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Commit 1dbd0fcf authored by Raghavendra Koushik's avatar Raghavendra Koushik Committed by Jeff Garzik
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[PATCH] S2io: cosmetic changes 

1. Indentation, change in comment styles, variable name changes etc.
2. Changed the value written to dtx_control register to force XGXS reset.
3. weight parameter(NAPI) changed to 90 for better performance.
Signed-off-by: default avatarRaghavendra Koushik <raghavendra.koushik@s2io.com>
Signed-off-by: default avatarRavinandan Arakali <ravinandan.arakali@s2io.com>
Signed-off-by: default avatarJeff Garzik <jgarzik@pobox.com>
parent 8a690d16
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Showing with 1063 additions and 1067 deletions
drivers/net/s2io-regs.h
View file @ 1dbd0fcf
......@@ -289,6 +289,8 @@ typedef struct _XENA_dev_config {
u64 tda_err_alarm;
u64 pcc_err_reg;
#define PCC_FB_ECC_DB_ERR vBIT(0xFF, 16, 8)
u64 pcc_err_mask;
u64 pcc_err_alarm;
......@@ -512,6 +514,7 @@ typedef struct _XENA_dev_config {
#define RX_PA_CFG_IGNORE_FRM_ERR BIT(1)
#define RX_PA_CFG_IGNORE_SNAP_OUI BIT(2)
#define RX_PA_CFG_IGNORE_LLC_CTRL BIT(3)
#define RX_PA_CFG_IGNORE_L2_ERR BIT(6)
u8 unused12[0x700 - 0x1D8];
......
drivers/net/s2io.c
View file @ 1dbd0fcf
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drivers/net/s2io.h
View file @ 1dbd0fcf
......@@ -16,6 +16,7 @@
#define TBD 0
#define BIT(loc) (0x8000000000000000ULL >> (loc))
#define vBIT(val, loc, sz) (((u64)val) << (64-loc-sz))
#define INV(d) ((d&0xff)<<24) | (((d>>8)&0xff)<<16) | (((d>>16)&0xff)<<8)| ((d>>24)&0xff)
#ifndef BOOL
#define BOOL int
......@@ -49,11 +50,13 @@ typedef enum xena_max_outstanding_splits {
#define ALIGN_SIZE 127
#define PCIX_COMMAND_REGISTER 0x62
#ifndef SET_ETHTOOL_OPS
#define SUPPORTED_10000baseT_Full (1 << 12)
#endif
/*
* Debug related variables.
*/
#define DEBUG_ON TRUE
/* different debug levels. */
#define ERR_DBG 0
#define INIT_DBG 1
......@@ -312,7 +315,7 @@ typedef struct stat_block {
/* Maintains Per FIFO related information. */
typedef struct tx_fifo_config {
#define MAX_AVAILABLE_TXDS 8192
u32 FifoLen; /* specifies len of FIFO upto 8192, ie no of TxDLs */
u32 fifo_len; /* specifies len of FIFO upto 8192, ie no of TxDLs */
/* Priority definition */
#define TX_FIFO_PRI_0 0 /*Highest */
#define TX_FIFO_PRI_1 1
......@@ -322,9 +325,9 @@ typedef struct tx_fifo_config {
#define TX_FIFO_PRI_5 5
#define TX_FIFO_PRI_6 6
#define TX_FIFO_PRI_7 7 /*lowest */
u8 FifoPriority; /* specifies pointer level for FIFO */
u8 fifo_priority; /* specifies pointer level for FIFO */
/* user should not set twos fifos with same pri */
u8 fNoSnoop;
u8 f_no_snoop;
#define NO_SNOOP_TXD 0x01
#define NO_SNOOP_TXD_BUFFER 0x02
} tx_fifo_config_t;
......@@ -332,7 +335,7 @@ typedef struct tx_fifo_config {
/* Maintains per Ring related information */
typedef struct rx_ring_config {
u32 NumRxd; /*No of RxDs per Rx Ring */
u32 num_rxd; /*No of RxDs per Rx Ring */
#define RX_RING_PRI_0 0 /* highest */
#define RX_RING_PRI_1 1
#define RX_RING_PRI_2 2
......@@ -342,70 +345,37 @@ typedef struct rx_ring_config {
#define RX_RING_PRI_6 6
#define RX_RING_PRI_7 7 /* lowest */
u8 RingPriority; /*Specifies service priority of ring */
u8 ring_priority; /*Specifies service priority of ring */
/* OSM should not set any two rings with same priority */
u8 RingOrg; /*Organization of ring */
u8 ring_org; /*Organization of ring */
#define RING_ORG_BUFF1 0x01
#define RX_RING_ORG_BUFF3 0x03
#define RX_RING_ORG_BUFF5 0x05
/* In case of 3 buffer recv. mode, size of three buffers is expected as.. */
#define BUFF_SZ_1 22 /* ethernet header */
#define BUFF_SZ_2 (64+64) /* max. IP+TCP header size */
#define BUFF_SZ_3 (1500-20-20) /* TCP payload */
#define BUFF_SZ_3_JUMBO (9600-20-20) /* Jumbo TCP payload */
u32 RxdThresh; /*No of used Rxds NIC can store before transfer to host */
#define DEFAULT_RXD_THRESHOLD 0x1 /* TODO */
u8 fNoSnoop;
u8 f_no_snoop;
#define NO_SNOOP_RXD 0x01
#define NO_SNOOP_RXD_BUFFER 0x02
u32 RxD_BackOff_Interval;
#define RXD_BACKOFF_INTERVAL_DEF 0x0
#define RXD_BACKOFF_INTERVAL_MIN 0x0
#define RXD_BACKOFF_INTERVAL_MAX 0x0
} rx_ring_config_t;
/* This structure provides contains values of the tunable parameters
* of the H/W
*/
struct config_param {
/* Tx Side */
u32 TxFIFONum; /*Number of Tx FIFOs */
u32 tx_fifo_num; /*Number of Tx FIFOs */
#define MAX_TX_FIFOS 8
tx_fifo_config_t TxCfg[MAX_TX_FIFOS]; /*Per-Tx FIFO config */
u32 MaxTxDs; /*Max no. of Tx buffer descriptor per TxDL */
BOOL TxVLANEnable; /*TRUE: Insert VLAN ID, FALSE: Don't insert */
#define TX_REQ_TIMEOUT_DEFAULT 0x0
#define TX_REQ_TIMEOUT_MIN 0x0
#define TX_REQ_TIMEOUT_MAX 0x0
u32 TxReqTimeOut;
BOOL TxFlow; /*Tx flow control enable */
BOOL RxFlow;
BOOL OverrideTxServiceState; /* TRUE: Overide, FALSE: Do not override
Use the new priority information
of service state. It is not recommended
to change but OSM can opt to do so */
#define MAX_SERVICE_STATES 36
u8 TxServiceState[MAX_SERVICE_STATES];
/* Array element represent 'priority'
* and array index represents
* 'Service state' e.g.
* TxServiceState[3]=7; it means
* Service state 3 is associated
* with priority 7 of a Tx FIFO */
u64 TxIntrType; /* Specifies if Tx Intr is UTILZ or PER_LIST type. */
tx_fifo_config_t tx_cfg[MAX_TX_FIFOS]; /*Per-Tx FIFO config */
u32 max_txds; /*Max no. of Tx buffer descriptor per TxDL */
u64 tx_intr_type;
/* Specifies if Tx Intr is UTILZ or PER_LIST type. */
/* Rx Side */
u32 RxRingNum; /*Number of receive rings */
u32 rx_ring_num; /*Number of receive rings */
#define MAX_RX_RINGS 8
#define MAX_RX_BLOCKS_PER_RING 150
rx_ring_config_t RxCfg[MAX_RX_RINGS]; /*Per-Rx Ring config */
BOOL RxVLANEnable; /*TRUE: Strip off VLAN tag from the frame,
FALSE: Don't strip off VLAN tag */
rx_ring_config_t rx_cfg[MAX_RX_RINGS]; /*Per-Rx Ring config */
#define HEADER_ETHERNET_II_802_3_SIZE 14
#define HEADER_802_2_SIZE 3
......@@ -419,23 +389,6 @@ struct config_param {
#define MAX_PYLD_JUMBO 9600
#define MAX_MTU_JUMBO (MAX_PYLD_JUMBO+18)
#define MAX_MTU_JUMBO_VLAN (MAX_PYLD_JUMBO+22)
u32 MTU; /*Maximum Payload */
BOOL JumboEnable; /*Enable Jumbo frames recv/send */
BOOL OverrideRxServiceState; /* TRUE: Overide, FALSE: Do not override
Use the new priority information
of service state. It is not recommended
to change but OSM can opt to do so */
#define MAX_SERVICE_STATES 36
u8 RxServiceState[MAX_SERVICE_STATES];
/* Array element represent 'priority'
* and array index represents
* 'Service state'e.g.
* RxServiceState[3]=7; it means
* Service state 3 is associated
* with priority 7 of a Rx FIFO */
BOOL StatAutoRefresh; /* When true, StatRefreshTime have valid value */
u32 StatRefreshTime; /*Time for refreshing statistics */
#define STAT_TRSF_PER_1_SECOND 0x208D5
};
/* Structure representing MAC Addrs */
......@@ -514,14 +467,9 @@ typedef struct _RxD_t {
#define SET_NUM_TAG(val) vBIT(val,16,32)
#define RXD_GET_BUFFER0_SIZE(Control_2) (u64)((Control_2 & vBIT(0xFFFF,0,16)))
/*
#define TXD_GET_BUFFER1_SIZE(Control_2) (u16)((Control_2 & MASK_BUFFER1_SIZE) >> (63-31))
#define TXD_GET_BUFFER2_SIZE(Control_2) (u16)((Control_2 & MASK_BUFFER2_SIZE) >> (63-47))
*/
u64 Buffer0_ptr;
} RxD_t;
/* Structure that represents the Rx descriptor block which contains
* 128 Rx descriptors.
*/
......@@ -531,11 +479,12 @@ typedef struct _RxD_block {
u64 reserved_0;
#define END_OF_BLOCK 0xFEFFFFFFFFFFFFFFULL
u64 reserved_1; /* 0xFEFFFFFFFFFFFFFF to mark last Rxd in this blk */
u64 reserved_2_pNext_RxD_block; /*@ Logical ptr to next */
u64 pNext_RxD_Blk_physical; /* Buff0_ptr.
In a 32 bit arch the upper 32 bits
should be 0 */
u64 reserved_1; /* 0xFEFFFFFFFFFFFFFF to mark last
* Rxd in this blk */
u64 reserved_2_pNext_RxD_block; /* Logical ptr to next */
u64 pNext_RxD_Blk_physical; /* Buff0_ptr.In a 32 bit arch
* the upper 32 bits should
* be 0 */
} RxD_block_t;
/* Structure which stores all the MAC control parameters */
......@@ -568,10 +517,6 @@ typedef tx_curr_get_info_t tx_curr_put_info_t;
*/
typedef struct mac_info {
/* rx side stuff */
u32 rxd_ring_mem_sz;
RxD_t *RxRing[MAX_RX_RINGS]; /* Logical Rx ring pointers */
dma_addr_t RxRing_Phy[MAX_RX_RINGS];
/* Put pointer info which indictes which RxD has to be replenished
* with a new buffer.
*/
......@@ -583,41 +528,29 @@ typedef struct mac_info {
rx_curr_get_info_t rx_curr_get_info[MAX_RX_RINGS];
u16 rmac_pause_time;
/* this will be used in receive function, this decides which ring would
be processed first. eg: ring with priority value 0 (highest) should
be processed first.
first 3 LSB bits represent ring number which should be processed
first, similarly next 3 bits represent next ring to be processed.
eg: value of _rx_ring_pri_map = 0x0000 003A means
ring #2 would be processed first and #7 would be processed next
*/
u32 _rx_ring_pri_map;
u16 mc_pause_threshold_q0q3;
u16 mc_pause_threshold_q4q7;
/* tx side stuff */
void *txd_list_mem; /* orignal pointer to allocated mem */
void *txd_list_mem; /* original pointer to allocated mem */
dma_addr_t txd_list_mem_phy;
u32 txd_list_mem_sz;
/* logical pointer of start of each Tx FIFO */
TxFIFO_element_t *tx_FIFO_start[MAX_TX_FIFOS];
/* logical pointer of start of TxDL which corresponds to each Tx FIFO */
/* The Phy and virtual mem loactions of the Tx descriptors. */
TxD_t *txdl_start[MAX_TX_FIFOS];
/* Same as txdl_start but phy addr */
dma_addr_t txdl_start_phy[MAX_TX_FIFOS];
/* Current offset within tx_FIFO_start, where driver would write new Tx frame*/
tx_curr_put_info_t tx_curr_put_info[MAX_TX_FIFOS];
tx_curr_get_info_t tx_curr_get_info[MAX_TX_FIFOS];
u16 txdl_len; /* length of a TxDL, same for all */
void *stats_mem; /* orignal pointer to allocated mem */
dma_addr_t stats_mem_phy; /* Physical address of the stat block */
u32 stats_mem_sz;
StatInfo_t *StatsInfo; /* Logical address of the stat block */
StatInfo_t *stats_info; /* Logical address of the stat block */
} mac_info_t;
/* structure representing the user defined MAC addresses */
......@@ -632,13 +565,20 @@ typedef struct rx_block_info {
dma_addr_t block_dma_addr;
} rx_block_info_t;
/* Default Tunable parameters of the NIC. */
#define DEFAULT_FIFO_LEN 4096
#define SMALL_RXD_CNT 30 * (MAX_RXDS_PER_BLOCK+1)
#define LARGE_RXD_CNT 100 * (MAX_RXDS_PER_BLOCK+1)
#define SMALL_BLK_CNT 30
#define LARGE_BLK_CNT 100
/* Structure representing one instance of the NIC */
typedef struct s2io_nic {
#define MAX_MAC_SUPPORTED 16
#define MAX_SUPPORTED_MULTICASTS MAX_MAC_SUPPORTED
macaddr_t defMacAddr[MAX_MAC_SUPPORTED];
macaddr_t preMacAddr[MAX_MAC_SUPPORTED];
macaddr_t def_mac_addr[MAX_MAC_SUPPORTED];
macaddr_t pre_mac_addr[MAX_MAC_SUPPORTED];
struct net_device_stats stats;
caddr_t bar0;
......@@ -671,8 +611,8 @@ typedef struct s2io_nic {
u32 irq;
atomic_t rx_bufs_left[MAX_RX_RINGS];
spinlock_t isr_lock;
spinlock_t tx_lock;
spinlock_t isr_lock;
#define PROMISC 1
#define ALL_MULTI 2
......@@ -691,20 +631,11 @@ typedef struct s2io_nic {
u16 tx_err_count;
u16 rx_err_count;
#if DEBUG_ON
u64 rxpkt_bytes;
u64 txpkt_bytes;
int int_cnt;
int rxint_cnt;
int txint_cnt;
u64 rxpkt_cnt;
#endif
/* Place holders for the virtual and physical addresses of
/*
* Place holders for the virtual and physical addresses of
* all the Rx Blocks
*/
struct rx_block_info
rx_blocks[MAX_RX_RINGS][MAX_RX_BLOCKS_PER_RING];
rx_block_info_t rx_blocks[MAX_RX_RINGS][MAX_RX_BLOCKS_PER_RING];
int block_count[MAX_RX_RINGS];
int pkt_cnt[MAX_RX_RINGS];
......@@ -742,19 +673,14 @@ typedef struct s2io_nic {
#define RESET_ERROR 1;
#define CMD_ERROR 2;
/* Default Tunable parameters of the NIC. */
#define DEFAULT_FIFO_LEN 4096
#define SMALL_RXD_CNT 40 * (MAX_RXDS_PER_BLOCK+1)
#define LARGE_RXD_CNT 100 * (MAX_RXDS_PER_BLOCK+1)
/* OS related system calls */
#ifndef readq
static inline u64 readq(void *addr)
{
u64 ret = 0;
ret = readl(addr + 4);
ret <<= 32;
ret |= readl(addr);
(u64) ret <<= 32;
(u64) ret |= readl(addr);
return ret;
}
......@@ -816,30 +742,36 @@ static inline void writeq(u64 val, void *addr)
/* DMA level Inressupts */
#define TXDMA_PFC_INT_M BIT(0)
/* PFC block interrupts */
#define TXDMA_PCC_INT_M BIT(2)
/* PFC block interrupts */
#define PFC_MISC_ERR_1 BIT(0) /* Interrupt to indicate FIFO full */
/* PCC block interrupts. */
#define PCC_FB_ECC_ERR vBIT(0xff, 16, 8) /* Interrupt to indicate
PCC_FB_ECC Error. */
/*
* Prototype declaration.
*/
static int __devinit s2io_init_nic(struct pci_dev *pdev,
const struct pci_device_id *pre);
static void __devexit s2io_rem_nic(struct pci_dev *pdev);
static int initSharedMem(struct s2io_nic *sp);
static void freeSharedMem(struct s2io_nic *sp);
static int initNic(struct s2io_nic *nic);
static int init_shared_mem(struct s2io_nic *sp);
static void free_shared_mem(struct s2io_nic *sp);
static int init_nic(struct s2io_nic *nic);
#ifndef CONFIG_S2IO_NAPI
static void rxIntrHandler(struct s2io_nic *sp);
static void rx_intr_handler(struct s2io_nic *sp);
#endif
static void txIntrHandler(struct s2io_nic *sp);
static void alarmIntrHandler(struct s2io_nic *sp);
static void tx_intr_handler(struct s2io_nic *sp);
static void alarm_intr_handler(struct s2io_nic *sp);
static int s2io_starter(void);
void s2io_closer(void);
static void s2io_tx_watchdog(struct net_device *dev);
static void s2io_tasklet(unsigned long dev_addr);
static void s2io_set_multicast(struct net_device *dev);
static int rxOsmHandler(nic_t * sp, u16 len, RxD_t * rxdp, int ring_no);
static int rx_osm_handler(nic_t * sp, u16 len, RxD_t * rxdp, int ring_no);
void s2io_link(nic_t * sp, int link);
void s2io_reset(nic_t * sp);
#ifdef CONFIG_S2IO_NAPI
......@@ -849,6 +781,10 @@ static void s2io_init_pci(nic_t * sp);
int s2io_set_mac_addr(struct net_device *dev, u8 * addr);
static irqreturn_t s2io_isr(int irq, void *dev_id, struct pt_regs *regs);
static int verify_xena_quiescence(u64 val64, int flag);
int verify_load_parm(void);
#ifdef SET_ETHTOOL_OPS
static struct ethtool_ops netdev_ethtool_ops;
#endif
static void s2io_set_link(unsigned long data);
#endif /* _S2IO_H */
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