Commit f2d254fa authored by Intiyaz Basha's avatar Intiyaz Basha Committed by David S. Miller

liquidio: Added support for trusted VF

When a VF is trusted, all promiscuous traffic will only be sent to that VF.
In normal operation promiscuous traffic is sent to the PF. There can be
only one trusted VF per PF
Signed-off-by: default avatarIntiyaz Basha <intiyaz.basha@cavium.com>
Signed-off-by: default avatarFelix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent cf57d49c
......@@ -91,6 +91,11 @@ static int octeon_console_debug_enabled(u32 console)
*/
#define LIO_SYNC_OCTEON_TIME_INTERVAL_MS 60000
struct lio_trusted_vf_ctx {
struct completion complete;
int status;
};
struct liquidio_rx_ctl_context {
int octeon_id;
......@@ -3265,10 +3270,120 @@ static int liquidio_get_vf_config(struct net_device *netdev, int vfidx,
ether_addr_copy(&ivi->mac[0], macaddr);
ivi->vlan = oct->sriov_info.vf_vlantci[vfidx] & VLAN_VID_MASK;
ivi->qos = oct->sriov_info.vf_vlantci[vfidx] >> VLAN_PRIO_SHIFT;
if (oct->sriov_info.trusted_vf.active &&
oct->sriov_info.trusted_vf.id == vfidx)
ivi->trusted = true;
else
ivi->trusted = false;
ivi->linkstate = oct->sriov_info.vf_linkstate[vfidx];
return 0;
}
static void trusted_vf_callback(struct octeon_device *oct_dev,
u32 status, void *ptr)
{
struct octeon_soft_command *sc = (struct octeon_soft_command *)ptr;
struct lio_trusted_vf_ctx *ctx;
ctx = (struct lio_trusted_vf_ctx *)sc->ctxptr;
ctx->status = status;
complete(&ctx->complete);
}
static int liquidio_send_vf_trust_cmd(struct lio *lio, int vfidx, bool trusted)
{
struct octeon_device *oct = lio->oct_dev;
struct lio_trusted_vf_ctx *ctx;
struct octeon_soft_command *sc;
int ctx_size, retval;
ctx_size = sizeof(struct lio_trusted_vf_ctx);
sc = octeon_alloc_soft_command(oct, 0, 0, ctx_size);
ctx = (struct lio_trusted_vf_ctx *)sc->ctxptr;
init_completion(&ctx->complete);
sc->iq_no = lio->linfo.txpciq[0].s.q_no;
/* vfidx is 0 based, but vf_num (param1) is 1 based */
octeon_prepare_soft_command(oct, sc, OPCODE_NIC,
OPCODE_NIC_SET_TRUSTED_VF, 0, vfidx + 1,
trusted);
sc->callback = trusted_vf_callback;
sc->callback_arg = sc;
sc->wait_time = 1000;
retval = octeon_send_soft_command(oct, sc);
if (retval == IQ_SEND_FAILED) {
retval = -1;
} else {
/* Wait for response or timeout */
if (wait_for_completion_timeout(&ctx->complete,
msecs_to_jiffies(2000)))
retval = ctx->status;
else
retval = -1;
}
octeon_free_soft_command(oct, sc);
return retval;
}
static int liquidio_set_vf_trust(struct net_device *netdev, int vfidx,
bool setting)
{
struct lio *lio = GET_LIO(netdev);
struct octeon_device *oct = lio->oct_dev;
if (strcmp(oct->fw_info.liquidio_firmware_version, "1.7.1") < 0) {
/* trusted vf is not supported by firmware older than 1.7.1 */
return -EOPNOTSUPP;
}
if (vfidx < 0 || vfidx >= oct->sriov_info.num_vfs_alloced) {
netif_info(lio, drv, lio->netdev, "Invalid vfidx %d\n", vfidx);
return -EINVAL;
}
if (setting) {
/* Set */
if (oct->sriov_info.trusted_vf.active &&
oct->sriov_info.trusted_vf.id == vfidx)
return 0;
if (oct->sriov_info.trusted_vf.active) {
netif_info(lio, drv, lio->netdev, "More than one trusted VF is not allowed\n");
return -EPERM;
}
} else {
/* Clear */
if (!oct->sriov_info.trusted_vf.active)
return 0;
}
if (!liquidio_send_vf_trust_cmd(lio, vfidx, setting)) {
if (setting) {
oct->sriov_info.trusted_vf.id = vfidx;
oct->sriov_info.trusted_vf.active = true;
} else {
oct->sriov_info.trusted_vf.active = false;
}
netif_info(lio, drv, lio->netdev, "VF %u is %strusted\n", vfidx,
setting ? "" : "not ");
} else {
netif_info(lio, drv, lio->netdev, "Failed to set VF trusted\n");
return -1;
}
return 0;
}
static int liquidio_set_vf_link_state(struct net_device *netdev, int vfidx,
int linkstate)
{
......@@ -3399,6 +3514,7 @@ static const struct net_device_ops lionetdevops = {
.ndo_set_vf_mac = liquidio_set_vf_mac,
.ndo_set_vf_vlan = liquidio_set_vf_vlan,
.ndo_get_vf_config = liquidio_get_vf_config,
.ndo_set_vf_trust = liquidio_set_vf_trust,
.ndo_set_vf_link_state = liquidio_set_vf_link_state,
};
......
......@@ -84,6 +84,7 @@ enum octeon_tag_type {
#define OPCODE_NIC_IF_CFG 0x09
#define OPCODE_NIC_VF_DRV_NOTICE 0x0A
#define OPCODE_NIC_INTRMOD_PARAMS 0x0B
#define OPCODE_NIC_SET_TRUSTED_VF 0x13
#define OPCODE_NIC_SYNC_OCTEON_TIME 0x14
#define VF_DRV_LOADED 1
#define VF_DRV_REMOVED -1
......@@ -918,6 +919,12 @@ union oct_nic_if_cfg {
} s;
};
struct lio_trusted_vf {
uint64_t active: 1;
uint64_t id : 8;
uint64_t reserved: 55;
};
struct lio_time {
s64 sec; /* seconds */
s64 nsec; /* nanoseconds */
......
......@@ -370,6 +370,8 @@ struct octeon_sriov_info {
u32 sriov_enabled;
struct lio_trusted_vf trusted_vf;
/*lookup table that maps DPI ring number to VF pci_dev struct pointer*/
struct pci_dev *dpiring_to_vfpcidev_lut[MAX_POSSIBLE_VFS];
......
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