0;
__be64 T2MTU_prio_1;
__be64 T2MTU_prio_2;
__be64 T2MTU_prio_3;
__be64 T2MTU_prio_4;
__be64 T2MTU_prio_5;
__be64 T2MTU_prio_6;
__be64 T2MTU_prio_7;
__be64 T2MTU_novlan;
__be64 T2MTU_loopbk;
/* Transmit frames with a length greater than MTU octets and a good CRC. */
__be64 TGIANT_prio_0;
__be64 TGIANT_prio_1;
__be64 TGIANT_prio_2;
__be64 TGIANT_prio_3;
__be64 TGIANT_prio_4;
__be64 TGIANT_prio_5;
__be64 TGIANT_prio_6;
__be64 TGIANT_prio_7;
__be64 TGIANT_novlan;
__be64 TGIANT_loopbk;
/* Transmit broadcast frames with a good CRC */
__be64 TBCAST_prio_0;
__be64 TBCAST_prio_1;
__be64 TBCAST_prio_2;
__be64 TBCAST_prio_3;
__be64 TBCAST_prio_4;
__be64 TBCAST_prio_5;
__be64 TBCAST_prio_6;
__be64 TBCAST_prio_7;
__be64 TBCAST_novlan;
__be64 TBCAST_loopbk;
/* Transmit multicast frames with a good CRC */
__be64 TMCAST_prio_0;
__be64 TMCAST_prio_1;
__be64 TMCAST_prio_2;
__be64 TMCAST_prio_3;
__be64 TMCAST_prio_4;
__be64 TMCAST_prio_5;
__be64 TMCAST_prio_6;
__be64 TMCAST_prio_7;
__be64 TMCAST_novlan;
__be64 TMCAST_loopbk;
/* Transmit good frames that are neither broadcast nor multicast */
__be64 TTOTG_prio_0;
__be64 TTOTG_prio_1;
__be64 TTOTG_prio_2;
__be64 TTOTG_prio_3;
__be64 TTOTG_prio_4;
__be64 TTOTG_prio_5;
__be64 TTOTG_prio_6;
__be64 TTOTG_prio_7;
__be64 TTOTG_novlan;
__be64 TTOTG_loopbk;
/* total octets of transmitted frames, including framing characters */
__be64 TTTLOCT_prio_0;
/* total octets of transmitted frames, not including framing characters */
__be64 TTTLOCT_NOFRM_prio_0;
/* ifOutOctets */
__be64 TOCT_prio_0;
__be64 TTTLOCT_prio_1;
__be64 TTTLOCT_NOFRM_prio_1;
__be64 TOCT_prio_1;
__be64 TTTLOCT_prio_2;
__be64 TTTLOCT_NOFRM_prio_2;
__be64 TOCT_prio_2;
__be64 TTTLOCT_prio_3;
__be64 TTTLOCT_NOFRM_prio_3;
__be64 TOCT_prio_3;
__be64 TTTLOCT_prio_4;
__be64 TTTLOCT_NOFRM_prio_4;
__be64 TOCT_prio_4;
__be64 TTTLOCT_prio_5;
__be64 TTTLOCT_NOFRM_prio_5;
__be64 TOCT_prio_5;
__be64 TTTLOCT_prio_6;
__be64 TTTLOCT_NOFRM_prio_6;
__be64 TOCT_prio_6;
__be64 TTTLOCT_prio_7;
__be64 TTTLOCT_NOFRM_prio_7;
__be64 TOCT_prio_7;
__be64 TTTLOCT_novlan;
__be64 TTTLOCT_NOFRM_novlan;
__be64 TOCT_novlan;
__be64 TTTLOCT_loopbk;
__be64 TTTLOCT_NOFRM_loopbk;
__be64 TOCT_loopbk;
/* Total frames transmitted with a good CRC that are not aborted */
__be64 TTOT_prio_0;
/* Total number of frames transmitted with 802.1Q encapsulation */
__be64 T1Q_prio_0;
__be64 reserved13;
__be64 TTOT_prio_1;
__be64 T1Q_prio_1;
__be64 reserved14;
__be64 TTOT_prio_2;
__be64 T1Q_prio_2;
__be64 reserved15;
__be64 TTOT_prio_3;
__be64 T1Q_prio_3;
__be64 reserved16;
__be64 TTOT_prio_4;
__be64 T1Q_prio_4;
__be64 reserved17;
__be64 TTOT_prio_5;
__be64 T1Q_prio_5;
__be64 reserved18;
__be64 TTOT_prio_6;
__be64 T1Q_prio_6;
__be64 reserved19;
__be64 TTOT_prio_7;
__be64 T1Q_prio_7;
__be64 reserved20;
__be64 TTOT_novlan;
__be64 T1Q_novlan;
__be64 reserved21;
__be64 TTOT_loopbk;
__be64 T1Q_loopbk;
__be64 reserved22;
/* Received frames with a length greater than MTU octets and a bad CRC */
__be32 RJBBR;
/* Received frames with a bad CRC that are not runts, jabbers,
or alignment errors */
__be32 RCRC;
/* Received frames with SFD with a length of less than 64 octets and a
bad CRC */
__be32 RRUNT;
/* Received frames with a length less than 64 octets and a good CRC */
__be32 RSHORT;
/* Total Number of Received Packets Dropped */
__be32 RDROP;
/* Drop due to overflow */
__be32 RdropOvflw;
/* Drop due to overflow */
__be32 RdropLength;
/* Total of good frames. Does not include frames received with
frame-too-long, FCS, or length errors */
__be32 RTOTFRMS;
/* Total dropped Xmited packets */
__be32 TDROP;
};
#endif
drivers/net/mlx4/en_resources.c 0 → 100644
View file @ 724bdd09
/*
* Copyright (c) 2007 Mellanox Technologies. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
*/
#include <linux/vmalloc.h>
#include <linux/mlx4/qp.h>
#include "mlx4_en.h"
void mlx4_en_fill_qp_context(struct mlx4_en_priv *priv, int size, int stride,
int is_tx, int rss, int qpn, int cqn, int srqn,
struct mlx4_qp_context *context)
{
struct mlx4_en_dev *mdev = priv->mdev;
memset(context, 0, sizeof *context);
context->flags = cpu_to_be32(7 << 16 | rss << 13);
context->pd = cpu_to_be32(mdev->priv_pdn);
context->mtu_msgmax = 0xff;
context->rq_size_stride = 0;
if (is_tx)
context->sq_size_stride = ilog2(size) << 3 | (ilog2(stride) - 4);
else
context->sq_size_stride = 1;
context->usr_page = cpu_to_be32(mdev->priv_uar.index);
context->local_qpn = cpu_to_be32(qpn);
context->pri_path.ackto = 1 & 0x07;
context->pri_path.sched_queue = 0x83 | (priv->port - 1) << 6;
context->pri_path.counter_index = 0xff;
context->cqn_send = cpu_to_be32(cqn);
context->cqn_recv = cpu_to_be32(cqn);
context->db_rec_addr = cpu_to_be64(priv->res.db.dma << 2);
if (!rss)
context->srqn = cpu_to_be32(MLX4_EN_USE_SRQ | srqn);
}
int mlx4_en_map_buffer(struct mlx4_buf *buf)
{
struct page **pages;
int i;
if (BITS_PER_LONG == 64 || buf->nbufs == 1)
return 0;
pages = kmalloc(sizeof *pages * buf->nbufs, GFP_KERNEL);
if (!pages)
return -ENOMEM;
for (i = 0; i < buf->nbufs; ++i)
pages[i] = virt_to_page(buf->page_list[i].buf);
buf->direct.buf = vmap(pages, buf->nbufs, VM_MAP, PAGE_KERNEL);
kfree(pages);
if (!buf->direct.buf)
return -ENOMEM;
return 0;
}
void mlx4_en_unmap_buffer(struct mlx4_buf *buf)
{
if (BITS_PER_LONG == 64 || buf->nbufs == 1)
return;
vunmap(buf->direct.buf);
}
drivers/net/mlx4/en_rx.c 0 → 100644
View file @ 724bdd09
/*
* Copyright (c) 2007 Mellanox Technologies. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
*/
#include <linux/mlx4/cq.h>
#include <linux/mlx4/qp.h>
#include <linux/skbuff.h>
#include <linux/if_ether.h>
#include <linux/if_vlan.h>
#include <linux/vmalloc.h>
#include "mlx4_en.h"
static void *get_wqe(struct mlx4_en_rx_ring *ring, int n)
{
int offset = n << ring->srq.wqe_shift;
return ring->buf + offset;
}
static void mlx4_en_srq_event(struct mlx4_srq *srq, enum mlx4_event type)
{
return;
}
static int mlx4_en_get_frag_header(struct skb_frag_struct *frags, void **mac_hdr,
void **ip_hdr, void **tcpudp_hdr,
u64 *hdr_flags, void *priv)
{
*mac_hdr = page_address(frags->page) + frags->page_offset;
*ip_hdr = *mac_hdr + ETH_HLEN;
*tcpudp_hdr = (struct tcphdr *)(*ip_hdr + sizeof(struct iphdr));
*hdr_flags = LRO_IPV4 | LRO_TCP;
return 0;
}
static int mlx4_en_alloc_frag(struct mlx4_en_priv *priv,
struct mlx4_en_rx_desc *rx_desc,
struct skb_frag_struct *skb_frags,
struct mlx4_en_rx_alloc *ring_alloc,
int i)
{
struct mlx4_en_dev *mdev = priv->mdev;
struct mlx4_en_frag_info *frag_info = &priv->frag_info[i];
struct mlx4_en_rx_alloc *page_alloc = &ring_alloc[i];
struct page *page;
dma_addr_t dma;
if (page_alloc->offset == frag_info->last_offset) {
/* Allocate new page */
page = alloc_pages(GFP_ATOMIC | __GFP_COMP, MLX4_EN_ALLOC_ORDER);
if (!page)
return -ENOMEM;
skb_frags[i].page = page_alloc->page;
skb_frags[i].page_offset = page_alloc->offset;
page_alloc->page = page;
page_alloc->offset = frag_info->frag_align;
} else {
page = page_alloc->page;
get_page(page);
skb_frags[i].page = page;
skb_frags[i].page_offset = page_alloc->offset;
page_alloc->offset += frag_info->frag_stride;
}
dma = pci_map_single(mdev->pdev, page_address(skb_frags[i].page) +
skb_frags[i].page_offset, frag_info->frag_size,
PCI_DMA_FROMDEVICE);
rx_desc->data[i].addr = cpu_to_be64(dma);
return 0;
}
static int mlx4_en_init_allocator(struct mlx4_en_priv *priv,
struct mlx4_en_rx_ring *ring)
{
struct mlx4_en_rx_alloc *page_alloc;
int i;
for (i = 0; i < priv->num_frags; i++) {
page_alloc = &ring->page_alloc[i];
page_alloc->page = alloc_pages(GFP_ATOMIC | __GFP_COMP,
MLX4_EN_ALLOC_ORDER);
if (!page_alloc->page)
goto out;
page_alloc->offset = priv->frag_info[i].frag_align;
mlx4_dbg(DRV, priv, "Initialized allocator:%d with page:%p\n",
i, page_alloc->page);
}
return 0;
out:
while (i--) {
page_alloc = &ring->page_alloc[i];
put_page(page_alloc->page);
page_alloc->page = NULL;
}
return -ENOMEM;
}
static void mlx4_en_destroy_allocator(struct mlx4_en_priv *priv,
struct mlx4_en_rx_ring *ring)
{
struct mlx4_en_rx_alloc *page_alloc;
int i;
for (i = 0; i < priv->num_frags; i++) {
page_alloc = &ring->page_alloc[i];
mlx4_dbg(DRV, priv, "Freeing allocator:%d count:%d\n",
i, page_count(page_alloc->page));
put_page(page_alloc->page);
page_alloc->page = NULL;
}
}
static void mlx4_en_init_rx_desc(struct mlx4_en_priv *priv,
struct mlx4_en_rx_ring *ring, int index)
{
struct mlx4_en_rx_desc *rx_desc = ring->buf + ring->stride * index;
struct skb_frag_struct *skb_frags = ring->rx_info +
(index << priv->log_rx_info);
int possible_frags;
int i;
/* Pre-link descriptor */
rx_desc->next.next_wqe_index = cpu_to_be16((index + 1) & ring->size_mask);
/* Set size and memtype fields */
for (i = 0; i < priv->num_frags; i++) {
skb_frags[i].size = priv->frag_info[i].frag_size;
rx_desc->data[i].byte_count =
cpu_to_be32(priv->frag_info[i].frag_size);
rx_desc->data[i].lkey = cpu_to_be32(priv->mdev->mr.key);
}
/* If the number of used fragments does not fill up the ring stride,
* remaining (unused) fragments must be padded with null address/size
* and a special memory key */
possible_frags = (ring->stride - sizeof(struct mlx4_en_rx_desc)) / DS_SIZE;
for (i = priv->num_frags; i < possible_frags; i++) {
rx_desc->data[i].byte_count = 0;
rx_desc->data[i].lkey = cpu_to_be32(MLX4_EN_MEMTYPE_PAD);
rx_desc->data[i].addr = 0;
}
}
static int mlx4_en_prepare_rx_desc(struct mlx4_en_priv *priv,
struct mlx4_en_rx_ring *ring, int index)
{
struct mlx4_en_rx_desc *rx_desc = ring->buf + (index * ring->stride);
struct skb_frag_struct *skb_frags = ring->rx_info +
(index << priv->log_rx_info);
int i;
for (i = 0; i < priv->num_frags; i++)
if (mlx4_en_alloc_frag(priv, rx_desc, skb_frags, ring->page_alloc, i))
goto err;
return 0;
err:
while (i--)
put_page(skb_frags[i].page);
return -ENOMEM;
}
static inline void mlx4_en_update_rx_prod_db(struct mlx4_en_rx_ring *ring)
{
*ring->wqres.db.db = cpu_to_be32(ring->prod & 0xffff);
}
static int mlx4_en_fill_rx_buffers(struct mlx4_en_priv *priv)
{
struct mlx4_en_dev *mdev = priv->mdev;
struct mlx4_en_rx_ring *ring;
int ring_ind;
int buf_ind;
for (buf_ind = 0; buf_ind < priv->prof->rx_ring_size; buf_ind++) {
for (ring_ind = 0; ring_ind < priv->rx_ring_num; ring_ind++) {
ring = &priv->rx_ring[ring_ind];
if (mlx4_en_prepare_rx_desc(priv, ring,
ring->actual_size)) {
if (ring->actual_size < MLX4_EN_MIN_RX_SIZE) {
mlx4_err(mdev, "Failed to allocate "
"enough rx buffers\n");
return -ENOMEM;
} else {
if (netif_msg_rx_err(priv))
mlx4_warn(mdev,
"Only %d buffers allocated\n",
ring->actual_size);
goto out;
}
}
ring->actual_size++;
ring->prod++;
}
}
out:
return 0;
}
static int mlx4_en_fill_rx_buf(struct net_device *dev,
struct mlx4_en_rx_ring *ring)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
int num = 0;
int err;
while ((u32) (ring->prod - ring->cons) < ring->actual_size) {
err = mlx4_en_prepare_rx_desc(priv, ring, ring->prod &
ring->size_mask);
if (err) {
if (netif_msg_rx_err(priv))
mlx4_warn(priv->mdev,
"Failed preparing rx descriptor\n");
priv->port_stats.rx_alloc_failed++;
break;
}
++num;
++ring->prod;
}
if ((u32) (ring->prod - ring->cons) == ring->size)
ring->full = 1;
return num;
}
static void mlx4_en_free_rx_buf(struct mlx4_en_priv *priv,
struct mlx4_en_rx_ring *ring)
{
struct mlx4_en_dev *mdev = priv->mdev;
struct skb_frag_struct *skb_frags;
struct mlx4_en_rx_desc *rx_desc;
dma_addr_t dma;
int index;
int nr;
mlx4_dbg(DRV, priv, "Freeing Rx buf - cons:%d prod:%d\n",
ring->cons, ring->prod);
/* Unmap and free Rx buffers */
BUG_ON((u32) (ring->prod - ring->cons) > ring->size);
while (ring->cons != ring->prod) {
index = ring->cons & ring->size_mask;
rx_desc = ring->buf + (index << ring->log_stride);
skb_frags = ring->rx_info + (index << priv->log_rx_info);
mlx4_dbg(DRV, priv, "Processing descriptor:%d\n", index);
for (nr = 0; nr < priv->num_frags; nr++) {
mlx4_dbg(DRV, priv, "Freeing fragment:%d\n", nr);
dma = be64_to_cpu(rx_desc->data[nr].addr);
mlx4_dbg(DRV, priv, "Unmaping buffer at dma:0x%llx\n", (u64) dma);
pci_unmap_single(mdev->pdev, dma, skb_frags[nr].size,
PCI_DMA_FROMDEVICE);
put_page(skb_frags[nr].page);
}
++ring->cons;
}
}
void mlx4_en_rx_refill(struct work_struct *work)
{
struct delayed_work *delay = container_of(work, struct delayed_work, work);
struct mlx4_en_priv *priv = container_of(delay, struct mlx4_en_priv,
refill_task);
struct mlx4_en_dev *mdev = priv->mdev;
struct net_device *dev = priv->dev;
struct mlx4_en_rx_ring *ring;
int need_refill = 0;
int i;
mutex_lock(&mdev->state_lock);
if (!mdev->device_up || !priv->port_up)
goto out;
/* We only get here if there are no receive buffers, so we can't race
* with Rx interrupts while filling buffers */
for (i = 0; i < priv->rx_ring_num; i++) {
ring = &priv->rx_ring[i];
if (ring->need_refill) {
if (mlx4_en_fill_rx_buf(dev, ring)) {
ring->need_refill = 0;
mlx4_en_update_rx_prod_db(ring);
} else
need_refill = 1;
}
}
if (need_refill)
queue_delayed_work(mdev->workqueue, &priv->refill_task, HZ);
out:
mutex_unlock(&mdev->state_lock);
}
int mlx4_en_create_rx_ring(struct mlx4_en_priv *priv,
struct mlx4_en_rx_ring *ring, u32 size, u16 stride)
{
struct mlx4_en_dev *mdev = priv->mdev;
int err;
int tmp;
/* Sanity check SRQ size before proceeding */
if (size >= mdev->dev->caps.max_srq_wqes)
return -EINVAL;
ring->prod = 0;
ring->cons = 0;
ring->size = size;
ring->size_mask = size - 1;
ring->stride = stride;
ring->log_stride = ffs(ring->stride) - 1;
ring->buf_size = ring->size * ring->stride;
tmp = size * roundup_pow_of_two(MLX4_EN_MAX_RX_FRAGS *
sizeof(struct skb_frag_struct));
ring->rx_info = vmalloc(tmp);
if (!ring->rx_info) {
mlx4_err(mdev, "Failed allocating rx_info ring\n");
return -ENOMEM;
}
mlx4_dbg(DRV, priv, "Allocated rx_info ring at addr:%p size:%d\n",
ring->rx_info, tmp);
err = mlx4_alloc_hwq_res(mdev->dev, &ring->wqres,
ring->buf_size, 2 * PAGE_SIZE);
if (err)
goto err_ring;
err = mlx4_en_map_buffer(&ring->wqres.buf);
if (err) {
mlx4_err(mdev, "Failed to map RX buffer\n");
goto err_hwq;
}
ring->buf = ring->wqres.buf.direct.buf;
/* Configure lro mngr */
memset(&ring->lro, 0, sizeof(struct net_lro_mgr));
ring->lro.dev = priv->dev;
ring->lro.features = LRO_F_NAPI;
ring->lro.frag_align_pad = NET_IP_ALIGN;
ring->lro.ip_summed = CHECKSUM_UNNECESSARY;
ring->lro.ip_summed_aggr = CHECKSUM_UNNECESSARY;
ring->lro.max_desc = mdev->profile.num_lro;
ring->lro.max_aggr = MAX_SKB_FRAGS;
ring->lro.lro_arr = kzalloc(mdev->profile.num_lro *
sizeof(struct net_lro_desc),
GFP_KERNEL);
if (!ring->lro.lro_arr) {
mlx4_err(mdev, "Failed to allocate lro array\n");
goto err_map;
}
ring->lro.get_frag_header = mlx4_en_get_frag_header;
return 0;
err_map:
mlx4_en_unmap_buffer(&ring->wqres.buf);
err_hwq:
mlx4_free_hwq_res(mdev->dev, &ring->wqres, ring->buf_size);
err_ring:
vfree(ring->rx_info);
ring->rx_info = NULL;
return err;
}
int mlx4_en_activate_rx_rings(struct mlx4_en_priv *priv)
{
struct mlx4_en_dev *mdev = priv->mdev;
struct mlx4_wqe_srq_next_seg *next;
struct mlx4_en_rx_ring *ring;
int i;
int ring_ind;
int err;
int stride = roundup_pow_of_two(sizeof(struct mlx4_en_rx_desc) +
DS_SIZE * priv->num_frags);
int max_gs = (stride - sizeof(struct mlx4_wqe_srq_next_seg)) / DS_SIZE;
for (ring_ind = 0; ring_ind < priv->rx_ring_num; ring_ind++) {
ring = &priv->rx_ring[ring_ind];
ring->prod = 0;
ring->cons = 0;
ring->actual_size = 0;
ring->cqn = priv->rx_cq[ring_ind].mcq.cqn;
ring->stride = stride;
ring->log_stride = ffs(ring->stride) - 1;
ring->buf_size = ring->size * ring->stride;
memset(ring->buf, 0, ring->buf_size);
mlx4_en_update_rx_prod_db(ring);
/* Initailize all descriptors */
for (i = 0; i < ring->size; i++)
mlx4_en_init_rx_desc(priv, ring, i);
/* Initialize page allocators */
err = mlx4_en_init_allocator(priv, ring);
if (err) {
mlx4_err(mdev, "Failed initializing ring allocator\n");
goto err_allocator;
}
/* Fill Rx buffers */
ring->full = 0;
}
if (mlx4_en_fill_rx_buffers(priv))
goto err_buffers;
for (ring_ind = 0; ring_ind < priv->rx_ring_num; ring_ind++) {
ring = &priv->rx_ring[ring_ind];
mlx4_en_update_rx_prod_db(ring);
/* Configure SRQ representing the ring */
ring->srq.max = ring->size;
ring->srq.max_gs = max_gs;
ring->srq.wqe_shift = ilog2(ring->stride);
for (i = 0; i < ring->srq.max; ++i) {
next = get_wqe(ring, i);
next->next_wqe_index =
cpu_to_be16((i + 1) & (ring->srq.max - 1));
}
err = mlx4_srq_alloc(mdev->dev, mdev->priv_pdn, &ring->wqres.mtt,
ring->wqres.db.dma, &ring->srq);
if (err){
mlx4_err(mdev, "Failed to allocate srq\n");
goto err_srq;
}
ring->srq.event = mlx4_en_srq_event;
}
return 0;
err_srq:
while (ring_ind >= 0) {
ring = &priv->rx_ring[ring_ind];
mlx4_srq_free(mdev->dev, &ring->srq);
ring_ind--;
}
err_buffers:
for (ring_ind = 0; ring_ind < priv->rx_ring_num; ring_ind++)
mlx4_en_free_rx_buf(priv, &priv->rx_ring[ring_ind]);
ring_ind = priv->rx_ring_num - 1;
err_allocator:
while (ring_ind >= 0) {
mlx4_en_destroy_allocator(priv, &priv->rx_ring[ring_ind]);
ring_ind--;
}
return err;
}
void mlx4_en_destroy_rx_ring(struct mlx4_en_priv *priv,
struct mlx4_en_rx_ring *ring)
{
struct mlx4_en_dev *mdev = priv->mdev;
kfree(ring->lro.lro_arr);
mlx4_en_unmap_buffer(&ring->wqres.buf);
mlx4_free_hwq_res(mdev->dev, &ring->wqres, ring->buf_size);
vfree(ring->rx_info);
ring->rx_info = NULL;
}
void mlx4_en_deactivate_rx_ring(struct mlx4_en_priv *priv,
struct mlx4_en_rx_ring *ring)
{
struct mlx4_en_dev *mdev = priv->mdev;
mlx4_srq_free(mdev->dev, &ring->srq);
mlx4_en_free_rx_buf(priv, ring);
mlx4_en_destroy_allocator(priv, ring);
}
/* Unmap a completed descriptor and free unused pages */
static int mlx4_en_complete_rx_desc(struct mlx4_en_priv *priv,
struct mlx4_en_rx_desc *rx_desc,
struct skb_frag_struct *skb_frags,
struct skb_frag_struct *skb_frags_rx,
struct mlx4_en_rx_alloc *page_alloc,
int length)
{
struct mlx4_en_dev *mdev = priv->mdev;
struct mlx4_en_frag_info *frag_info;
int nr;
dma_addr_t dma;
/* Collect used fragments while replacing them in the HW descirptors */
for (nr = 0; nr < priv->num_frags; nr++) {
frag_info = &priv->frag_info[nr];
if (length <= frag_info->frag_prefix_size)
break;
/* Save page reference in skb */
skb_frags_rx[nr].page = skb_frags[nr].page;
skb_frags_rx[nr].size = skb_frags[nr].size;
skb_frags_rx[nr].page_offset = skb_frags[nr].page_offset;
dma = be64_to_cpu(rx_desc->data[nr].addr);
/* Allocate a replacement page */
if (mlx4_en_alloc_frag(priv, rx_desc, skb_frags, page_alloc, nr))
goto fail;
/* Unmap buffer */
pci_unmap_single(mdev->pdev, dma, skb_frags[nr].size,
PCI_DMA_FROMDEVICE);
}
/* Adjust size of last fragment to match actual length */
skb_frags_rx[nr - 1].size = length -
priv->frag_info[nr - 1].frag_prefix_size;
return nr;
fail:
/* Drop all accumulated fragments (which have already been replaced in
* the descriptor) of this packet; remaining fragments are reused... */
while (nr > 0) {
nr--;
put_page(skb_frags_rx[nr].page);
}
return 0;
}
static struct sk_buff *mlx4_en_rx_skb(struct mlx4_en_priv *priv,
struct mlx4_en_rx_desc *rx_desc,
struct skb_frag_struct *skb_frags,
struct mlx4_en_rx_alloc *page_alloc,
unsigned int length)
{
struct mlx4_en_dev *mdev = priv->mdev;
struct sk_buff *skb;
void *va;
int used_frags;
dma_addr_t dma;
skb = dev_alloc_skb(SMALL_PACKET_SIZE + NET_IP_ALIGN);
if (!skb) {
mlx4_dbg(RX_ERR, priv, "Failed allocating skb\n");
return NULL;
}
skb->dev = priv->dev;
skb_reserve(skb, NET_IP_ALIGN);
skb->len = length;
skb->truesize = length + sizeof(struct sk_buff);
/* Get pointer to first fragment so we could copy the headers into the
* (linear part of the) skb */
va = page_address(skb_frags[0].page) + skb_frags[0].page_offset;
if (length <= SMALL_PACKET_SIZE) {
/* We are copying all relevant data to the skb - temporarily
* synch buffers for the copy */
dma = be64_to_cpu(rx_desc->data[0].addr);
dma_sync_single_range_for_cpu(&mdev->pdev->dev, dma, 0,
length, DMA_FROM_DEVICE);
skb_copy_to_linear_data(skb, va, length);
dma_sync_single_range_for_device(&mdev->pdev->dev, dma, 0,
length, DMA_FROM_DEVICE);
skb->tail += length;
} else {
/* Move relevant fragments to skb */
used_frags = mlx4_en_complete_rx_desc(priv, rx_desc, skb_frags,
skb_shinfo(skb)->frags,
page_alloc, length);
skb_shinfo(skb)->nr_frags = used_frags;
/* Copy headers into the skb linear buffer */
memcpy(skb->data, va, HEADER_COPY_SIZE);
skb->tail += HEADER_COPY_SIZE;
/* Skip headers in first fragment */
skb_shinfo(skb)->frags[0].page_offset += HEADER_COPY_SIZE;
/* Adjust size of first fragment */
skb_shinfo(skb)->frags[0].size -= HEADER_COPY_SIZE;
skb->data_len = length - HEADER_COPY_SIZE;
}
return skb;
}
static void mlx4_en_copy_desc(struct mlx4_en_priv *priv,
struct mlx4_en_rx_ring *ring,
int from, int to, int num)
{
struct skb_frag_struct *skb_frags_from;
struct skb_frag_struct *skb_frags_to;
struct mlx4_en_rx_desc *rx_desc_from;
struct mlx4_en_rx_desc *rx_desc_to;
int from_index, to_index;
int nr, i;
for (i = 0; i < num; i++) {
from_index = (from + i) & ring->size_mask;
to_index = (to + i) & ring->size_mask;
skb_frags_from = ring->rx_info + (from_index << priv->log_rx_info);
skb_frags_to = ring->rx_info + (to_index << priv->log_rx_info);
rx_desc_from = ring->buf + (from_index << ring->log_stride);
rx_desc_to = ring->buf + (to_index << ring->log_stride);
for (nr = 0; nr < priv->num_frags; nr++) {
skb_frags_to[nr].page = skb_frags_from[nr].page;
skb_frags_to[nr].page_offset = skb_frags_from[nr].page_offset;
rx_desc_to->data[nr].addr = rx_desc_from->data[nr].addr;
}
}
}
int mlx4_en_process_rx_cq(struct net_device *dev, struct mlx4_en_cq *cq, int budget)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
struct mlx4_en_dev *mdev = priv->mdev;
struct mlx4_cqe *cqe;
struct mlx4_en_rx_ring *ring = &priv->rx_ring[cq->ring];
struct skb_frag_struct *skb_frags;
struct skb_frag_struct lro_frags[MLX4_EN_MAX_RX_FRAGS];
struct mlx4_en_rx_desc *rx_desc;
struct sk_buff *skb;
int index;
int nr;
unsigned int length;
int polled = 0;
int ip_summed;
if (!priv->port_up)
return 0;
/* We assume a 1:1 mapping between CQEs and Rx descriptors, so Rx
* descriptor offset can be deduced from the CQE index instead of
* reading 'cqe->index' */
index = cq->mcq.cons_index & ring->size_mask;
cqe = &cq->buf[index];
/* Process all completed CQEs */
while (XNOR(cqe->owner_sr_opcode & MLX4_CQE_OWNER_MASK,
cq->mcq.cons_index & cq->size)) {
skb_frags = ring->rx_info + (index << priv->log_rx_info);
rx_desc = ring->buf + (index << ring->log_stride);
/*
* make sure we read the CQE after we read the ownership bit
*/
rmb();
/* Drop packet on bad receive or bad checksum */
if (unlikely((cqe->owner_sr_opcode & MLX4_CQE_OPCODE_MASK) ==
MLX4_CQE_OPCODE_ERROR)) {
mlx4_err(mdev, "CQE completed in error - vendor "
"syndrom:%d syndrom:%d\n",
((struct mlx4_err_cqe *) cqe)->vendor_err_syndrome,
((struct mlx4_err_cqe *) cqe)->syndrome);
goto next;
}
if (unlikely(cqe->badfcs_enc & MLX4_CQE_BAD_FCS)) {
mlx4_dbg(RX_ERR, priv, "Accepted frame with bad FCS\n");
goto next;
}
/*
* Packet is OK - process it.
*/
length = be32_to_cpu(cqe->byte_cnt);
ring->bytes += length;
ring->packets++;
if (likely(priv->rx_csum)) {
if ((cqe->status & cpu_to_be16(MLX4_CQE_STATUS_IPOK)) &&
(cqe->checksum == cpu_to_be16(0xffff))) {
priv->port_stats.rx_chksum_good++;
/* This packet is eligible for LRO if it is:
* - DIX Ethernet (type interpretation)
* - TCP/IP (v4)
* - without IP options
* - not an IP fragment */
if (mlx4_en_can_lro(cqe->status) &&
dev->features & NETIF_F_LRO) {
nr = mlx4_en_complete_rx_desc(
priv, rx_desc,
skb_frags, lro_frags,
ring->page_alloc, length);
if (!nr)
goto next;
if (priv->vlgrp && (cqe->vlan_my_qpn &
cpu_to_be32(MLX4_CQE_VLAN_PRESENT_MASK))) {
lro_vlan_hwaccel_receive_frags(
&ring->lro, lro_frags,
length, length,
priv->vlgrp,
be16_to_cpu(cqe->sl_vid),
NULL, 0);
} else
lro_receive_frags(&ring->lro,
lro_frags,
length,
length,
NULL, 0);
goto next;
}
/* LRO not possible, complete processing here */
ip_summed = CHECKSUM_UNNECESSARY;
INC_PERF_COUNTER(priv->pstats.lro_misses);
} else {
ip_summed = CHECKSUM_NONE;
priv->port_stats.rx_chksum_none++;
}
} else {
ip_summed = CHECKSUM_NONE;
priv->port_stats.rx_chksum_none++;
}
skb = mlx4_en_rx_skb(priv, rx_desc, skb_frags,
ring->page_alloc, length);
if (!skb) {
priv->stats.rx_dropped++;
goto next;
}
skb->ip_summed = ip_summed;
skb->protocol = eth_type_trans(skb, dev);
/* Push it up the stack */
if (priv->vlgrp && (be32_to_cpu(cqe->vlan_my_qpn) &
MLX4_CQE_VLAN_PRESENT_MASK)) {
vlan_hwaccel_receive_skb(skb, priv->vlgrp,
be16_to_cpu(cqe->sl_vid));
} else
netif_receive_skb(skb);
dev->last_rx = jiffies;
next:
++cq->mcq.cons_index;
index = (cq->mcq.cons_index) & ring->size_mask;
cqe = &cq->buf[index];
if (++polled == budget) {
/* We are here because we reached the NAPI budget -
* flush only pending LRO sessions */
lro_flush_all(&ring->lro);
goto out;
}
}
/* If CQ is empty flush all LRO sessions unconditionally */
lro_flush_all(&ring->lro);
out:
AVG_PERF_COUNTER(priv->pstats.rx_coal_avg, polled);
mlx4_cq_set_ci(&cq->mcq);
wmb(); /* ensure HW sees CQ consumer before we post new buffers */
ring->cons = cq->mcq.cons_index;
ring->prod += polled; /* Polled descriptors were realocated in place */
if (unlikely(!ring->full)) {
mlx4_en_copy_desc(priv, ring, ring->cons - polled,
ring->prod - polled, polled);
mlx4_en_fill_rx_buf(dev, ring);
}
mlx4_en_update_rx_prod_db(ring);
return polled;
}
void mlx4_en_rx_irq(struct mlx4_cq *mcq)
{
struct mlx4_en_cq *cq = container_of(mcq, struct mlx4_en_cq, mcq);
struct mlx4_en_priv *priv = netdev_priv(cq->dev);
if (priv->port_up)
netif_rx_schedule(cq->dev, &cq->napi);
else
mlx4_en_arm_cq(priv, cq);
}
/* Rx CQ polling - called by NAPI */
int mlx4_en_poll_rx_cq(struct napi_struct *napi, int budget)
{
struct mlx4_en_cq *cq = container_of(napi, struct mlx4_en_cq, napi);
struct net_device *dev = cq->dev;
struct mlx4_en_priv *priv = netdev_priv(dev);
int done;
done = mlx4_en_process_rx_cq(dev, cq, budget);
/* If we used up all the quota - we're probably not done yet... */
if (done == budget)
INC_PERF_COUNTER(priv->pstats.napi_quota);
else {
/* Done for now */
netif_rx_complete(dev, napi);
mlx4_en_arm_cq(priv, cq);
}
return done;
}
/* Calculate the last offset position that accomodates a full fragment
* (assuming fagment size = stride-align) */
static int mlx4_en_last_alloc_offset(struct mlx4_en_priv *priv, u16 stride, u16 align)
{
u16 res = MLX4_EN_ALLOC_SIZE % stride;
u16 offset = MLX4_EN_ALLOC_SIZE - stride - res + align;
mlx4_dbg(DRV, priv, "Calculated last offset for stride:%d align:%d "
"res:%d offset:%d\n", stride, align, res, offset);
return offset;
}
static int frag_sizes[] = {
FRAG_SZ0,
FRAG_SZ1,
FRAG_SZ2,
FRAG_SZ3
};
void mlx4_en_calc_rx_buf(struct net_device *dev)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
int eff_mtu = dev->mtu + ETH_HLEN + VLAN_HLEN + ETH_LLC_SNAP_SIZE;
int buf_size = 0;
int i = 0;
while (buf_size < eff_mtu) {
priv->frag_info[i].frag_size =
(eff_mtu > buf_size + frag_sizes[i]) ?
frag_sizes[i] : eff_mtu - buf_size;
priv->frag_info[i].frag_prefix_size = buf_size;
if (!i) {
priv->frag_info[i].frag_align = NET_IP_ALIGN;
priv->frag_info[i].frag_stride =
ALIGN(frag_sizes[i] + NET_IP_ALIGN, SMP_CACHE_BYTES);
} else {
priv->frag_info[i].frag_align = 0;
priv->frag_info[i].frag_stride =
ALIGN(frag_sizes[i], SMP_CACHE_BYTES);
}
priv->frag_info[i].last_offset = mlx4_en_last_alloc_offset(
priv, priv->frag_info[i].frag_stride,
priv->frag_info[i].frag_align);
buf_size += priv->frag_info[i].frag_size;
i++;
}
priv->num_frags = i;
priv->rx_skb_size = eff_mtu;
priv->log_rx_info = ROUNDUP_LOG2(i * sizeof(struct skb_frag_struct));
mlx4_dbg(DRV, priv, "Rx buffer scatter-list (effective-mtu:%d "
"num_frags:%d):\n", eff_mtu, priv->num_frags);
for (i = 0; i < priv->num_frags; i++) {
mlx4_dbg(DRV, priv, " frag:%d - size:%d prefix:%d align:%d "
"stride:%d last_offset:%d\n", i,
priv->frag_info[i].frag_size,
priv->frag_info[i].frag_prefix_size,
priv->frag_info[i].frag_align,
priv->frag_info[i].frag_stride,
priv->frag_info[i].last_offset);
}
}
/* RSS related functions */
/* Calculate rss size and map each entry in rss table to rx ring */
void mlx4_en_set_default_rss_map(struct mlx4_en_priv *priv,
struct mlx4_en_rss_map *rss_map,
int num_entries, int num_rings)
{
int i;
rss_map->size = roundup_pow_of_two(num_entries);
mlx4_dbg(DRV, priv, "Setting default RSS map of %d entires\n",
rss_map->size);
for (i = 0; i < rss_map->size; i++) {
rss_map->map[i] = i % num_rings;
mlx4_dbg(DRV, priv, "Entry %d ---> ring %d\n", i, rss_map->map[i]);
}
}
static void mlx4_en_sqp_event(struct mlx4_qp *qp, enum mlx4_event event)
{
return;
}
static int mlx4_en_config_rss_qp(struct mlx4_en_priv *priv,
int qpn, int srqn, int cqn,
enum mlx4_qp_state *state,
struct mlx4_qp *qp)
{
struct mlx4_en_dev *mdev = priv->mdev;
struct mlx4_qp_context *context;
int err = 0;
context = kmalloc(sizeof *context , GFP_KERNEL);
if (!context) {
mlx4_err(mdev, "Failed to allocate qp context\n");
return -ENOMEM;
}
err = mlx4_qp_alloc(mdev->dev, qpn, qp);
if (err) {
mlx4_err(mdev, "Failed to allocate qp #%d\n", qpn);
goto out;
return err;
}
qp->event = mlx4_en_sqp_event;
memset(context, 0, sizeof *context);
mlx4_en_fill_qp_context(priv, 0, 0, 0, 0, qpn, cqn, srqn, context);
err = mlx4_qp_to_ready(mdev->dev, &priv->res.mtt, context, qp, state);
if (err) {
mlx4_qp_remove(mdev->dev, qp);
mlx4_qp_free(mdev->dev, qp);
}
out:
kfree(context);
return err;
}
/* Allocate rx qp's and configure them according to rss map */
int mlx4_en_config_rss_steer(struct mlx4_en_priv *priv)
{
struct mlx4_en_dev *mdev = priv->mdev;
struct mlx4_en_rss_map *rss_map = &priv->rss_map;
struct mlx4_qp_context context;
struct mlx4_en_rss_context *rss_context;
void *ptr;
int rss_xor = mdev->profile.rss_xor;
u8 rss_mask = mdev->profile.rss_mask;
int i, srqn, qpn, cqn;
int err = 0;
int good_qps = 0;
mlx4_dbg(DRV, priv, "Configuring rss steering for port %u\n", priv->port);
err = mlx4_qp_reserve_range(mdev->dev, rss_map->size,
rss_map->size, &rss_map->base_qpn);
if (err) {
mlx4_err(mdev, "Failed reserving %d qps for port %u\n",
rss_map->size, priv->port);
return err;
}
for (i = 0; i < rss_map->size; i++) {
cqn = priv->rx_ring[rss_map->map[i]].cqn;
srqn = priv->rx_ring[rss_map->map[i]].srq.srqn;
qpn = rss_map->base_qpn + i;
err = mlx4_en_config_rss_qp(priv, qpn, srqn, cqn,
&rss_map->state[i],
&rss_map->qps[i]);
if (err)
goto rss_err;
++good_qps;
}
/* Configure RSS indirection qp */
err = mlx4_qp_reserve_range(mdev->dev, 1, 1, &priv->base_qpn);
if (err) {
mlx4_err(mdev, "Failed to reserve range for RSS "
"indirection qp\n");
goto rss_err;
}
err = mlx4_qp_alloc(mdev->dev, priv->base_qpn, &rss_map->indir_qp);
if (err) {
mlx4_err(mdev, "Failed to allocate RSS indirection QP\n");
goto reserve_err;
}
rss_map->indir_qp.event = mlx4_en_sqp_event;
mlx4_en_fill_qp_context(priv, 0, 0, 0, 1, priv->base_qpn,
priv->rx_ring[0].cqn, 0, &context);
ptr = ((void *) &context) + 0x3c;
rss_context = (struct mlx4_en_rss_context *) ptr;
rss_context->base_qpn = cpu_to_be32(ilog2(rss_map->size) << 24 |
(rss_map->base_qpn));
rss_context->default_qpn = cpu_to_be32(rss_map->base_qpn);
rss_context->hash_fn = rss_xor & 0x3;
rss_context->flags = rss_mask << 2;
err = mlx4_qp_to_ready(mdev->dev, &priv->res.mtt, &context,
&rss_map->indir_qp, &rss_map->indir_state);
if (err)
goto indir_err;
return 0;
indir_err:
mlx4_qp_modify(mdev->dev, NULL, rss_map->indir_state,
MLX4_QP_STATE_RST, NULL, 0, 0, &rss_map->indir_qp);
mlx4_qp_remove(mdev->dev, &rss_map->indir_qp);
mlx4_qp_free(mdev->dev, &rss_map->indir_qp);
reserve_err:
mlx4_qp_release_range(mdev->dev, priv->base_qpn, 1);
rss_err:
for (i = 0; i < good_qps; i++) {
mlx4_qp_modify(mdev->dev, NULL, rss_map->state[i],
MLX4_QP_STATE_RST, NULL, 0, 0, &rss_map->qps[i]);
mlx4_qp_remove(mdev->dev, &rss_map->qps[i]);
mlx4_qp_free(mdev->dev, &rss_map->qps[i]);
}
mlx4_qp_release_range(mdev->dev, rss_map->base_qpn, rss_map->size);
return err;
}
void mlx4_en_release_rss_steer(struct mlx4_en_priv *priv)
{
struct mlx4_en_dev *mdev = priv->mdev;
struct mlx4_en_rss_map *rss_map = &priv->rss_map;
int i;
mlx4_qp_modify(mdev->dev, NULL, rss_map->indir_state,
MLX4_QP_STATE_RST, NULL, 0, 0, &rss_map->indir_qp);
mlx4_qp_remove(mdev->dev, &rss_map->indir_qp);
mlx4_qp_free(mdev->dev, &rss_map->indir_qp);
mlx4_qp_release_range(mdev->dev, priv->base_qpn, 1);
for (i = 0; i < rss_map->size; i++) {
mlx4_qp_modify(mdev->dev, NULL, rss_map->state[i],
MLX4_QP_STATE_RST, NULL, 0, 0, &rss_map->qps[i]);
mlx4_qp_remove(mdev->dev, &rss_map->qps[i]);
mlx4_qp_free(mdev->dev, &rss_map->qps[i]);
}
mlx4_qp_release_range(mdev->dev, rss_map->base_qpn, rss_map->size);
}
drivers/net/mlx4/en_tx.c 0 → 100644
View file @ 724bdd09
/*
* Copyright (c) 2007 Mellanox Technologies. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
*/
#include <asm/page.h>
#include <linux/mlx4/cq.h>
#include <linux/mlx4/qp.h>
#include <linux/skbuff.h>
#include <linux/if_vlan.h>
#include <linux/vmalloc.h>
#include "mlx4_en.h"
enum {
MAX_INLINE = 104, /* 128 - 16 - 4 - 4 */
};
static int inline_thold __read_mostly = MAX_INLINE;
module_param_named(inline_thold, inline_thold, int, 0444);
MODULE_PARM_DESC(inline_thold, "treshold for using inline data");
int mlx4_en_create_tx_ring(struct mlx4_en_priv *priv,
struct mlx4_en_tx_ring *ring, u32 size,
u16 stride)
{
struct mlx4_en_dev *mdev = priv->mdev;
int tmp;
int err;
ring->size = size;
ring->size_mask = size - 1;
ring->stride = stride;
inline_thold = min(inline_thold, MAX_INLINE);
spin_lock_init(&ring->comp_lock);
tmp = size * sizeof(struct mlx4_en_tx_info);
ring->tx_info = vmalloc(tmp);
if (!ring->tx_info) {
mlx4_err(mdev, "Failed allocating tx_info ring\n");
return -ENOMEM;
}
mlx4_dbg(DRV, priv, "Allocated tx_info ring at addr:%p size:%d\n",
ring->tx_info, tmp);
ring->bounce_buf = kmalloc(MAX_DESC_SIZE, GFP_KERNEL);
if (!ring->bounce_buf) {
mlx4_err(mdev, "Failed allocating bounce buffer\n");
err = -ENOMEM;
goto err_tx;
}
ring->buf_size = ALIGN(size * ring->stride, MLX4_EN_PAGE_SIZE);
err = mlx4_alloc_hwq_res(mdev->dev, &ring->wqres, ring->buf_size,
2 * PAGE_SIZE);
if (err) {
mlx4_err(mdev, "Failed allocating hwq resources\n");
goto err_bounce;
}
err = mlx4_en_map_buffer(&ring->wqres.buf);
if (err) {
mlx4_err(mdev, "Failed to map TX buffer\n");
goto err_hwq_res;
}
ring->buf = ring->wqres.buf.direct.buf;
mlx4_dbg(DRV, priv, "Allocated TX ring (addr:%p) - buf:%p size:%d "
"buf_size:%d dma:%llx\n", ring, ring->buf, ring->size,
ring->buf_size, (unsigned long long) ring->wqres.buf.direct.map);
err = mlx4_qp_reserve_range(mdev->dev, 1, 1, &ring->qpn);
if (err) {
mlx4_err(mdev, "Failed reserving qp for tx ring.\n");
goto err_map;
}
err = mlx4_qp_alloc(mdev->dev, ring->qpn, &ring->qp);
if (err) {
mlx4_err(mdev, "Failed allocating qp %d\n", ring->qpn);
goto err_reserve;
}
return 0;
err_reserve:
mlx4_qp_release_range(mdev->dev, ring->qpn, 1);
err_map:
mlx4_en_unmap_buffer(&ring->wqres.buf);
err_hwq_res:
mlx4_free_hwq_res(mdev->dev, &ring->wqres, ring->buf_size);
err_bounce:
kfree(ring->bounce_buf);
ring->bounce_buf = NULL;
err_tx:
vfree(ring->tx_info);
ring->tx_info = NULL;
return err;
}
void mlx4_en_destroy_tx_ring(struct mlx4_en_priv *priv,
struct mlx4_en_tx_ring *ring)
{
struct mlx4_en_dev *mdev = priv->mdev;
mlx4_dbg(DRV, priv, "Destroying tx ring, qpn: %d\n", ring->qpn);
mlx4_qp_remove(mdev->dev, &ring->qp);
mlx4_qp_free(mdev->dev, &ring->qp);
mlx4_qp_release_range(mdev->dev, ring->qpn, 1);
mlx4_en_unmap_buffer(&ring->wqres.buf);
mlx4_free_hwq_res(mdev->dev, &ring->wqres, ring->buf_size);
kfree(ring->bounce_buf);
ring->bounce_buf = NULL;
vfree(ring->tx_info);
ring->tx_info = NULL;
}
int mlx4_en_activate_tx_ring(struct mlx4_en_priv *priv,
struct mlx4_en_tx_ring *ring,
int cq, int srqn)
{
struct mlx4_en_dev *mdev = priv->mdev;
int err;
ring->cqn = cq;
ring->prod = 0;
ring->cons = 0xffffffff;
ring->last_nr_txbb = 1;
ring->poll_cnt = 0;
ring->blocked = 0;
memset(ring->tx_info, 0, ring->size * sizeof(struct mlx4_en_tx_info));
memset(ring->buf, 0, ring->buf_size);
ring->qp_state = MLX4_QP_STATE_RST;
ring->doorbell_qpn = swab32(ring->qp.qpn << 8);
mlx4_en_fill_qp_context(priv, ring->size, ring->stride, 1, 0, ring->qpn,
ring->cqn, srqn, &ring->context);
err = mlx4_qp_to_ready(mdev->dev, &ring->wqres.mtt, &ring->context,
&ring->qp, &ring->qp_state);
return err;
}
void mlx4_en_deactivate_tx_ring(struct mlx4_en_priv *priv,
struct mlx4_en_tx_ring *ring)
{
struct mlx4_en_dev *mdev = priv->mdev;
mlx4_qp_modify(mdev->dev, NULL, ring->qp_state,
MLX4_QP_STATE_RST, NULL, 0, 0, &ring->qp);
}
static u32 mlx4_en_free_tx_desc(struct mlx4_en_priv *priv,
struct mlx4_en_tx_ring *ring,
int index, u8 owner)
{
struct mlx4_en_dev *mdev = priv->mdev;
struct mlx4_en_tx_info *tx_info = &ring->tx_info[index];
struct mlx4_en_tx_desc *tx_desc = ring->buf + index * TXBB_SIZE;
struct mlx4_wqe_data_seg *data = (void *) tx_desc + tx_info->data_offset;
struct sk_buff *skb = tx_info->skb;
struct skb_frag_struct *frag;
void *end = ring->buf + ring->buf_size;
int frags = skb_shinfo(skb)->nr_frags;
int i;
__be32 *ptr = (__be32 *)tx_desc;
__be32 stamp = cpu_to_be32(STAMP_VAL | (!!owner << STAMP_SHIFT));
/* Optimize the common case when there are no wraparounds */
if (likely((void *) tx_desc + tx_info->nr_txbb * TXBB_SIZE <= end)) {
if (tx_info->linear) {
pci_unmap_single(mdev->pdev,
(dma_addr_t) be64_to_cpu(data->addr),
be32_to_cpu(data->byte_count),
PCI_DMA_TODEVICE);
++data;
}
for (i = 0; i < frags; i++) {
frag = &skb_shinfo(skb)->frags[i];
pci_unmap_page(mdev->pdev,
(dma_addr_t) be64_to_cpu(data[i].addr),
frag->size, PCI_DMA_TODEVICE);
}
/* Stamp the freed descriptor */
for (i = 0; i < tx_info->nr_txbb * TXBB_SIZE; i += STAMP_STRIDE) {
*ptr = stamp;
ptr += STAMP_DWORDS;
}
} else {
if ((void *) data >= end) {
data = (struct mlx4_wqe_data_seg *)
(ring->buf + ((void *) data - end));
}
if (tx_info->linear) {
pci_unmap_single(mdev->pdev,
(dma_addr_t) be64_to_cpu(data->addr),
be32_to_cpu(data->byte_count),
PCI_DMA_TODEVICE);
++data;
}
for (i = 0; i < frags; i++) {
/* Check for wraparound before unmapping */
if ((void *) data >= end)
data = (struct mlx4_wqe_data_seg *) ring->buf;
frag = &skb_shinfo(skb)->frags[i];
pci_unmap_page(mdev->pdev,
(dma_addr_t) be64_to_cpu(data->addr),
frag->size, PCI_DMA_TODEVICE);
}
/* Stamp the freed descriptor */
for (i = 0; i < tx_info->nr_txbb * TXBB_SIZE; i += STAMP_STRIDE) {
*ptr = stamp;
ptr += STAMP_DWORDS;
if ((void *) ptr >= end) {
ptr = ring->buf;
stamp ^= cpu_to_be32(0x80000000);
}
}
}
dev_kfree_skb_any(skb);
return tx_info->nr_txbb;
}
int mlx4_en_free_tx_buf(struct net_device *dev, struct mlx4_en_tx_ring *ring)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
int cnt = 0;
/* Skip last polled descriptor */
ring->cons += ring->last_nr_txbb;
mlx4_dbg(DRV, priv, "Freeing Tx buf - cons:0x%x prod:0x%x\n",
ring->cons, ring->prod);
if ((u32) (ring->prod - ring->cons) > ring->size) {
if (netif_msg_tx_err(priv))
mlx4_warn(priv->mdev, "Tx consumer passed producer!\n");
return 0;
}
while (ring->cons != ring->prod) {
ring->last_nr_txbb = mlx4_en_free_tx_desc(priv, ring,
ring->cons & ring->size_mask,
!!(ring->cons & ring->size));
ring->cons += ring->last_nr_txbb;
cnt++;
}
if (cnt)
mlx4_dbg(DRV, priv, "Freed %d uncompleted tx descriptors\n", cnt);
return cnt;
}
void mlx4_en_set_prio_map(struct mlx4_en_priv *priv, u16 *prio_map, u32 ring_num)
{
int block = 8 / ring_num;
int extra = 8 - (block * ring_num);
int num = 0;
u16 ring = 1;
int prio;
if (ring_num == 1) {
for (prio = 0; prio < 8; prio++)
prio_map[prio] = 0;
return;
}
for (prio = 0; prio < 8; prio++) {
if (extra && (num == block + 1)) {
ring++;
num = 0;
extra--;
} else if (!extra && (num == block)) {
ring++;
num = 0;
}
prio_map[prio] = ring;
mlx4_dbg(DRV, priv, " prio:%d --> ring:%d\n", prio, ring);
num++;
}
}
static void mlx4_en_process_tx_cq(struct net_device *dev, struct mlx4_en_cq *cq)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
struct mlx4_cq *mcq = &cq->mcq;
struct mlx4_en_tx_ring *ring = &priv->tx_ring[cq->ring];
struct mlx4_cqe *cqe = cq->buf;
u16 index;
u16 new_index;
u32 txbbs_skipped = 0;
u32 cq_last_sav;
/* index always points to the first TXBB of the last polled descriptor */
index = ring->cons & ring->size_mask;
new_index = be16_to_cpu(cqe->wqe_index) & ring->size_mask;
if (index == new_index)
return;
if (!priv->port_up)
return;
/*
* We use a two-stage loop:
* - the first samples the HW-updated CQE
* - the second frees TXBBs until the last sample
* This lets us amortize CQE cache misses, while still polling the CQ
* until is quiescent.
*/
cq_last_sav = mcq->cons_index;
do {
do {
/* Skip over last polled CQE */
index = (index + ring->last_nr_txbb) & ring->size_mask;
txbbs_skipped += ring->last_nr_txbb;
/* Poll next CQE */
ring->last_nr_txbb = mlx4_en_free_tx_desc(
priv, ring, index,
!!((ring->cons + txbbs_skipped) &
ring->size));
++mcq->cons_index;
} while (index != new_index);
new_index = be16_to_cpu(cqe->wqe_index) & ring->size_mask;
} while (index != new_index);
AVG_PERF_COUNTER(priv->pstats.tx_coal_avg,
(u32) (mcq->cons_index - cq_last_sav));
/*
* To prevent CQ overflow we first update CQ consumer and only then
* the ring consumer.
*/
mlx4_cq_set_ci(mcq);
wmb();
ring->cons += txbbs_skipped;
/* Wakeup Tx queue if this ring stopped it */
if (unlikely(ring->blocked)) {
if (((u32) (ring->prod - ring->cons) <=
ring->size - HEADROOM - MAX_DESC_TXBBS) && !cq->armed) {
/* TODO: support multiqueue netdevs. Currently, we block
* when *any* ring is full. Note that:
* - 2 Tx rings can unblock at the same time and call
* netif_wake_queue(), which is OK since this
* operation is idempotent.
* - We might wake the queue just after another ring
* stopped it. This is no big deal because the next
* transmission on that ring would stop the queue.
*/
ring->blocked = 0;
netif_wake_queue(dev);
priv->port_stats.wake_queue++;
}
}
}
void mlx4_en_tx_irq(struct mlx4_cq *mcq)
{
struct mlx4_en_cq *cq = container_of(mcq, struct mlx4_en_cq, mcq);
struct mlx4_en_priv *priv = netdev_priv(cq->dev);
struct mlx4_en_tx_ring *ring = &priv->tx_ring[cq->ring];
spin_lock_irq(&ring->comp_lock);
cq->armed = 0;
mlx4_en_process_tx_cq(cq->dev, cq);
if (ring->blocked)
mlx4_en_arm_cq(priv, cq);
else
mod_timer(&cq->timer, jiffies + 1);
spin_unlock_irq(&ring->comp_lock);
}
void mlx4_en_poll_tx_cq(unsigned long data)
{
struct mlx4_en_cq *cq = (struct mlx4_en_cq *) data;
struct mlx4_en_priv *priv = netdev_priv(cq->dev);
struct mlx4_en_tx_ring *ring = &priv->tx_ring[cq->ring];
u32 inflight;
INC_PERF_COUNTER(priv->pstats.tx_poll);
netif_tx_lock(priv->dev);
spin_lock_irq(&ring->comp_lock);
mlx4_en_process_tx_cq(cq->dev, cq);
inflight = (u32) (ring->prod - ring->cons - ring->last_nr_txbb);
/* If there are still packets in flight and the timer has not already
* been scheduled by the Tx routine then schedule it here to guarantee
* completion processing of these packets */
if (inflight && priv->port_up)
mod_timer(&cq->timer, jiffies + MLX4_EN_TX_POLL_TIMEOUT);
spin_unlock_irq(&ring->comp_lock);
netif_tx_unlock(priv->dev);
}
static struct mlx4_en_tx_desc *mlx4_en_bounce_to_desc(struct mlx4_en_priv *priv,
struct mlx4_en_tx_ring *ring,
u32 index,
unsigned int desc_size)
{
u32 copy = (ring->size - index) * TXBB_SIZE;
int i;
for (i = desc_size - copy - 4; i >= 0; i -= 4) {
if ((i & (TXBB_SIZE - 1)) == 0)
wmb();
*((u32 *) (ring->buf + i)) =
*((u32 *) (ring->bounce_buf + copy + i));
}
for (i = copy - 4; i >= 4 ; i -= 4) {
if ((i & (TXBB_SIZE - 1)) == 0)
wmb();
*((u32 *) (ring->buf + index * TXBB_SIZE + i)) =
*((u32 *) (ring->bounce_buf + i));
}
/* Return real descriptor location */
return ring->buf + index * TXBB_SIZE;
}
static inline void mlx4_en_xmit_poll(struct mlx4_en_priv *priv, int tx_ind)
{
struct mlx4_en_cq *cq = &priv->tx_cq[tx_ind];
struct mlx4_en_tx_ring *ring = &priv->tx_ring[tx_ind];
/* If we don't have a pending timer, set one up to catch our recent
post in case the interface becomes idle */
if (!timer_pending(&cq->timer))
mod_timer(&cq->timer, jiffies + MLX4_EN_TX_POLL_TIMEOUT);
/* Poll the CQ every mlx4_en_TX_MODER_POLL packets */
if ((++ring->poll_cnt & (MLX4_EN_TX_POLL_MODER - 1)) == 0)
mlx4_en_process_tx_cq(priv->dev, cq);
}
static void *get_frag_ptr(struct sk_buff *skb)
{
struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[0];
struct page *page = frag->page;
void *ptr;
ptr = page_address(page);
if (unlikely(!ptr))
return NULL;
return ptr + frag->page_offset;
}
static int is_inline(struct sk_buff *skb, void **pfrag)
{
void *ptr;
if (inline_thold && !skb_is_gso(skb) && skb->len <= inline_thold) {
if (skb_shinfo(skb)->nr_frags == 1) {
ptr = get_frag_ptr(skb);
if (unlikely(!ptr))
return 0;
if (pfrag)
*pfrag = ptr;
return 1;
} else if (unlikely(skb_shinfo(skb)->nr_frags))
return 0;
else
return 1;
}
return 0;
}
static int inline_size(struct sk_buff *skb)
{
if (skb->len + CTRL_SIZE + sizeof(struct mlx4_wqe_inline_seg)
<= MLX4_INLINE_ALIGN)
return ALIGN(skb->len + CTRL_SIZE +
sizeof(struct mlx4_wqe_inline_seg), 16);
else
return ALIGN(skb->len + CTRL_SIZE + 2 *
sizeof(struct mlx4_wqe_inline_seg), 16);
}
static int get_real_size(struct sk_buff *skb, struct net_device *dev,
int *lso_header_size)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
struct mlx4_en_dev *mdev = priv->mdev;
int real_size;
if (skb_is_gso(skb)) {
*lso_header_size = skb_transport_offset(skb) + tcp_hdrlen(skb);
real_size = CTRL_SIZE + skb_shinfo(skb)->nr_frags * DS_SIZE +
ALIGN(*lso_header_size + 4, DS_SIZE);
if (unlikely(*lso_header_size != skb_headlen(skb))) {
/* We add a segment for the skb linear buffer only if
* it contains data */
if (*lso_header_size < skb_headlen(skb))
real_size += DS_SIZE;
else {
if (netif_msg_tx_err(priv))
mlx4_warn(mdev, "Non-linear headers\n");
dev_kfree_skb_any(skb);
return 0;
}
}
if (unlikely(*lso_header_size > MAX_LSO_HDR_SIZE)) {
if (netif_msg_tx_err(priv))
mlx4_warn(mdev, "LSO header size too big\n");
dev_kfree_skb_any(skb);
return 0;
}
} else {
*lso_header_size = 0;
if (!is_inline(skb, NULL))
real_size = CTRL_SIZE + (skb_shinfo(skb)->nr_frags + 1) * DS_SIZE;
else
real_size = inline_size(skb);
}
return real_size;
}
static void build_inline_wqe(struct mlx4_en_tx_desc *tx_desc, struct sk_buff *skb,
int real_size, u16 *vlan_tag, int tx_ind, void *fragptr)
{
struct mlx4_wqe_inline_seg *inl = &tx_desc->inl;
int spc = MLX4_INLINE_ALIGN - CTRL_SIZE - sizeof *inl;
if (skb->len <= spc) {
inl->byte_count = cpu_to_be32(1 << 31 | skb->len);
skb_copy_from_linear_data(skb, inl + 1, skb_headlen(skb));
if (skb_shinfo(skb)->nr_frags)
memcpy(((void *)(inl + 1)) + skb_headlen(skb), fragptr,
skb_shinfo(skb)->frags[0].size);
} else {
inl->byte_count = cpu_to_be32(1 << 31 | spc);
if (skb_headlen(skb) <= spc) {
skb_copy_from_linear_data(skb, inl + 1, skb_headlen(skb));
if (skb_headlen(skb) < spc) {
memcpy(((void *)(inl + 1)) + skb_headlen(skb),
fragptr, spc - skb_headlen(skb));
fragptr += spc - skb_headlen(skb);
}
inl = (void *) (inl + 1) + spc;
memcpy(((void *)(inl + 1)), fragptr, skb->len - spc);
} else {
skb_copy_from_linear_data(skb, inl + 1, spc);
inl = (void *) (inl + 1) + spc;
skb_copy_from_linear_data_offset(skb, spc, inl + 1,
skb_headlen(skb) - spc);
if (skb_shinfo(skb)->nr_frags)
memcpy(((void *)(inl + 1)) + skb_headlen(skb) - spc,
fragptr, skb_shinfo(skb)->frags[0].size);
}
wmb();
inl->byte_count = cpu_to_be32(1 << 31 | (skb->len - spc));
}
tx_desc->ctrl.vlan_tag = cpu_to_be16(*vlan_tag);
tx_desc->ctrl.ins_vlan = MLX4_WQE_CTRL_INS_VLAN * !!(*vlan_tag);
tx_desc->ctrl.fence_size = (real_size / 16) & 0x3f;
}
static int get_vlan_info(struct mlx4_en_priv *priv, struct sk_buff *skb,
u16 *vlan_tag)
{
int tx_ind;
/* Obtain VLAN information if present */
if (priv->vlgrp && vlan_tx_tag_present(skb)) {
*vlan_tag = vlan_tx_tag_get(skb);
/* Set the Tx ring to use according to vlan priority */
tx_ind = priv->tx_prio_map[*vlan_tag >> 13];
} else {
*vlan_tag = 0;
tx_ind = 0;
}
return tx_ind;
}
int mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
struct mlx4_en_dev *mdev = priv->mdev;
struct mlx4_en_tx_ring *ring;
struct mlx4_en_cq *cq;
struct mlx4_en_tx_desc *tx_desc;
struct mlx4_wqe_data_seg *data;
struct skb_frag_struct *frag;
struct mlx4_en_tx_info *tx_info;
int tx_ind = 0;
int nr_txbb;
int desc_size;
int real_size;
dma_addr_t dma;
u32 index;
__be32 op_own;
u16 vlan_tag;
int i;
int lso_header_size;
void *fragptr;
if (unlikely(!skb->len)) {
dev_kfree_skb_any(skb);
return NETDEV_TX_OK;
}
real_size = get_real_size(skb, dev, &lso_header_size);
if (unlikely(!real_size))
return NETDEV_TX_OK;
/* Allign descriptor to TXBB size */
desc_size = ALIGN(real_size, TXBB_SIZE);
nr_txbb = desc_size / TXBB_SIZE;
if (unlikely(nr_txbb > MAX_DESC_TXBBS)) {
if (netif_msg_tx_err(priv))
mlx4_warn(mdev, "Oversized header or SG list\n");
dev_kfree_skb_any(skb);
return NETDEV_TX_OK;
}
tx_ind = get_vlan_info(priv, skb, &vlan_tag);
ring = &priv->tx_ring[tx_ind];
/* Check available TXBBs And 2K spare for prefetch */
if (unlikely(((int)(ring->prod - ring->cons)) >
ring->size - HEADROOM - MAX_DESC_TXBBS)) {
/* every full Tx ring stops queue.
* TODO: implement multi-queue support (per-queue stop) */
netif_stop_queue(dev);
ring->blocked = 1;
priv->port_stats.queue_stopped++;
/* Use interrupts to find out when queue opened */
cq = &priv->tx_cq[tx_ind];
mlx4_en_arm_cq(priv, cq);
return NETDEV_TX_BUSY;
}
/* Now that we know what Tx ring to use */
if (unlikely(!priv->port_up)) {
if (netif_msg_tx_err(priv))
mlx4_warn(mdev, "xmit: port down!\n");
dev_kfree_skb_any(skb);
return NETDEV_TX_OK;
}
/* Track current inflight packets for performance analysis */
AVG_PERF_COUNTER(priv->pstats.inflight_avg,
(u32) (ring->prod - ring->cons - 1));
/* Packet is good - grab an index and transmit it */
index = ring->prod & ring->size_mask;
/* See if we have enough space for whole descriptor TXBB for setting
* SW ownership on next descriptor; if not, use a bounce buffer. */
if (likely(index + nr_txbb <= ring->size))
tx_desc = ring->buf + index * TXBB_SIZE;
else
tx_desc = (struct mlx4_en_tx_desc *) ring->bounce_buf;
/* Save skb in tx_info ring */
tx_info = &ring->tx_info[index];
tx_info->skb = skb;
tx_info->nr_txbb = nr_txbb;
/* Prepare ctrl segement apart opcode+ownership, which depends on
* whether LSO is used */
tx_desc->ctrl.vlan_tag = cpu_to_be16(vlan_tag);
tx_desc->ctrl.ins_vlan = MLX4_WQE_CTRL_INS_VLAN * !!vlan_tag;
tx_desc->ctrl.fence_size = (real_size / 16) & 0x3f;
tx_desc->ctrl.srcrb_flags = cpu_to_be32(MLX4_WQE_CTRL_CQ_UPDATE |
MLX4_WQE_CTRL_SOLICITED);
if (likely(skb->ip_summed == CHECKSUM_PARTIAL)) {
tx_desc->ctrl.srcrb_flags |= cpu_to_be32(MLX4_WQE_CTRL_IP_CSUM |
MLX4_WQE_CTRL_TCP_UDP_CSUM);
priv->port_stats.tx_chksum_offload++;
}
/* Handle LSO (TSO) packets */
if (lso_header_size) {
/* Mark opcode as LSO */
op_own = cpu_to_be32(MLX4_OPCODE_LSO | (1 << 6)) |
((ring->prod & ring->size) ?
cpu_to_be32(MLX4_EN_BIT_DESC_OWN) : 0);
/* Fill in the LSO prefix */
tx_desc->lso.mss_hdr_size = cpu_to_be32(
skb_shinfo(skb)->gso_size << 16 | lso_header_size);
/* Copy headers;
* note that we already verified that it is linear */
memcpy(tx_desc->lso.header, skb->data, lso_header_size);
data = ((void *) &tx_desc->lso +
ALIGN(lso_header_size + 4, DS_SIZE));
priv->port_stats.tso_packets++;
i = ((skb->len - lso_header_size) / skb_shinfo(skb)->gso_size) +
!!((skb->len - lso_header_size) % skb_shinfo(skb)->gso_size);
ring->bytes += skb->len + (i - 1) * lso_header_size;
ring->packets += i;
} else {
/* Normal (Non LSO) packet */
op_own = cpu_to_be32(MLX4_OPCODE_SEND) |
((ring->prod & ring->size) ?
cpu_to_be32(MLX4_EN_BIT_DESC_OWN) : 0);
data = &tx_desc->data;
ring->bytes += max(skb->len, (unsigned int) ETH_ZLEN);
ring->packets++;
}
AVG_PERF_COUNTER(priv->pstats.tx_pktsz_avg, skb->len);
/* valid only for none inline segments */
tx_info->data_offset = (void *) data - (void *) tx_desc;
tx_info->linear = (lso_header_size < skb_headlen(skb) && !is_inline(skb, NULL)) ? 1 : 0;
data += skb_shinfo(skb)->nr_frags + tx_info->linear - 1;
if (!is_inline(skb, &fragptr)) {
/* Map fragments */
for (i = skb_shinfo(skb)->nr_frags - 1; i >= 0; i--) {
frag = &skb_shinfo(skb)->frags[i];
dma = pci_map_page(mdev->dev->pdev, frag->page, frag->page_offset,
frag->size, PCI_DMA_TODEVICE);
data->addr = cpu_to_be64(dma);
data->lkey = cpu_to_be32(mdev->mr.key);
wmb();
data->byte_count = cpu_to_be32(frag->size);
--data;
}
/* Map linear part */
if (tx_info->linear) {
dma = pci_map_single(mdev->dev->pdev, skb->data + lso_header_size,
skb_headlen(skb) - lso_header_size, PCI_DMA_TODEVICE);
data->addr = cpu_to_be64(dma);
data->lkey = cpu_to_be32(mdev->mr.key);
wmb();
data->byte_count = cpu_to_be32(skb_headlen(skb) - lso_header_size);
}
} else
build_inline_wqe(tx_desc, skb, real_size, &vlan_tag, tx_ind, fragptr);
ring->prod += nr_txbb;
/* If we used a bounce buffer then copy descriptor back into place */
if (tx_desc == (struct mlx4_en_tx_desc *) ring->bounce_buf)
tx_desc = mlx4_en_bounce_to_desc(priv, ring, index, desc_size);
/* Run destructor before passing skb to HW */
if (likely(!skb_shared(skb)))
skb_orphan(skb);
/* Ensure new descirptor hits memory
* before setting ownership of this descriptor to HW */
wmb();
tx_desc->ctrl.owner_opcode = op_own;
/* Ring doorbell! */
wmb();
writel(ring->doorbell_qpn, mdev->uar_map + MLX4_SEND_DOORBELL);
dev->trans_start = jiffies;
/* Poll CQ here */
mlx4_en_xmit_poll(priv, tx_ind);
return 0;
}
drivers/net/mlx4/eq.c
View file @ 724bdd09
......@@ -558,7 +558,7 @@ int mlx4_init_eq_table(struct mlx4_dev *dev)
int i;
err = mlx4_bitmap_init(&priv->eq_table.bitmap, dev->caps.num_eqs,
dev->caps.num_eqs - 1, dev->caps.reserved_eqs);
dev->caps.num_eqs - 1, dev->caps.reserved_eqs, 0);
if (err)
return err;
......
drivers/net/mlx4/fw.c
View file @ 724bdd09
......@@ -88,6 +88,7 @@ static void dump_dev_cap_flags(struct mlx4_dev *dev, u32 flags)
[ 8] = "P_Key violation counter",
[ 9] = "Q_Key violation counter",
[10] = "VMM",
[12] = "DPDP",
[16] = "MW support",
[17] = "APM support",
[18] = "Atomic ops support",
......@@ -346,7 +347,7 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
MLX4_GET(field, outbox, QUERY_DEV_CAP_VL_PORT_OFFSET);
dev_cap->max_vl[i] = field >> 4;
MLX4_GET(field, outbox, QUERY_DEV_CAP_MTU_WIDTH_OFFSET);
dev_cap->max_mtu[i] = field >> 4;
dev_cap->ib_mtu[i] = field >> 4;
dev_cap->max_port_width[i] = field & 0xf;
MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_GID_OFFSET);
dev_cap->max_gids[i] = 1 << (field & 0xf);
......@@ -354,9 +355,13 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
dev_cap->max_pkeys[i] = 1 << (field & 0xf);
}
} else {
#define QUERY_PORT_SUPPORTED_TYPE_OFFSET 0x00
#define QUERY_PORT_MTU_OFFSET 0x01
#define QUERY_PORT_ETH_MTU_OFFSET 0x02
#define QUERY_PORT_WIDTH_OFFSET 0x06
#define QUERY_PORT_MAX_GID_PKEY_OFFSET 0x07
#define QUERY_PORT_MAC_OFFSET 0x08
#define QUERY_PORT_MAX_MACVLAN_OFFSET 0x0a
#define QUERY_PORT_MAX_VL_OFFSET 0x0b
for (i = 1; i <= dev_cap->num_ports; ++i) {
......@@ -365,8 +370,10 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
if (err)
goto out;
MLX4_GET(field, outbox, QUERY_PORT_SUPPORTED_TYPE_OFFSET);
dev_cap->supported_port_types[i] = field & 3;
MLX4_GET(field, outbox, QUERY_PORT_MTU_OFFSET);
dev_cap->max_mtu[i] = field & 0xf;
dev_cap->ib_mtu[i] = field & 0xf;
MLX4_GET(field, outbox, QUERY_PORT_WIDTH_OFFSET);
dev_cap->max_port_width[i] = field & 0xf;
MLX4_GET(field, outbox, QUERY_PORT_MAX_GID_PKEY_OFFSET);
......@@ -374,6 +381,11 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
dev_cap->max_pkeys[i] = 1 << (field & 0xf);
MLX4_GET(field, outbox, QUERY_PORT_MAX_VL_OFFSET);
dev_cap->max_vl[i] = field & 0xf;
MLX4_GET(field, outbox, QUERY_PORT_MAX_MACVLAN_OFFSET);
dev_cap->log_max_macs[i] = field & 0xf;
dev_cap->log_max_vlans[i] = field >> 4;
MLX4_GET(dev_cap->eth_mtu[i], outbox, QUERY_PORT_ETH_MTU_OFFSET);
MLX4_GET(dev_cap->def_mac[i], outbox, QUERY_PORT_MAC_OFFSET);
}
}
......@@ -407,7 +419,7 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
mlx4_dbg(dev, "Max CQEs: %d, max WQEs: %d, max SRQ WQEs: %d\n",
dev_cap->max_cq_sz, dev_cap->max_qp_sz, dev_cap->max_srq_sz);
mlx4_dbg(dev, "Local CA ACK delay: %d, max MTU: %d, port width cap: %d\n",
dev_cap->local_ca_ack_delay, 128 << dev_cap->max_mtu[1],
dev_cap->local_ca_ack_delay, 128 << dev_cap->ib_mtu[1],
dev_cap->max_port_width[1]);
mlx4_dbg(dev, "Max SQ desc size: %d, max SQ S/G: %d\n",
dev_cap->max_sq_desc_sz, dev_cap->max_sq_sg);
......@@ -819,7 +831,7 @@ int mlx4_INIT_PORT(struct mlx4_dev *dev, int port)
flags |= (dev->caps.port_width_cap[port] & 0xf) << INIT_PORT_PORT_WIDTH_SHIFT;
MLX4_PUT(inbox, flags, INIT_PORT_FLAGS_OFFSET);
field = 128 << dev->caps.mtu_cap[port];
field = 128 << dev->caps.ib_mtu_cap[port];
MLX4_PUT(inbox, field, INIT_PORT_MTU_OFFSET);
field = dev->caps.gid_table_len[port];
MLX4_PUT(inbox, field, INIT_PORT_MAX_GID_OFFSET);
......
drivers/net/mlx4/fw.h
View file @ 724bdd09
......@@ -66,11 +66,13 @@ struct mlx4_dev_cap {
int local_ca_ack_delay;
int num_ports;
u32 max_msg_sz;
int max_mtu[MLX4_MAX_PORTS + 1];
int ib_mtu[MLX4_MAX_PORTS + 1];
int max_port_width[MLX4_MAX_PORTS + 1];
int max_vl[MLX4_MAX_PORTS + 1];
int max_gids[MLX4_MAX_PORTS + 1];
int max_pkeys[MLX4_MAX_PORTS + 1];
u64 def_mac[MLX4_MAX_PORTS + 1];
u16 eth_mtu[MLX4_MAX_PORTS + 1];
u16 stat_rate_support;
u32 flags;
int reserved_uars;
......@@ -102,6 +104,9 @@ struct mlx4_dev_cap {
u32 reserved_lkey;
u64 max_icm_sz;
int max_gso_sz;
u8 supported_port_types[MLX4_MAX_PORTS + 1];
u8 log_max_macs[MLX4_MAX_PORTS + 1];
u8 log_max_vlans[MLX4_MAX_PORTS + 1];
};
struct mlx4_adapter {
......
drivers/net/mlx4/main.c
View file @ 724bdd09
......@@ -85,6 +85,57 @@ static struct mlx4_profile default_profile = {
.num_mtt = 1 << 20,
};
static int log_num_mac = 2;
module_param_named(log_num_mac, log_num_mac, int, 0444);
MODULE_PARM_DESC(log_num_mac, "Log2 max number of MACs per ETH port (1-7)");
static int log_num_vlan;
module_param_named(log_num_vlan, log_num_vlan, int, 0444);
MODULE_PARM_DESC(log_num_vlan, "Log2 max number of VLANs per ETH port (0-7)");
static int use_prio;
module_param_named(use_prio, use_prio, bool, 0444);
MODULE_PARM_DESC(use_prio, "Enable steering by VLAN priority on ETH ports "
"(0/1, default 0)");
static int mlx4_check_port_params(struct mlx4_dev *dev,
enum mlx4_port_type *port_type)
{
int i;
for (i = 0; i < dev->caps.num_ports - 1; i++) {
if (port_type[i] != port_type[i+1] &&
!(dev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP)) {
mlx4_err(dev, "Only same port types supported "
"on this HCA, aborting.\n");
return -EINVAL;
}
}
if ((port_type[0] == MLX4_PORT_TYPE_ETH) &&
(port_type[1] == MLX4_PORT_TYPE_IB)) {
mlx4_err(dev, "eth-ib configuration is not supported.\n");
return -EINVAL;
}
for (i = 0; i < dev->caps.num_ports; i++) {
if (!(port_type[i] & dev->caps.supported_type[i+1])) {
mlx4_err(dev, "Requested port type for port %d is not "
"supported on this HCA\n", i + 1);
return -EINVAL;
}
}
return 0;
}
static void mlx4_set_port_mask(struct mlx4_dev *dev)
{
int i;
dev->caps.port_mask = 0;
for (i = 1; i <= dev->caps.num_ports; ++i)
if (dev->caps.port_type[i] == MLX4_PORT_TYPE_IB)
dev->caps.port_mask |= 1 << (i - 1);
}
static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
{
int err;
......@@ -120,10 +171,13 @@ static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
dev->caps.num_ports = dev_cap->num_ports;
for (i = 1; i <= dev->caps.num_ports; ++i) {
dev->caps.vl_cap[i] = dev_cap->max_vl[i];
dev->caps.mtu_cap[i] = dev_cap->max_mtu[i];
dev->caps.ib_mtu_cap[i] = dev_cap->ib_mtu[i];
dev->caps.gid_table_len[i] = dev_cap->max_gids[i];
dev->caps.pkey_table_len[i] = dev_cap->max_pkeys[i];
dev->caps.port_width_cap[i] = dev_cap->max_port_width[i];
dev->caps.eth_mtu_cap[i] = dev_cap->eth_mtu[i];
dev->caps.def_mac[i] = dev_cap->def_mac[i];
dev->caps.supported_type[i] = dev_cap->supported_port_types[i];
}
dev->caps.num_uars = dev_cap->uar_size / PAGE_SIZE;
......@@ -134,7 +188,6 @@ static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
dev->caps.max_rq_sg = dev_cap->max_rq_sg;
dev->caps.max_wqes = dev_cap->max_qp_sz;
dev->caps.max_qp_init_rdma = dev_cap->max_requester_per_qp;
dev->caps.reserved_qps = dev_cap->reserved_qps;
dev->caps.max_srq_wqes = dev_cap->max_srq_sz;
dev->caps.max_srq_sge = dev_cap->max_rq_sg - 1;
dev->caps.reserved_srqs = dev_cap->reserved_srqs;
......@@ -163,9 +216,138 @@ static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
dev->caps.stat_rate_support = dev_cap->stat_rate_support;
dev->caps.max_gso_sz = dev_cap->max_gso_sz;
dev->caps.log_num_macs = log_num_mac;
dev->caps.log_num_vlans = log_num_vlan;
dev->caps.log_num_prios = use_prio ? 3 : 0;
for (i = 1; i <= dev->caps.num_ports; ++i) {
if (dev->caps.supported_type[i] != MLX4_PORT_TYPE_ETH)
dev->caps.port_type[i] = MLX4_PORT_TYPE_IB;
else
dev->caps.port_type[i] = MLX4_PORT_TYPE_ETH;
if (dev->caps.log_num_macs > dev_cap->log_max_macs[i]) {
dev->caps.log_num_macs = dev_cap->log_max_macs[i];
mlx4_warn(dev, "Requested number of MACs is too much "
"for port %d, reducing to %d.\n",
i, 1 << dev->caps.log_num_macs);
}
if (dev->caps.log_num_vlans > dev_cap->log_max_vlans[i]) {
dev->caps.log_num_vlans = dev_cap->log_max_vlans[i];
mlx4_warn(dev, "Requested number of VLANs is too much "
"for port %d, reducing to %d.\n",
i, 1 << dev->caps.log_num_vlans);
}
}
mlx4_set_port_mask(dev);
dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW] = dev_cap->reserved_qps;
dev->caps.reserved_qps_cnt[MLX4_QP_REGION_ETH_ADDR] =
dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_ADDR] =
(1 << dev->caps.log_num_macs) *
(1 << dev->caps.log_num_vlans) *
(1 << dev->caps.log_num_prios) *
dev->caps.num_ports;
dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_EXCH] = MLX4_NUM_FEXCH;
dev->caps.reserved_qps = dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW] +
dev->caps.reserved_qps_cnt[MLX4_QP_REGION_ETH_ADDR] +
dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_ADDR] +
dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_EXCH];
return 0;
}
/*
* Change the port configuration of the device.
* Every user of this function must hold the port mutex.
*/
static int mlx4_change_port_types(struct mlx4_dev *dev,
enum mlx4_port_type *port_types)
{
int err = 0;
int change = 0;
int port;
for (port = 0; port < dev->caps.num_ports; port++) {
if (port_types[port] != dev->caps.port_type[port + 1]) {
change = 1;
dev->caps.port_type[port + 1] = port_types[port];
}
}
if (change) {
mlx4_unregister_device(dev);
for (port = 1; port <= dev->caps.num_ports; port++) {
mlx4_CLOSE_PORT(dev, port);
err = mlx4_SET_PORT(dev, port);
if (err) {
mlx4_err(dev, "Failed to set port %d, "
"aborting\n", port);
goto out;
}
}
mlx4_set_port_mask(dev);
err = mlx4_register_device(dev);
}
out:
return err;
}
static ssize_t show_port_type(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
port_attr);
struct mlx4_dev *mdev = info->dev;
return sprintf(buf, "%s\n",
mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_IB ?
"ib" : "eth");
}
static ssize_t set_port_type(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
port_attr);
struct mlx4_dev *mdev = info->dev;
struct mlx4_priv *priv = mlx4_priv(mdev);
enum mlx4_port_type types[MLX4_MAX_PORTS];
int i;
int err = 0;
if (!strcmp(buf, "ib\n"))
info->tmp_type = MLX4_PORT_TYPE_IB;
else if (!strcmp(buf, "eth\n"))
info->tmp_type = MLX4_PORT_TYPE_ETH;
else {
mlx4_err(mdev, "%s is not supported port type\n", buf);
return -EINVAL;
}
mutex_lock(&priv->port_mutex);
for (i = 0; i < mdev->caps.num_ports; i++)
types[i] = priv->port[i+1].tmp_type ? priv->port[i+1].tmp_type :
mdev->caps.port_type[i+1];
err = mlx4_check_port_params(mdev, types);
if (err)
goto out;
for (i = 1; i <= mdev->caps.num_ports; i++)
priv->port[i].tmp_type = 0;
err = mlx4_change_port_types(mdev, types);
out:
mutex_unlock(&priv->port_mutex);
return err ? err : count;
}
static int mlx4_load_fw(struct mlx4_dev *dev)
{
struct mlx4_priv *priv = mlx4_priv(dev);
......@@ -211,7 +393,8 @@ static int mlx4_init_cmpt_table(struct mlx4_dev *dev, u64 cmpt_base,
((u64) (MLX4_CMPT_TYPE_QP *
cmpt_entry_sz) << MLX4_CMPT_SHIFT),
cmpt_entry_sz, dev->caps.num_qps,
dev->caps.reserved_qps, 0, 0);
dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
0, 0);
if (err)
goto err;
......@@ -336,7 +519,8 @@ static int mlx4_init_icm(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap,
init_hca->qpc_base,
dev_cap->qpc_entry_sz,
dev->caps.num_qps,
dev->caps.reserved_qps, 0, 0);
dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
0, 0);
if (err) {
mlx4_err(dev, "Failed to map QP context memory, aborting.\n");
goto err_unmap_dmpt;
......@@ -346,7 +530,8 @@ static int mlx4_init_icm(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap,
init_hca->auxc_base,
dev_cap->aux_entry_sz,
dev->caps.num_qps,
dev->caps.reserved_qps, 0, 0);
dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
0, 0);
if (err) {
mlx4_err(dev, "Failed to map AUXC context memory, aborting.\n");
goto err_unmap_qp;
......@@ -356,7 +541,8 @@ static int mlx4_init_icm(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap,
init_hca->altc_base,
dev_cap->altc_entry_sz,
dev->caps.num_qps,
dev->caps.reserved_qps, 0, 0);
dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
0, 0);
if (err) {
mlx4_err(dev, "Failed to map ALTC context memory, aborting.\n");
goto err_unmap_auxc;
......@@ -366,7 +552,8 @@ static int mlx4_init_icm(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap,
init_hca->rdmarc_base,
dev_cap->rdmarc_entry_sz << priv->qp_table.rdmarc_shift,
dev->caps.num_qps,
dev->caps.reserved_qps, 0, 0);
dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
0, 0);
if (err) {
mlx4_err(dev, "Failed to map RDMARC context memory, aborting\n");
goto err_unmap_altc;
......@@ -565,6 +752,7 @@ static int mlx4_setup_hca(struct mlx4_dev *dev)
{
struct mlx4_priv *priv = mlx4_priv(dev);
int err;
int port;
err = mlx4_init_uar_table(dev);
if (err) {
......@@ -663,8 +851,20 @@ static int mlx4_setup_hca(struct mlx4_dev *dev)
goto err_qp_table_free;
}
for (port = 1; port <= dev->caps.num_ports; port++) {
err = mlx4_SET_PORT(dev, port);
if (err) {
mlx4_err(dev, "Failed to set port %d, aborting\n",
port);
goto err_mcg_table_free;
}
}
return 0;
err_mcg_table_free:
mlx4_cleanup_mcg_table(dev);
err_qp_table_free:
mlx4_cleanup_qp_table(dev);
......@@ -728,11 +928,45 @@ static void mlx4_enable_msi_x(struct mlx4_dev *dev)
priv->eq_table.eq[i].irq = dev->pdev->irq;
}
static int mlx4_init_port_info(struct mlx4_dev *dev, int port)
{
struct mlx4_port_info *info = &mlx4_priv(dev)->port[port];
int err = 0;
info->dev = dev;
info->port = port;
mlx4_init_mac_table(dev, &info->mac_table);
mlx4_init_vlan_table(dev, &info->vlan_table);
sprintf(info->dev_name, "mlx4_port%d", port);
info->port_attr.attr.name = info->dev_name;
info->port_attr.attr.mode = S_IRUGO | S_IWUSR;
info->port_attr.show = show_port_type;
info->port_attr.store = set_port_type;
err = device_create_file(&dev->pdev->dev, &info->port_attr);
if (err) {
mlx4_err(dev, "Failed to create file for port %d\n", port);
info->port = -1;
}
return err;
}
static void mlx4_cleanup_port_info(struct mlx4_port_info *info)
{
if (info->port < 0)
return;
device_remove_file(&info->dev->pdev->dev, &info->port_attr);
}
static int __mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
{
struct mlx4_priv *priv;
struct mlx4_dev *dev;
int err;
int port;
printk(KERN_INFO PFX "Initializing %s\n",
pci_name(pdev));
......@@ -807,6 +1041,8 @@ static int __mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
INIT_LIST_HEAD(&priv->ctx_list);
spin_lock_init(&priv->ctx_lock);
mutex_init(&priv->port_mutex);
INIT_LIST_HEAD(&priv->pgdir_list);
mutex_init(&priv->pgdir_mutex);
......@@ -842,15 +1078,24 @@ static int __mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
if (err)
goto err_close;
for (port = 1; port <= dev->caps.num_ports; port++) {
err = mlx4_init_port_info(dev, port);
if (err)
goto err_port;
}
err = mlx4_register_device(dev);
if (err)
goto err_cleanup;
goto err_port;
pci_set_drvdata(pdev, dev);
return 0;
err_cleanup:
err_port:
for (port = 1; port <= dev->caps.num_ports; port++)
mlx4_cleanup_port_info(&priv->port[port]);
mlx4_cleanup_mcg_table(dev);
mlx4_cleanup_qp_table(dev);
mlx4_cleanup_srq_table(dev);
......@@ -907,8 +1152,10 @@ static void mlx4_remove_one(struct pci_dev *pdev)
if (dev) {
mlx4_unregister_device(dev);
for (p = 1; p <= dev->caps.num_ports; ++p)
for (p = 1; p <= dev->caps.num_ports; p++) {
mlx4_cleanup_port_info(&priv->port[p]);
mlx4_CLOSE_PORT(dev, p);
}
mlx4_cleanup_mcg_table(dev);
mlx4_cleanup_qp_table(dev);
......@@ -948,6 +1195,8 @@ static struct pci_device_id mlx4_pci_table[] = {
{ PCI_VDEVICE(MELLANOX, 0x6354) }, /* MT25408 "Hermon" QDR */
{ PCI_VDEVICE(MELLANOX, 0x6732) }, /* MT25408 "Hermon" DDR PCIe gen2 */
{ PCI_VDEVICE(MELLANOX, 0x673c) }, /* MT25408 "Hermon" QDR PCIe gen2 */
{ PCI_VDEVICE(MELLANOX, 0x6368) }, /* MT25408 "Hermon" EN 10GigE */
{ PCI_VDEVICE(MELLANOX, 0x6750) }, /* MT25408 "Hermon" EN 10GigE PCIe gen2 */
{ 0, }
};
......@@ -960,10 +1209,28 @@ static struct pci_driver mlx4_driver = {
.remove = __devexit_p(mlx4_remove_one)
};
static int __init mlx4_verify_params(void)
{
if ((log_num_mac < 0) || (log_num_mac > 7)) {
printk(KERN_WARNING "mlx4_core: bad num_mac: %d\n", log_num_mac);
return -1;
}
if ((log_num_vlan < 0) || (log_num_vlan > 7)) {
printk(KERN_WARNING "mlx4_core: bad num_vlan: %d\n", log_num_vlan);
return -1;
}
return 0;
}
static int __init mlx4_init(void)
{
int ret;
if (mlx4_verify_params())
return -EINVAL;
ret = mlx4_catas_init();
if (ret)
return ret;
......
drivers/net/mlx4/mcg.c
View file @ 724bdd09
......@@ -368,8 +368,8 @@ int mlx4_init_mcg_table(struct mlx4_dev *dev)
struct mlx4_priv *priv = mlx4_priv(dev);
int err;
err = mlx4_bitmap_init(&priv->mcg_table.bitmap,
dev->caps.num_amgms, dev->caps.num_amgms - 1, 0);
err = mlx4_bitmap_init(&priv->mcg_table.bitmap, dev->caps.num_amgms,
dev->caps.num_amgms - 1, 0, 0);
if (err)
return err;
......
drivers/net/mlx4/mlx4.h
View file @ 724bdd09
......@@ -111,6 +111,7 @@ struct mlx4_bitmap {
u32 last;
u32 top;
u32 max;
u32 reserved_top;
u32 mask;
spinlock_t lock;
unsigned long *table;
......@@ -251,6 +252,38 @@ struct mlx4_catas_err {
struct list_head list;
};
#define MLX4_MAX_MAC_NUM 128
#define MLX4_MAC_TABLE_SIZE (MLX4_MAX_MAC_NUM << 3)
struct mlx4_mac_table {
__be64 entries[MLX4_MAX_MAC_NUM];
int refs[MLX4_MAX_MAC_NUM];
struct mutex mutex;
int total;
int max;
};
#define MLX4_MAX_VLAN_NUM 128
#define MLX4_VLAN_TABLE_SIZE (MLX4_MAX_VLAN_NUM << 2)
struct mlx4_vlan_table {
__be32 entries[MLX4_MAX_VLAN_NUM];
int refs[MLX4_MAX_VLAN_NUM];
struct mutex mutex;
int total;
int max;
};
struct mlx4_port_info {
struct mlx4_dev *dev;
int port;
char dev_name[16];
struct device_attribute port_attr;
enum mlx4_port_type tmp_type;
struct mlx4_mac_table mac_table;
struct mlx4_vlan_table vlan_table;
};
struct mlx4_priv {
struct mlx4_dev dev;
......@@ -279,6 +312,8 @@ struct mlx4_priv {
struct mlx4_uar driver_uar;
void __iomem *kar;
struct mlx4_port_info port[MLX4_MAX_PORTS + 1];
struct mutex port_mutex;
};
static inline struct mlx4_priv *mlx4_priv(struct mlx4_dev *dev)
......@@ -288,7 +323,10 @@ static inline struct mlx4_priv *mlx4_priv(struct mlx4_dev *dev)
u32 mlx4_bitmap_alloc(struct mlx4_bitmap *bitmap);
void mlx4_bitmap_free(struct mlx4_bitmap *bitmap, u32 obj);
int mlx4_bitmap_init(struct mlx4_bitmap *bitmap, u32 num, u32 mask, u32 reserved);
u32 mlx4_bitmap_alloc_range(struct mlx4_bitmap *bitmap, int cnt, int align);
void mlx4_bitmap_free_range(struct mlx4_bitmap *bitmap, u32 obj, int cnt);
int mlx4_bitmap_init(struct mlx4_bitmap *bitmap, u32 num, u32 mask,
u32 reserved_bot, u32 resetrved_top);
void mlx4_bitmap_cleanup(struct mlx4_bitmap *bitmap);
int mlx4_reset(struct mlx4_dev *dev);
......@@ -346,4 +384,9 @@ void mlx4_srq_event(struct mlx4_dev *dev, u32 srqn, int event_type);
void mlx4_handle_catas_err(struct mlx4_dev *dev);
void mlx4_init_mac_table(struct mlx4_dev *dev, struct mlx4_mac_table *table);
void mlx4_init_vlan_table(struct mlx4_dev *dev, struct mlx4_vlan_table *table);
int mlx4_SET_PORT(struct mlx4_dev *dev, u8 port);
#endif /* MLX4_H */
drivers/net/mlx4/mlx4_en.h 0 → 100644
View file @ 724bdd09
/*
* Copyright (c) 2007 Mellanox Technologies. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
*/
#ifndef _MLX4_EN_H_
#define _MLX4_EN_H_
#include <linux/compiler.h>
#include <linux/list.h>
#include <linux/mutex.h>
#include <linux/netdevice.h>
#include <linux/inet_lro.h>
#include <linux/mlx4/device.h>
#include <linux/mlx4/qp.h>
#include <linux/mlx4/cq.h>
#include <linux/mlx4/srq.h>
#include <linux/mlx4/doorbell.h>
#include "en_port.h"
#define DRV_NAME "mlx4_en"
#define DRV_VERSION "1.4.0"
#define DRV_RELDATE "Sep 2008"
#define MLX4_EN_MSG_LEVEL (NETIF_MSG_LINK | NETIF_MSG_IFDOWN)
#define mlx4_dbg(mlevel, priv, format, arg...) \
if (NETIF_MSG_##mlevel & priv->msg_enable) \
printk(KERN_DEBUG "%s %s: " format , DRV_NAME ,\
(&priv->mdev->pdev->dev)->bus_id , ## arg)
#define mlx4_err(mdev, format, arg...) \
printk(KERN_ERR "%s %s: " format , DRV_NAME ,\
(&mdev->pdev->dev)->bus_id , ## arg)
#define mlx4_info(mdev, format, arg...) \
printk(KERN_INFO "%s %s: " format , DRV_NAME ,\
(&mdev->pdev->dev)->bus_id , ## arg)
#define mlx4_warn(mdev, format, arg...) \
printk(KERN_WARNING "%s %s: " format , DRV_NAME ,\
(&mdev->pdev->dev)->bus_id , ## arg)
/*
* Device constants
*/
#define MLX4_EN_PAGE_SHIFT 12
#define MLX4_EN_PAGE_SIZE (1 << MLX4_EN_PAGE_SHIFT)
#define MAX_TX_RINGS 16
#define MAX_RX_RINGS 16
#define MAX_RSS_MAP_SIZE 64
#define RSS_FACTOR 2
#define TXBB_SIZE 64
#define HEADROOM (2048 / TXBB_SIZE + 1)
#define MAX_LSO_HDR_SIZE 92
#define STAMP_STRIDE 64
#define STAMP_DWORDS (STAMP_STRIDE / 4)
#define STAMP_SHIFT 31
#define STAMP_VAL 0x7fffffff
#define STATS_DELAY (HZ / 4)
/* Typical TSO descriptor with 16 gather entries is 352 bytes... */
#define MAX_DESC_SIZE 512
#define MAX_DESC_TXBBS (MAX_DESC_SIZE / TXBB_SIZE)
/*
* OS related constants and tunables
*/
#define MLX4_EN_WATCHDOG_TIMEOUT (15 * HZ)
#define MLX4_EN_ALLOC_ORDER 2
#define MLX4_EN_ALLOC_SIZE (PAGE_SIZE << MLX4_EN_ALLOC_ORDER)
#define MLX4_EN_MAX_LRO_DESCRIPTORS 32
/* Receive fragment sizes; we use at most 4 fragments (for 9600 byte MTU
* and 4K allocations) */
enum {
FRAG_SZ0 = 512 - NET_IP_ALIGN,
FRAG_SZ1 = 1024,
FRAG_SZ2 = 4096,
FRAG_SZ3 = MLX4_EN_ALLOC_SIZE
};
#define MLX4_EN_MAX_RX_FRAGS 4
/* Minimum ring size for our page-allocation sceme to work */
#define MLX4_EN_MIN_RX_SIZE (MLX4_EN_ALLOC_SIZE / SMP_CACHE_BYTES)
#define MLX4_EN_MIN_TX_SIZE (4096 / TXBB_SIZE)
#define MLX4_EN_TX_RING_NUM 9
#define MLX4_EN_DEF_TX_RING_SIZE 1024
#define MLX4_EN_DEF_RX_RING_SIZE 1024
/* Target number of bytes to coalesce with interrupt moderation */
#define MLX4_EN_RX_COAL_TARGET 0x20000
#define MLX4_EN_RX_COAL_TIME 0x10
#define MLX4_EN_TX_COAL_PKTS 5
#define MLX4_EN_TX_COAL_TIME 0x80
#define MLX4_EN_RX_RATE_LOW 400000
#define MLX4_EN_RX_COAL_TIME_LOW 0
#define MLX4_EN_RX_RATE_HIGH 450000
#define MLX4_EN_RX_COAL_TIME_HIGH 128
#define MLX4_EN_RX_SIZE_THRESH 1024
#define MLX4_EN_RX_RATE_THRESH (1000000 / MLX4_EN_RX_COAL_TIME_HIGH)
#define MLX4_EN_SAMPLE_INTERVAL 0
#define MLX4_EN_AUTO_CONF 0xffff
#define MLX4_EN_DEF_RX_PAUSE 1
#define MLX4_EN_DEF_TX_PAUSE 1
/* Interval between sucessive polls in the Tx routine when polling is used
instead of interrupts (in per-core Tx rings) - should be power of 2 */
#define MLX4_EN_TX_POLL_MODER 16
#define MLX4_EN_TX_POLL_TIMEOUT (HZ / 4)
#define ETH_LLC_SNAP_SIZE 8
#define SMALL_PACKET_SIZE (256 - NET_IP_ALIGN)
#define HEADER_COPY_SIZE (128 - NET_IP_ALIGN)
#define MLX4_EN_MIN_MTU 46
#define ETH_BCAST 0xffffffffffffULL
#ifdef MLX4_EN_PERF_STAT
/* Number of samples to 'average' */
#define AVG_SIZE 128
#define AVG_FACTOR 1024
#define NUM_PERF_STATS NUM_PERF_COUNTERS
#define INC_PERF_COUNTER(cnt) (++(cnt))
#define ADD_PERF_COUNTER(cnt, add) ((cnt) += (add))
#define AVG_PERF_COUNTER(cnt, sample) \
((cnt) = ((cnt) * (AVG_SIZE - 1) + (sample) * AVG_FACTOR) / AVG_SIZE)
#define GET_PERF_COUNTER(cnt) (cnt)
#define GET_AVG_PERF_COUNTER(cnt) ((cnt) / AVG_FACTOR)
#else
#define NUM_PERF_STATS 0
#define INC_PERF_COUNTER(cnt) do {} while (0)
#define ADD_PERF_COUNTER(cnt, add) do {} while (0)
#define AVG_PERF_COUNTER(cnt, sample) do {} while (0)
#define GET_PERF_COUNTER(cnt) (0)
#define GET_AVG_PERF_COUNTER(cnt) (0)
#endif /* MLX4_EN_PERF_STAT */
/*
* Configurables
*/
enum cq_type {
RX = 0,
TX = 1,
};
/*
* Useful macros
*/
#define ROUNDUP_LOG2(x) ilog2(roundup_pow_of_two(x))
#define XNOR(x, y) (!(x) == !(y))
#define ILLEGAL_MAC(addr) (addr == 0xffffffffffffULL || addr == 0x0)
struct mlx4_en_tx_info {
struct sk_buff *skb;
u32 nr_txbb;
u8 linear;
u8 data_offset;
};
#define MLX4_EN_BIT_DESC_OWN 0x80000000
#define CTRL_SIZE sizeof(struct mlx4_wqe_ctrl_seg)
#define MLX4_EN_MEMTYPE_PAD 0x100
#define DS_SIZE sizeof(struct mlx4_wqe_data_seg)
struct mlx4_en_tx_desc {
struct mlx4_wqe_ctrl_seg ctrl;
union {
struct mlx4_wqe_data_seg data; /* at least one data segment */
struct mlx4_wqe_lso_seg lso;
struct mlx4_wqe_inline_seg inl;
};
};
#define MLX4_EN_USE_SRQ 0x01000000
struct mlx4_en_rx_alloc {
struct page *page;
u16 offset;
};
struct mlx4_en_tx_ring {
struct mlx4_hwq_resources wqres;
u32 size ; /* number of TXBBs */
u32 size_mask;
u16 stride;
u16 cqn; /* index of port CQ associated with this ring */
u32 prod;
u32 cons;
u32 buf_size;
u32 doorbell_qpn;
void *buf;
u16 poll_cnt;
int blocked;
struct mlx4_en_tx_info *tx_info;
u8 *bounce_buf;
u32 last_nr_txbb;
struct mlx4_qp qp;
struct mlx4_qp_context context;
int qpn;
enum mlx4_qp_state qp_state;
struct mlx4_srq dummy;
unsigned long bytes;
unsigned long packets;
spinlock_t comp_lock;
};
struct mlx4_en_rx_desc {
struct mlx4_wqe_srq_next_seg next;
/* actual number of entries depends on rx ring stride */
struct mlx4_wqe_data_seg data[0];
};
struct mlx4_en_rx_ring {
struct mlx4_srq srq;
struct mlx4_hwq_resources wqres;
struct mlx4_en_rx_alloc page_alloc[MLX4_EN_MAX_RX_FRAGS];
struct net_lro_mgr lro;
u32 size ; /* number of Rx descs*/
u32 actual_size;
u32 size_mask;
u16 stride;
u16 log_stride;
u16 cqn; /* index of port CQ associated with this ring */
u32 prod;
u32 cons;
u32 buf_size;
int need_refill;
int full;
void *buf;
void *rx_info;
unsigned long bytes;
unsigned long packets;
};
static inline int mlx4_en_can_lro(__be16 status)
{
return (status & cpu_to_be16(MLX4_CQE_STATUS_IPV4 |
MLX4_CQE_STATUS_IPV4F |
MLX4_CQE_STATUS_IPV6 |
MLX4_CQE_STATUS_IPV4OPT |
MLX4_CQE_STATUS_TCP |
MLX4_CQE_STATUS_UDP |
MLX4_CQE_STATUS_IPOK)) ==
cpu_to_be16(MLX4_CQE_STATUS_IPV4 |
MLX4_CQE_STATUS_IPOK |
MLX4_CQE_STATUS_TCP);
}
struct mlx4_en_cq {
struct mlx4_cq mcq;
struct mlx4_hwq_resources wqres;
int ring;
spinlock_t lock;
struct net_device *dev;
struct napi_struct napi;
/* Per-core Tx cq processing support */
struct timer_list timer;
int size;
int buf_size;
unsigned vector;
enum cq_type is_tx;
u16 moder_time;
u16 moder_cnt;
int armed;
struct mlx4_cqe *buf;
#define MLX4_EN_OPCODE_ERROR 0x1e
};
struct mlx4_en_port_profile {
u32 flags;
u32 tx_ring_num;
u32 rx_ring_num;
u32 tx_ring_size;
u32 rx_ring_size;
};
struct mlx4_en_profile {
int rss_xor;
int num_lro;
u8 rss_mask;
u32 active_ports;
u32 small_pkt_int;
int rx_moder_cnt;
int rx_moder_time;
int auto_moder;
u8 rx_pause;
u8 rx_ppp;
u8 tx_pause;
u8 tx_ppp;
u8 no_reset;
struct mlx4_en_port_profile prof[MLX4_MAX_PORTS + 1];
};
struct mlx4_en_dev {
struct mlx4_dev *dev;
struct pci_dev *pdev;
struct mutex state_lock;
struct net_device *pndev[MLX4_MAX_PORTS + 1];
u32 port_cnt;
bool device_up;
struct mlx4_en_profile profile;
u32 LSO_support;
struct workqueue_struct *workqueue;
struct device *dma_device;
void __iomem *uar_map;
struct mlx4_uar priv_uar;
struct mlx4_mr mr;
u32 priv_pdn;
spinlock_t uar_lock;
};
struct mlx4_en_rss_map {
int size;
int base_qpn;
u16 map[MAX_RSS_MAP_SIZE];
struct mlx4_qp qps[MAX_RSS_MAP_SIZE];
enum mlx4_qp_state state[MAX_RSS_MAP_SIZE];
struct mlx4_qp indir_qp;
enum mlx4_qp_state indir_state;
};
struct mlx4_en_rss_context {
__be32 base_qpn;
__be32 default_qpn;
u16 reserved;
u8 hash_fn;
u8 flags;
__be32 rss_key[10];
};
struct mlx4_en_pkt_stats {
unsigned long broadcast;
unsigned long rx_prio[8];
unsigned long tx_prio[8];
#define NUM_PKT_STATS 17
};
struct mlx4_en_port_stats {
unsigned long lro_aggregated;
unsigned long lro_flushed;
unsigned long lro_no_desc;
unsigned long tso_packets;
unsigned long queue_stopped;
unsigned long wake_queue;
unsigned long tx_timeout;
unsigned long rx_alloc_failed;
unsigned long rx_chksum_good;
unsigned long rx_chksum_none;
unsigned long tx_chksum_offload;
#define NUM_PORT_STATS 11
};
struct mlx4_en_perf_stats {
u32 tx_poll;
u64 tx_pktsz_avg;
u32 inflight_avg;
u16 tx_coal_avg;
u16 rx_coal_avg;
u32 napi_quota;
#define NUM_PERF_COUNTERS 6
};
struct mlx4_en_frag_info {
u16 frag_size;
u16 frag_prefix_size;
u16 frag_stride;
u16 frag_align;
u16 last_offset;
};
struct mlx4_en_priv {
struct mlx4_en_dev *mdev;
struct mlx4_en_port_profile *prof;
struct net_device *dev;
struct vlan_group *vlgrp;
struct net_device_stats stats;
struct net_device_stats ret_stats;
spinlock_t stats_lock;
unsigned long last_moder_packets;
unsigned long last_moder_tx_packets;
unsigned long last_moder_bytes;
unsigned long last_moder_jiffies;
int last_moder_time;
u16 rx_usecs;
u16 rx_frames;
u16 tx_usecs;
u16 tx_frames;
u32 pkt_rate_low;
u16 rx_usecs_low;
u32 pkt_rate_high;
u16 rx_usecs_high;
u16 sample_interval;
u16 adaptive_rx_coal;
u32 msg_enable;
struct mlx4_hwq_resources res;
int link_state;
int last_link_state;
bool port_up;
int port;
int registered;
int allocated;
int stride;
int rx_csum;
u64 mac;
int mac_index;
unsigned max_mtu;
int base_qpn;
struct mlx4_en_rss_map rss_map;
u16 tx_prio_map[8];
u32 flags;
#define MLX4_EN_FLAG_PROMISC 0x1
u32 tx_ring_num;
u32 rx_ring_num;
u32 rx_skb_size;
struct mlx4_en_frag_info frag_info[MLX4_EN_MAX_RX_FRAGS];
u16 num_frags;
u16 log_rx_info;
struct mlx4_en_tx_ring tx_ring[MAX_TX_RINGS];
struct mlx4_en_rx_ring rx_ring[MAX_RX_RINGS];
struct mlx4_en_cq tx_cq[MAX_TX_RINGS];
struct mlx4_en_cq rx_cq[MAX_RX_RINGS];
struct work_struct mcast_task;
struct work_struct mac_task;
struct delayed_work refill_task;
struct work_struct watchdog_task;
struct work_struct linkstate_task;
struct delayed_work stats_task;
struct mlx4_en_perf_stats pstats;
struct mlx4_en_pkt_stats pkstats;
struct mlx4_en_port_stats port_stats;
struct dev_mc_list *mc_list;
struct mlx4_en_stat_out_mbox hw_stats;
};
void mlx4_en_destroy_netdev(struct net_device *dev);
int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
struct mlx4_en_port_profile *prof);
int mlx4_en_get_profile(struct mlx4_en_dev *mdev);
int mlx4_en_create_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq,
int entries, int ring, enum cq_type mode);
void mlx4_en_destroy_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq);
int mlx4_en_activate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq);
void mlx4_en_deactivate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq);
int mlx4_en_set_cq_moder(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq);
int mlx4_en_arm_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq);
void mlx4_en_poll_tx_cq(unsigned long data);
void mlx4_en_tx_irq(struct mlx4_cq *mcq);
int mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev);
int mlx4_en_create_tx_ring(struct mlx4_en_priv *priv, struct mlx4_en_tx_ring *ring,
u32 size, u16 stride);
void mlx4_en_destroy_tx_ring(struct mlx4_en_priv *priv, struct mlx4_en_tx_ring *ring);
int mlx4_en_activate_tx_ring(struct mlx4_en_priv *priv,
struct mlx4_en_tx_ring *ring,
int cq, int srqn);
void mlx4_en_deactivate_tx_ring(struct mlx4_en_priv *priv,
struct mlx4_en_tx_ring *ring);
int mlx4_en_create_rx_ring(struct mlx4_en_priv *priv,
struct mlx4_en_rx_ring *ring,
u32 size, u16 stride);
void mlx4_en_destroy_rx_ring(struct mlx4_en_priv *priv,
struct mlx4_en_rx_ring *ring);
int mlx4_en_activate_rx_rings(struct mlx4_en_priv *priv);
void mlx4_en_deactivate_rx_ring(struct mlx4_en_priv *priv,
struct mlx4_en_rx_ring *ring);
int mlx4_en_process_rx_cq(struct net_device *dev,
struct mlx4_en_cq *cq,
int budget);
int mlx4_en_poll_rx_cq(struct napi_struct *napi, int budget);
void mlx4_en_fill_qp_context(struct mlx4_en_priv *priv, int size, int stride,
int is_tx, int rss, int qpn, int cqn, int srqn,
struct mlx4_qp_context *context);
int mlx4_en_map_buffer(struct mlx4_buf *buf);
void mlx4_en_unmap_buffer(struct mlx4_buf *buf);
void mlx4_en_calc_rx_buf(struct net_device *dev);
void mlx4_en_set_default_rss_map(struct mlx4_en_priv *priv,
struct mlx4_en_rss_map *rss_map,
int num_entries, int num_rings);
void mlx4_en_set_prio_map(struct mlx4_en_priv *priv, u16 *prio_map, u32 ring_num);
int mlx4_en_config_rss_steer(struct mlx4_en_priv *priv);
void mlx4_en_release_rss_steer(struct mlx4_en_priv *priv);
int mlx4_en_free_tx_buf(struct net_device *dev, struct mlx4_en_tx_ring *ring);
void mlx4_en_rx_refill(struct work_struct *work);
void mlx4_en_rx_irq(struct mlx4_cq *mcq);
int mlx4_SET_MCAST_FLTR(struct mlx4_dev *dev, u8 port, u64 mac, u64 clear, u8 mode);
int mlx4_SET_VLAN_FLTR(struct mlx4_dev *dev, u8 port, struct vlan_group *grp);
int mlx4_SET_PORT_general(struct mlx4_dev *dev, u8 port, int mtu,
u8 pptx, u8 pfctx, u8 pprx, u8 pfcrx);
int mlx4_SET_PORT_qpn_calc(struct mlx4_dev *dev, u8 port, u32 base_qpn,
u8 promisc);
int mlx4_en_DUMP_ETH_STATS(struct mlx4_en_dev *mdev, u8 port, u8 reset);
/*
* Globals
*/
extern const struct ethtool_ops mlx4_en_ethtool_ops;
#endif
drivers/net/mlx4/mr.c
View file @ 724bdd09
......@@ -461,7 +461,7 @@ int mlx4_init_mr_table(struct mlx4_dev *dev)
int err;
err = mlx4_bitmap_init(&mr_table->mpt_bitmap, dev->caps.num_mpts,
~0, dev->caps.reserved_mrws);
~0, dev->caps.reserved_mrws, 0);
if (err)
return err;
......
drivers/net/mlx4/pd.c
View file @ 724bdd09
......@@ -62,7 +62,7 @@ int mlx4_init_pd_table(struct mlx4_dev *dev)
struct mlx4_priv *priv = mlx4_priv(dev);
return mlx4_bitmap_init(&priv->pd_bitmap, dev->caps.num_pds,
(1 << 24) - 1, dev->caps.reserved_pds);
(1 << 24) - 1, dev->caps.reserved_pds, 0);
}
void mlx4_cleanup_pd_table(struct mlx4_dev *dev)
......@@ -100,7 +100,7 @@ int mlx4_init_uar_table(struct mlx4_dev *dev)
return mlx4_bitmap_init(&mlx4_priv(dev)->uar_table.bitmap,
dev->caps.num_uars, dev->caps.num_uars - 1,
max(128, dev->caps.reserved_uars));
max(128, dev->caps.reserved_uars), 0);
}
void mlx4_cleanup_uar_table(struct mlx4_dev *dev)
......
drivers/net/mlx4/port.c 0 → 100644
View file @ 724bdd09
/*
* Copyright (c) 2007 Mellanox Technologies. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <linux/errno.h>
#include <linux/if_ether.h>
#include <linux/mlx4/cmd.h>
#include "mlx4.h"
#define MLX4_MAC_VALID (1ull << 63)
#define MLX4_MAC_MASK 0xffffffffffffULL
#define MLX4_VLAN_VALID (1u << 31)
#define MLX4_VLAN_MASK 0xfff
void mlx4_init_mac_table(struct mlx4_dev *dev, struct mlx4_mac_table *table)
{
int i;
mutex_init(&table->mutex);
for (i = 0; i < MLX4_MAX_MAC_NUM; i++) {
table->entries[i] = 0;
table->refs[i] = 0;
}
table->max = 1 << dev->caps.log_num_macs;
table->total = 0;
}
void mlx4_init_vlan_table(struct mlx4_dev *dev, struct mlx4_vlan_table *table)
{
int i;
mutex_init(&table->mutex);
for (i = 0; i < MLX4_MAX_VLAN_NUM; i++) {
table->entries[i] = 0;
table->refs[i] = 0;
}
table->max = 1 << dev->caps.log_num_vlans;
table->total = 0;
}
static int mlx4_set_port_mac_table(struct mlx4_dev *dev, u8 port,
__be64 *entries)
{
struct mlx4_cmd_mailbox *mailbox;
u32 in_mod;
int err;
mailbox = mlx4_alloc_cmd_mailbox(dev);
if (IS_ERR(mailbox))
return PTR_ERR(mailbox);
memcpy(mailbox->buf, entries, MLX4_MAC_TABLE_SIZE);
in_mod = MLX4_SET_PORT_MAC_TABLE << 8 | port;
err = mlx4_cmd(dev, mailbox->dma, in_mod, 1, MLX4_CMD_SET_PORT,
MLX4_CMD_TIME_CLASS_B);
mlx4_free_cmd_mailbox(dev, mailbox);
return err;
}
int mlx4_register_mac(struct mlx4_dev *dev, u8 port, u64 mac, int *index)
{
struct mlx4_mac_table *table = &mlx4_priv(dev)->port[port].mac_table;
int i, err = 0;
int free = -1;
mlx4_dbg(dev, "Registering MAC: 0x%llx\n", (unsigned long long) mac);
mutex_lock(&table->mutex);
for (i = 0; i < MLX4_MAX_MAC_NUM - 1; i++) {
if (free < 0 && !table->refs[i]) {
free = i;
continue;
}
if (mac == (MLX4_MAC_MASK & be64_to_cpu(table->entries[i]))) {
/* MAC already registered, increase refernce count */
*index = i;
++table->refs[i];
goto out;
}
}
mlx4_dbg(dev, "Free MAC index is %d\n", free);
if (table->total == table->max) {
/* No free mac entries */
err = -ENOSPC;
goto out;
}
/* Register new MAC */
table->refs[free] = 1;
table->entries[free] = cpu_to_be64(mac | MLX4_MAC_VALID);
err = mlx4_set_port_mac_table(dev, port, table->entries);
if (unlikely(err)) {
mlx4_err(dev, "Failed adding MAC: 0x%llx\n", (unsigned long long) mac);
table->refs[free] = 0;
table->entries[free] = 0;
goto out;
}
*index = free;
++table->total;
out:
mutex_unlock(&table->mutex);
return err;
}
EXPORT_SYMBOL_GPL(mlx4_register_mac);
void mlx4_unregister_mac(struct mlx4_dev *dev, u8 port, int index)
{
struct mlx4_mac_table *table = &mlx4_priv(dev)->port[port].mac_table;
mutex_lock(&table->mutex);
if (!table->refs[index]) {
mlx4_warn(dev, "No MAC entry for index %d\n", index);
goto out;
}
if (--table->refs[index]) {
mlx4_warn(dev, "Have more references for index %d,"
"no need to modify MAC table\n", index);
goto out;
}
table->entries[index] = 0;
mlx4_set_port_mac_table(dev, port, table->entries);
--table->total;
out:
mutex_unlock(&table->mutex);
}
EXPORT_SYMBOL_GPL(mlx4_unregister_mac);
static int mlx4_set_port_vlan_table(struct mlx4_dev *dev, u8 port,
__be32 *entries)
{
struct mlx4_cmd_mailbox *mailbox;
u32 in_mod;
int err;
mailbox = mlx4_alloc_cmd_mailbox(dev);
if (IS_ERR(mailbox))
return PTR_ERR(mailbox);
memcpy(mailbox->buf, entries, MLX4_VLAN_TABLE_SIZE);
in_mod = MLX4_SET_PORT_VLAN_TABLE << 8 | port;
err = mlx4_cmd(dev, mailbox->dma, in_mod, 1, MLX4_CMD_SET_PORT,
MLX4_CMD_TIME_CLASS_B);
mlx4_free_cmd_mailbox(dev, mailbox);
return err;
}
int mlx4_register_vlan(struct mlx4_dev *dev, u8 port, u16 vlan, int *index)
{
struct mlx4_vlan_table *table = &mlx4_priv(dev)->port[port].vlan_table;
int i, err = 0;
int free = -1;
mutex_lock(&table->mutex);
for (i = MLX4_VLAN_REGULAR; i < MLX4_MAX_VLAN_NUM; i++) {
if (free < 0 && (table->refs[i] == 0)) {
free = i;
continue;
}
if (table->refs[i] &&
(vlan == (MLX4_VLAN_MASK &
be32_to_cpu(table->entries[i])))) {
/* Vlan already registered, increase refernce count */
*index = i;
++table->refs[i];
goto out;
}
}
if (table->total == table->max) {
/* No free vlan entries */
err = -ENOSPC;
goto out;
}
/* Register new MAC */
table->refs[free] = 1;
table->entries[free] = cpu_to_be32(vlan | MLX4_VLAN_VALID);
err = mlx4_set_port_vlan_table(dev, port, table->entries);
if (unlikely(err)) {
mlx4_warn(dev, "Failed adding vlan: %u\n", vlan);
table->refs[free] = 0;
table->entries[free] = 0;
goto out;
}
*index = free;
++table->total;
out:
mutex_unlock(&table->mutex);
return err;
}
EXPORT_SYMBOL_GPL(mlx4_register_vlan);
void mlx4_unregister_vlan(struct mlx4_dev *dev, u8 port, int index)
{
struct mlx4_vlan_table *table = &mlx4_priv(dev)->port[port].vlan_table;
if (index < MLX4_VLAN_REGULAR) {
mlx4_warn(dev, "Trying to free special vlan index %d\n", index);
return;
}
mutex_lock(&table->mutex);
if (!table->refs[index]) {
mlx4_warn(dev, "No vlan entry for index %d\n", index);
goto out;
}
if (--table->refs[index]) {
mlx4_dbg(dev, "Have more references for index %d,"
"no need to modify vlan table\n", index);
goto out;
}
table->entries[index] = 0;
mlx4_set_port_vlan_table(dev, port, table->entries);
--table->total;
out:
mutex_unlock(&table->mutex);
}
EXPORT_SYMBOL_GPL(mlx4_unregister_vlan);
int mlx4_SET_PORT(struct mlx4_dev *dev, u8 port)
{
struct mlx4_cmd_mailbox *mailbox;
int err;
u8 is_eth = dev->caps.port_type[port] == MLX4_PORT_TYPE_ETH;
mailbox = mlx4_alloc_cmd_mailbox(dev);
if (IS_ERR(mailbox))
return PTR_ERR(mailbox);
memset(mailbox->buf, 0, 256);
if (is_eth) {
((u8 *) mailbox->buf)[3] = 6;
((__be16 *) mailbox->buf)[4] = cpu_to_be16(1 << 15);
((__be16 *) mailbox->buf)[6] = cpu_to_be16(1 << 15);
}
err = mlx4_cmd(dev, mailbox->dma, port, is_eth, MLX4_CMD_SET_PORT,
MLX4_CMD_TIME_CLASS_B);
mlx4_free_cmd_mailbox(dev, mailbox);
return err;
}
drivers/net/mlx4/qp.c
View file @ 724bdd09
......@@ -147,19 +147,42 @@ int mlx4_qp_modify(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
}
EXPORT_SYMBOL_GPL(mlx4_qp_modify);
int mlx4_qp_alloc(struct mlx4_dev *dev, int sqpn, struct mlx4_qp *qp)
int mlx4_qp_reserve_range(struct mlx4_dev *dev, int cnt, int align, int *base)
{
struct mlx4_priv *priv = mlx4_priv(dev);
struct mlx4_qp_table *qp_table = &priv->qp_table;
int qpn;
qpn = mlx4_bitmap_alloc_range(&qp_table->bitmap, cnt, align);
if (qpn == -1)
return -ENOMEM;
*base = qpn;
return 0;
}
EXPORT_SYMBOL_GPL(mlx4_qp_reserve_range);
void mlx4_qp_release_range(struct mlx4_dev *dev, int base_qpn, int cnt)
{
struct mlx4_priv *priv = mlx4_priv(dev);
struct mlx4_qp_table *qp_table = &priv->qp_table;
if (base_qpn < dev->caps.sqp_start + 8)
return;
mlx4_bitmap_free_range(&qp_table->bitmap, base_qpn, cnt);
}
EXPORT_SYMBOL_GPL(mlx4_qp_release_range);
int mlx4_qp_alloc(struct mlx4_dev *dev, int qpn, struct mlx4_qp *qp)
{
struct mlx4_priv *priv = mlx4_priv(dev);
struct mlx4_qp_table *qp_table = &priv->qp_table;
int err;
if (sqpn)
qp->qpn = sqpn;
else {
qp->qpn = mlx4_bitmap_alloc(&qp_table->bitmap);
if (qp->qpn == -1)
return -ENOMEM;
}
if (!qpn)
return -EINVAL;
qp->qpn = qpn;
err = mlx4_table_get(dev, &qp_table->qp_table, qp->qpn);
if (err)
......@@ -208,9 +231,6 @@ int mlx4_qp_alloc(struct mlx4_dev *dev, int sqpn, struct mlx4_qp *qp)
mlx4_table_put(dev, &qp_table->qp_table, qp->qpn);
err_out:
if (!sqpn)
mlx4_bitmap_free(&qp_table->bitmap, qp->qpn);
return err;
}
EXPORT_SYMBOL_GPL(mlx4_qp_alloc);
......@@ -239,9 +259,6 @@ void mlx4_qp_free(struct mlx4_dev *dev, struct mlx4_qp *qp)
mlx4_table_put(dev, &qp_table->altc_table, qp->qpn);
mlx4_table_put(dev, &qp_table->auxc_table, qp->qpn);
mlx4_table_put(dev, &qp_table->qp_table, qp->qpn);
if (qp->qpn >= dev->caps.sqp_start + 8)
mlx4_bitmap_free(&qp_table->bitmap, qp->qpn);
}
EXPORT_SYMBOL_GPL(mlx4_qp_free);
......@@ -255,6 +272,7 @@ int mlx4_init_qp_table(struct mlx4_dev *dev)
{
struct mlx4_qp_table *qp_table = &mlx4_priv(dev)->qp_table;
int err;
int reserved_from_top = 0;
spin_lock_init(&qp_table->lock);
INIT_RADIX_TREE(&dev->qp_table_tree, GFP_ATOMIC);
......@@ -264,9 +282,40 @@ int mlx4_init_qp_table(struct mlx4_dev *dev)
* block of special QPs must be aligned to a multiple of 8, so
* round up.
*/
dev->caps.sqp_start = ALIGN(dev->caps.reserved_qps, 8);
dev->caps.sqp_start =
ALIGN(dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW], 8);
{
int sort[MLX4_NUM_QP_REGION];
int i, j, tmp;
int last_base = dev->caps.num_qps;
for (i = 1; i < MLX4_NUM_QP_REGION; ++i)
sort[i] = i;
for (i = MLX4_NUM_QP_REGION; i > 0; --i) {
for (j = 2; j < i; ++j) {
if (dev->caps.reserved_qps_cnt[sort[j]] >
dev->caps.reserved_qps_cnt[sort[j - 1]]) {
tmp = sort[j];
sort[j] = sort[j - 1];
sort[j - 1] = tmp;
}
}
}
for (i = 1; i < MLX4_NUM_QP_REGION; ++i) {
last_base -= dev->caps.reserved_qps_cnt[sort[i]];
dev->caps.reserved_qps_base[sort[i]] = last_base;
reserved_from_top +=
dev->caps.reserved_qps_cnt[sort[i]];
}
}
err = mlx4_bitmap_init(&qp_table->bitmap, dev->caps.num_qps,
(1 << 24) - 1, dev->caps.sqp_start + 8);
(1 << 23) - 1, dev->caps.sqp_start + 8,
reserved_from_top);
if (err)
return err;
......
drivers/net/mlx4/srq.c
View file @ 724bdd09
......@@ -245,7 +245,7 @@ int mlx4_init_srq_table(struct mlx4_dev *dev)
INIT_RADIX_TREE(&srq_table->tree, GFP_ATOMIC);
err = mlx4_bitmap_init(&srq_table->bitmap, dev->caps.num_srqs,
dev->caps.num_srqs - 1, dev->caps.reserved_srqs);
dev->caps.num_srqs - 1, dev->caps.reserved_srqs, 0);
if (err)
return err;
......
include/linux/mlx4/cmd.h
View file @ 724bdd09
......@@ -132,6 +132,15 @@ enum {
MLX4_MAILBOX_SIZE = 4096
};
enum {
/* set port opcode modifiers */
MLX4_SET_PORT_GENERAL = 0x0,
MLX4_SET_PORT_RQP_CALC = 0x1,
MLX4_SET_PORT_MAC_TABLE = 0x2,
MLX4_SET_PORT_VLAN_TABLE = 0x3,
MLX4_SET_PORT_PRIO_MAP = 0x4,
};
struct mlx4_dev;
struct mlx4_cmd_mailbox {
......
include/linux/mlx4/device.h
View file @ 724bdd09
......@@ -60,6 +60,7 @@ enum {
MLX4_DEV_CAP_FLAG_IPOIB_CSUM = 1 << 7,
MLX4_DEV_CAP_FLAG_BAD_PKEY_CNTR = 1 << 8,
MLX4_DEV_CAP_FLAG_BAD_QKEY_CNTR = 1 << 9,
MLX4_DEV_CAP_FLAG_DPDP = 1 << 12,
MLX4_DEV_CAP_FLAG_MEM_WINDOW = 1 << 16,
MLX4_DEV_CAP_FLAG_APM = 1 << 17,
MLX4_DEV_CAP_FLAG_ATOMIC = 1 << 18,
......@@ -145,6 +146,29 @@ enum {
MLX4_MTT_FLAG_PRESENT = 1
};
enum mlx4_qp_region {
MLX4_QP_REGION_FW = 0,
MLX4_QP_REGION_ETH_ADDR,
MLX4_QP_REGION_FC_ADDR,
MLX4_QP_REGION_FC_EXCH,
MLX4_NUM_QP_REGION
};
enum mlx4_port_type {
MLX4_PORT_TYPE_IB = 1 << 0,
MLX4_PORT_TYPE_ETH = 1 << 1,
};
enum mlx4_special_vlan_idx {
MLX4_NO_VLAN_IDX = 0,
MLX4_VLAN_MISS_IDX,
MLX4_VLAN_REGULAR
};
enum {
MLX4_NUM_FEXCH = 64 * 1024,
};
static inline u64 mlx4_fw_ver(u64 major, u64 minor, u64 subminor)
{
return (major << 32) | (minor << 16) | subminor;
......@@ -154,7 +178,9 @@ struct mlx4_caps {
u64 fw_ver;
int num_ports;
int vl_cap[MLX4_MAX_PORTS + 1];
int mtu_cap[MLX4_MAX_PORTS + 1];
int ib_mtu_cap[MLX4_MAX_PORTS + 1];
u64 def_mac[MLX4_MAX_PORTS + 1];
int eth_mtu_cap[MLX4_MAX_PORTS + 1];
int gid_table_len[MLX4_MAX_PORTS + 1];
int pkey_table_len[MLX4_MAX_PORTS + 1];
int local_ca_ack_delay;
......@@ -169,7 +195,6 @@ struct mlx4_caps {
int max_rq_desc_sz;
int max_qp_init_rdma;
int max_qp_dest_rdma;
int reserved_qps;
int sqp_start;
int num_srqs;
int max_srq_wqes;
......@@ -201,6 +226,15 @@ struct mlx4_caps {
u16 stat_rate_support;
u8 port_width_cap[MLX4_MAX_PORTS + 1];
int max_gso_sz;
int reserved_qps_cnt[MLX4_NUM_QP_REGION];
int reserved_qps;
int reserved_qps_base[MLX4_NUM_QP_REGION];
int log_num_macs;
int log_num_vlans;
int log_num_prios;
enum mlx4_port_type port_type[MLX4_MAX_PORTS + 1];
u8 supported_type[MLX4_MAX_PORTS + 1];
u32 port_mask;
};
struct mlx4_buf_list {
......@@ -355,6 +389,11 @@ struct mlx4_init_port_param {
u64 si_guid;
};
#define mlx4_foreach_port(port, dev, type) \
for ((port) = 1; (port) <= (dev)->caps.num_ports; (port)++) \
if (((type) == MLX4_PORT_TYPE_IB ? (dev)->caps.port_mask : \
~(dev)->caps.port_mask) & 1 << ((port) - 1))
int mlx4_buf_alloc(struct mlx4_dev *dev, int size, int max_direct,
struct mlx4_buf *buf);
void mlx4_buf_free(struct mlx4_dev *dev, int size, struct mlx4_buf *buf);
......@@ -400,7 +439,10 @@ int mlx4_cq_alloc(struct mlx4_dev *dev, int nent, struct mlx4_mtt *mtt,
int collapsed);
void mlx4_cq_free(struct mlx4_dev *dev, struct mlx4_cq *cq);
int mlx4_qp_alloc(struct mlx4_dev *dev, int sqpn, struct mlx4_qp *qp);
int mlx4_qp_reserve_range(struct mlx4_dev *dev, int cnt, int align, int *base);
void mlx4_qp_release_range(struct mlx4_dev *dev, int base_qpn, int cnt);
int mlx4_qp_alloc(struct mlx4_dev *dev, int qpn, struct mlx4_qp *qp);
void mlx4_qp_free(struct mlx4_dev *dev, struct mlx4_qp *qp);
int mlx4_srq_alloc(struct mlx4_dev *dev, u32 pdn, struct mlx4_mtt *mtt,
......@@ -416,6 +458,12 @@ int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
int block_mcast_loopback);
int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16]);
int mlx4_register_mac(struct mlx4_dev *dev, u8 port, u64 mac, int *index);
void mlx4_unregister_mac(struct mlx4_dev *dev, u8 port, int index);
int mlx4_register_vlan(struct mlx4_dev *dev, u8 port, u16 vlan, int *index);
void mlx4_unregister_vlan(struct mlx4_dev *dev, u8 port, int index);
int mlx4_map_phys_fmr(struct mlx4_dev *dev, struct mlx4_fmr *fmr, u64 *page_list,
int npages, u64 iova, u32 *lkey, u32 *rkey);
int mlx4_fmr_alloc(struct mlx4_dev *dev, u32 pd, u32 access, int max_pages,
......
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