bnx2x.h (a052997ea32164b2466daff8db5f783131184dae) bnx2x.h (65565884fba67d9254f32d239b0fb6c38fae88aa)
1/* bnx2x.h: Broadcom Everest network driver.
2 *
3 * Copyright (c) 2007-2012 Broadcom Corporation
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation.
8 *

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271
272#define SM_RX_ID 0
273#define SM_TX_ID 1
274
275/* defines for multiple tx priority indices */
276#define FIRST_TX_ONLY_COS_INDEX 1
277#define FIRST_TX_COS_INDEX 0
278
1/* bnx2x.h: Broadcom Everest network driver.
2 *
3 * Copyright (c) 2007-2012 Broadcom Corporation
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation.
8 *

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271
272#define SM_RX_ID 0
273#define SM_TX_ID 1
274
275/* defines for multiple tx priority indices */
276#define FIRST_TX_ONLY_COS_INDEX 1
277#define FIRST_TX_COS_INDEX 0
278
279/* defines for decodeing the fastpath index and the cos index out of the
280 * transmission queue index
281 */
282#define MAX_TXQS_PER_COS FP_SB_MAX_E1x
283
279#define MAX_TXQS_PER_COS FP_SB_MAX_E1x
280
284#define TXQ_TO_FP(txq_index) ((txq_index) % MAX_TXQS_PER_COS)
285#define TXQ_TO_COS(txq_index) ((txq_index) / MAX_TXQS_PER_COS)
286
287/* rules for calculating the cids of tx-only connections */
281/* rules for calculating the cids of tx-only connections */
288#define CID_TO_FP(cid) ((cid) % MAX_TXQS_PER_COS)
289#define CID_COS_TO_TX_ONLY_CID(cid, cos) (cid + cos * MAX_TXQS_PER_COS)
282#define CID_TO_FP(cid, bp) ((cid) % BNX2X_NUM_NON_CNIC_QUEUES(bp))
283#define CID_COS_TO_TX_ONLY_CID(cid, cos, bp) \
284 (cid + cos * BNX2X_NUM_NON_CNIC_QUEUES(bp))
290
291/* fp index inside class of service range */
285
286/* fp index inside class of service range */
292#define FP_COS_TO_TXQ(fp, cos) ((fp)->index + cos * MAX_TXQS_PER_COS)
287#define FP_COS_TO_TXQ(fp, cos, bp) \
288 ((fp)->index + cos * BNX2X_NUM_NON_CNIC_QUEUES(bp))
293
289
294/*
295 * 0..15 eth cos0
296 * 16..31 eth cos1 if applicable
297 * 32..47 eth cos2 If applicable
298 * fcoe queue follows eth queues (16, 32, 48 depending on cos)
290/* Indexes for transmission queues array:
291 * txdata for RSS i CoS j is at location i + (j * num of RSS)
292 * txdata for FCoE (if exist) is at location max cos * num of RSS
293 * txdata for FWD (if exist) is one location after FCoE
294 * txdata for OOO (if exist) is one location after FWD
299 */
295 */
300#define MAX_ETH_TXQ_IDX(bp) (MAX_TXQS_PER_COS * (bp)->max_cos)
301#define FCOE_TXQ_IDX(bp) (MAX_ETH_TXQ_IDX(bp))
296enum {
297 FCOE_TXQ_IDX_OFFSET,
298 FWD_TXQ_IDX_OFFSET,
299 OOO_TXQ_IDX_OFFSET,
300};
301#define MAX_ETH_TXQ_IDX(bp) (BNX2X_NUM_NON_CNIC_QUEUES(bp) * (bp)->max_cos)
302#ifdef BCM_CNIC
303#define FCOE_TXQ_IDX(bp) (MAX_ETH_TXQ_IDX(bp) + FCOE_TXQ_IDX_OFFSET)
304#endif
302
303/* fast path */
304/*
305 * This driver uses new build_skb() API :
306 * RX ring buffer contains pointer to kmalloc() data only,
307 * skb are built only after Hardware filled the frame.
308 */
309struct sw_rx_bd {

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476 u16 tx_bd_prod;
477 u16 tx_bd_cons;
478
479 unsigned long tx_pkt;
480
481 __le16 *tx_cons_sb;
482
483 int txq_index;
305
306/* fast path */
307/*
308 * This driver uses new build_skb() API :
309 * RX ring buffer contains pointer to kmalloc() data only,
310 * skb are built only after Hardware filled the frame.
311 */
312struct sw_rx_bd {

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479 u16 tx_bd_prod;
480 u16 tx_bd_cons;
481
482 unsigned long tx_pkt;
483
484 __le16 *tx_cons_sb;
485
486 int txq_index;
487 struct bnx2x_fastpath *parent_fp;
488 int tx_ring_size;
484};
485
486enum bnx2x_tpa_mode_t {
487 TPA_MODE_LRO,
488 TPA_MODE_GRO
489};
490
491struct bnx2x_fastpath {

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502
503 u32 rx_buf_size;
504
505 dma_addr_t status_blk_mapping;
506
507 enum bnx2x_tpa_mode_t mode;
508
509 u8 max_cos; /* actual number of active tx coses */
489};
490
491enum bnx2x_tpa_mode_t {
492 TPA_MODE_LRO,
493 TPA_MODE_GRO
494};
495
496struct bnx2x_fastpath {

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507
508 u32 rx_buf_size;
509
510 dma_addr_t status_blk_mapping;
511
512 enum bnx2x_tpa_mode_t mode;
513
514 u8 max_cos; /* actual number of active tx coses */
510 struct bnx2x_fp_txdata txdata[BNX2X_MULTI_TX_COS];
515 struct bnx2x_fp_txdata *txdata_ptr[BNX2X_MULTI_TX_COS];
511
512 struct sw_rx_bd *rx_buf_ring; /* BDs mappings ring */
513 struct sw_rx_page *rx_page_ring; /* SGE pages mappings ring */
514
515 struct eth_rx_bd *rx_desc_ring;
516 dma_addr_t rx_desc_mapping;
517
518 union eth_rx_cqe *rx_comp_ring;

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574
575};
576
577#define bnx2x_fp(bp, nr, var) (bp->fp[nr].var)
578
579/* Use 2500 as a mini-jumbo MTU for FCoE */
580#define BNX2X_FCOE_MINI_JUMBO_MTU 2500
581
516
517 struct sw_rx_bd *rx_buf_ring; /* BDs mappings ring */
518 struct sw_rx_page *rx_page_ring; /* SGE pages mappings ring */
519
520 struct eth_rx_bd *rx_desc_ring;
521 dma_addr_t rx_desc_mapping;
522
523 union eth_rx_cqe *rx_comp_ring;

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579
580};
581
582#define bnx2x_fp(bp, nr, var) (bp->fp[nr].var)
583
584/* Use 2500 as a mini-jumbo MTU for FCoE */
585#define BNX2X_FCOE_MINI_JUMBO_MTU 2500
586
582/* FCoE L2 `fastpath' entry is right after the eth entries */
583#define FCOE_IDX BNX2X_NUM_ETH_QUEUES(bp)
584#define bnx2x_fcoe_fp(bp) (&bp->fp[FCOE_IDX])
585#define bnx2x_fcoe(bp, var) (bnx2x_fcoe_fp(bp)->var)
586#define bnx2x_fcoe_tx(bp, var) (bnx2x_fcoe_fp(bp)-> \
587 txdata[FIRST_TX_COS_INDEX].var)
587#define FCOE_IDX_OFFSET 0
588
588
589#define FCOE_IDX(bp) (BNX2X_NUM_NON_CNIC_QUEUES(bp) + \
590 FCOE_IDX_OFFSET)
591#define bnx2x_fcoe_fp(bp) (&bp->fp[FCOE_IDX(bp)])
592#define bnx2x_fcoe(bp, var) (bnx2x_fcoe_fp(bp)->var)
593#define bnx2x_fcoe_tx(bp, var) (bnx2x_fcoe_fp(bp)-> \
594 txdata_ptr[FIRST_TX_COS_INDEX] \
595 ->var)
589
596
597
590#define IS_ETH_FP(fp) (fp->index < \
591 BNX2X_NUM_ETH_QUEUES(fp->bp))
592#ifdef BCM_CNIC
598#define IS_ETH_FP(fp) (fp->index < \
599 BNX2X_NUM_ETH_QUEUES(fp->bp))
600#ifdef BCM_CNIC
593#define IS_FCOE_FP(fp) (fp->index == FCOE_IDX)
594#define IS_FCOE_IDX(idx) ((idx) == FCOE_IDX)
601#define IS_FCOE_FP(fp) (fp->index == FCOE_IDX(fp->bp))
602#define IS_FCOE_IDX(idx) ((idx) == FCOE_IDX(bp))
595#else
596#define IS_FCOE_FP(fp) false
597#define IS_FCOE_IDX(idx) false
598#endif
599
600
601/* MC hsi */
602#define MAX_FETCH_BD 13 /* HW max BDs per packet */

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1182 struct list_head list;
1183};
1184
1185struct bnx2x {
1186 /* Fields used in the tx and intr/napi performance paths
1187 * are grouped together in the beginning of the structure
1188 */
1189 struct bnx2x_fastpath *fp;
603#else
604#define IS_FCOE_FP(fp) false
605#define IS_FCOE_IDX(idx) false
606#endif
607
608
609/* MC hsi */
610#define MAX_FETCH_BD 13 /* HW max BDs per packet */

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1190 struct list_head list;
1191};
1192
1193struct bnx2x {
1194 /* Fields used in the tx and intr/napi performance paths
1195 * are grouped together in the beginning of the structure
1196 */
1197 struct bnx2x_fastpath *fp;
1198 struct bnx2x_fp_txdata *bnx2x_txq;
1199 int bnx2x_txq_size;
1190 void __iomem *regview;
1191 void __iomem *doorbells;
1192 u16 db_size;
1193
1194 u8 pf_num; /* absolute PF number */
1195 u8 pfid; /* per-path PF number */
1196 int base_fw_ndsb; /**/
1197#define BP_PATH(bp) (CHIP_IS_E1x(bp) ? 0 : (bp->pf_num & 1))

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1384#define BNX2X_RX_MODE_NORMAL 1
1385#define BNX2X_RX_MODE_ALLMULTI 2
1386#define BNX2X_RX_MODE_PROMISC 3
1387#define BNX2X_MAX_MULTICAST 64
1388
1389 u8 igu_dsb_id;
1390 u8 igu_base_sb;
1391 u8 igu_sb_cnt;
1200 void __iomem *regview;
1201 void __iomem *doorbells;
1202 u16 db_size;
1203
1204 u8 pf_num; /* absolute PF number */
1205 u8 pfid; /* per-path PF number */
1206 int base_fw_ndsb; /**/
1207#define BP_PATH(bp) (CHIP_IS_E1x(bp) ? 0 : (bp->pf_num & 1))

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1394#define BNX2X_RX_MODE_NORMAL 1
1395#define BNX2X_RX_MODE_ALLMULTI 2
1396#define BNX2X_RX_MODE_PROMISC 3
1397#define BNX2X_MAX_MULTICAST 64
1398
1399 u8 igu_dsb_id;
1400 u8 igu_base_sb;
1401 u8 igu_sb_cnt;
1402
1392 dma_addr_t def_status_blk_mapping;
1393
1394 struct bnx2x_slowpath *slowpath;
1395 dma_addr_t slowpath_mapping;
1396
1397 /* Total number of FW statistics requests */
1398 u8 fw_stats_num;
1399

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1438/*
1439 * Maximum CID count that might be required by the bnx2x:
1440 * Max Tss * Max_Tx_Multi_Cos + CNIC L2 Clients (FCoE and iSCSI related)
1441 */
1442#define BNX2X_L2_CID_COUNT(bp) (MAX_TXQS_PER_COS * BNX2X_MULTI_TX_COS +\
1443 NON_ETH_CONTEXT_USE + CNIC_PRESENT)
1444#define L2_ILT_LINES(bp) (DIV_ROUND_UP(BNX2X_L2_CID_COUNT(bp),\
1445 ILT_PAGE_CIDS))
1403 dma_addr_t def_status_blk_mapping;
1404
1405 struct bnx2x_slowpath *slowpath;
1406 dma_addr_t slowpath_mapping;
1407
1408 /* Total number of FW statistics requests */
1409 u8 fw_stats_num;
1410

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1449/*
1450 * Maximum CID count that might be required by the bnx2x:
1451 * Max Tss * Max_Tx_Multi_Cos + CNIC L2 Clients (FCoE and iSCSI related)
1452 */
1453#define BNX2X_L2_CID_COUNT(bp) (MAX_TXQS_PER_COS * BNX2X_MULTI_TX_COS +\
1454 NON_ETH_CONTEXT_USE + CNIC_PRESENT)
1455#define L2_ILT_LINES(bp) (DIV_ROUND_UP(BNX2X_L2_CID_COUNT(bp),\
1456 ILT_PAGE_CIDS))
1446#define BNX2X_DB_SIZE(bp) (BNX2X_L2_CID_COUNT(bp) * (1 << BNX2X_DB_SHIFT))
1447
1448 int qm_cid_count;
1449
1450 int dropless_fc;
1451
1452#ifdef BCM_CNIC
1453 u32 cnic_flags;
1454#define BNX2X_CNIC_FLAG_MAC_SET 1

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1597 /* priority to cos mapping */
1598 u8 prio_to_cos[8];
1599};
1600
1601/* Tx queues may be less or equal to Rx queues */
1602extern int num_queues;
1603#define BNX2X_NUM_QUEUES(bp) (bp->num_queues)
1604#define BNX2X_NUM_ETH_QUEUES(bp) (BNX2X_NUM_QUEUES(bp) - NON_ETH_CONTEXT_USE)
1457
1458 int qm_cid_count;
1459
1460 int dropless_fc;
1461
1462#ifdef BCM_CNIC
1463 u32 cnic_flags;
1464#define BNX2X_CNIC_FLAG_MAC_SET 1

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1607 /* priority to cos mapping */
1608 u8 prio_to_cos[8];
1609};
1610
1611/* Tx queues may be less or equal to Rx queues */
1612extern int num_queues;
1613#define BNX2X_NUM_QUEUES(bp) (bp->num_queues)
1614#define BNX2X_NUM_ETH_QUEUES(bp) (BNX2X_NUM_QUEUES(bp) - NON_ETH_CONTEXT_USE)
1615#define BNX2X_NUM_NON_CNIC_QUEUES(bp) (BNX2X_NUM_QUEUES(bp) - \
1616 NON_ETH_CONTEXT_USE)
1605#define BNX2X_NUM_RX_QUEUES(bp) BNX2X_NUM_QUEUES(bp)
1606
1607#define is_multi(bp) (BNX2X_NUM_QUEUES(bp) > 1)
1608
1609#define BNX2X_MAX_QUEUES(bp) BNX2X_MAX_RSS_COUNT(bp)
1610/* #define is_eth_multi(bp) (BNX2X_NUM_ETH_QUEUES(bp) > 1) */
1611
1612#define RSS_IPV4_CAP_MASK \

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1618
1619#define is_multi(bp) (BNX2X_NUM_QUEUES(bp) > 1)
1620
1621#define BNX2X_MAX_QUEUES(bp) BNX2X_MAX_RSS_COUNT(bp)
1622/* #define is_eth_multi(bp) (BNX2X_NUM_ETH_QUEUES(bp) > 1) */
1623
1624#define RSS_IPV4_CAP_MASK \

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