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path: root/drivers/net/bnx2x/bnx2x.h
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Diffstat (limited to 'drivers/net/bnx2x/bnx2x.h')
-rw-r--r--drivers/net/bnx2x/bnx2x.h142
1 files changed, 104 insertions, 38 deletions
diff --git a/drivers/net/bnx2x/bnx2x.h b/drivers/net/bnx2x/bnx2x.h
index c423504..9a7eb3b 100644
--- a/drivers/net/bnx2x/bnx2x.h
+++ b/drivers/net/bnx2x/bnx2x.h
@@ -239,13 +239,19 @@ void bnx2x_int_disable(struct bnx2x *bp);
* FUNC_N_CLID_X = N * NUM_SPECIAL_CLIENTS + FUNC_0_CLID_X
*
*/
-/* iSCSI L2 */
-#define BNX2X_ISCSI_ETH_CL_ID_IDX 1
-#define BNX2X_ISCSI_ETH_CID 49
+enum {
+ BNX2X_ISCSI_ETH_CL_ID_IDX,
+ BNX2X_FCOE_ETH_CL_ID_IDX,
+ BNX2X_MAX_CNIC_ETH_CL_ID_IDX,
+};
-/* FCoE L2 */
-#define BNX2X_FCOE_ETH_CL_ID_IDX 2
-#define BNX2X_FCOE_ETH_CID 50
+#define BNX2X_CNIC_START_ETH_CID 48
+enum {
+ /* iSCSI L2 */
+ BNX2X_ISCSI_ETH_CID = BNX2X_CNIC_START_ETH_CID,
+ /* FCoE L2 */
+ BNX2X_FCOE_ETH_CID,
+};
/** Additional rings budgeting */
#ifdef BCM_CNIC
@@ -315,6 +321,14 @@ union db_prod {
u32 raw;
};
+/* dropless fc FW/HW related params */
+#define BRB_SIZE(bp) (CHIP_IS_E3(bp) ? 1024 : 512)
+#define MAX_AGG_QS(bp) (CHIP_IS_E1(bp) ? \
+ ETH_MAX_AGGREGATION_QUEUES_E1 :\
+ ETH_MAX_AGGREGATION_QUEUES_E1H_E2)
+#define FW_DROP_LEVEL(bp) (3 + MAX_SPQ_PENDING + MAX_AGG_QS(bp))
+#define FW_PREFETCH_CNT 16
+#define DROPLESS_FC_HEADROOM 100
/* MC hsi */
#define BCM_PAGE_SHIFT 12
@@ -331,15 +345,35 @@ union db_prod {
/* SGE ring related macros */
#define NUM_RX_SGE_PAGES 2
#define RX_SGE_CNT (BCM_PAGE_SIZE / sizeof(struct eth_rx_sge))
-#define MAX_RX_SGE_CNT (RX_SGE_CNT - 2)
+#define NEXT_PAGE_SGE_DESC_CNT 2
+#define MAX_RX_SGE_CNT (RX_SGE_CNT - NEXT_PAGE_SGE_DESC_CNT)
/* RX_SGE_CNT is promised to be a power of 2 */
#define RX_SGE_MASK (RX_SGE_CNT - 1)
#define NUM_RX_SGE (RX_SGE_CNT * NUM_RX_SGE_PAGES)
#define MAX_RX_SGE (NUM_RX_SGE - 1)
#define NEXT_SGE_IDX(x) ((((x) & RX_SGE_MASK) == \
- (MAX_RX_SGE_CNT - 1)) ? (x) + 3 : (x) + 1)
+ (MAX_RX_SGE_CNT - 1)) ? \
+ (x) + 1 + NEXT_PAGE_SGE_DESC_CNT : \
+ (x) + 1)
#define RX_SGE(x) ((x) & MAX_RX_SGE)
+/*
+ * Number of required SGEs is the sum of two:
+ * 1. Number of possible opened aggregations (next packet for
+ * these aggregations will probably consume SGE immidiatelly)
+ * 2. Rest of BRB blocks divided by 2 (block will consume new SGE only
+ * after placement on BD for new TPA aggregation)
+ *
+ * Takes into account NEXT_PAGE_SGE_DESC_CNT "next" elements on each page
+ */
+#define NUM_SGE_REQ (MAX_AGG_QS(bp) + \
+ (BRB_SIZE(bp) - MAX_AGG_QS(bp)) / 2)
+#define NUM_SGE_PG_REQ ((NUM_SGE_REQ + MAX_RX_SGE_CNT - 1) / \
+ MAX_RX_SGE_CNT)
+#define SGE_TH_LO(bp) (NUM_SGE_REQ + \
+ NUM_SGE_PG_REQ * NEXT_PAGE_SGE_DESC_CNT)
+#define SGE_TH_HI(bp) (SGE_TH_LO(bp) + DROPLESS_FC_HEADROOM)
+
/* Manipulate a bit vector defined as an array of u64 */
/* Number of bits in one sge_mask array element */
@@ -551,24 +585,43 @@ struct bnx2x_fastpath {
#define NUM_TX_RINGS 16
#define TX_DESC_CNT (BCM_PAGE_SIZE / sizeof(union eth_tx_bd_types))
-#define MAX_TX_DESC_CNT (TX_DESC_CNT - 1)
+#define NEXT_PAGE_TX_DESC_CNT 1
+#define MAX_TX_DESC_CNT (TX_DESC_CNT - NEXT_PAGE_TX_DESC_CNT)
#define NUM_TX_BD (TX_DESC_CNT * NUM_TX_RINGS)
#define MAX_TX_BD (NUM_TX_BD - 1)
#define MAX_TX_AVAIL (MAX_TX_DESC_CNT * NUM_TX_RINGS - 2)
#define NEXT_TX_IDX(x) ((((x) & MAX_TX_DESC_CNT) == \
- (MAX_TX_DESC_CNT - 1)) ? (x) + 2 : (x) + 1)
+ (MAX_TX_DESC_CNT - 1)) ? \
+ (x) + 1 + NEXT_PAGE_TX_DESC_CNT : \
+ (x) + 1)
#define TX_BD(x) ((x) & MAX_TX_BD)
#define TX_BD_POFF(x) ((x) & MAX_TX_DESC_CNT)
/* The RX BD ring is special, each bd is 8 bytes but the last one is 16 */
#define NUM_RX_RINGS 8
#define RX_DESC_CNT (BCM_PAGE_SIZE / sizeof(struct eth_rx_bd))
-#define MAX_RX_DESC_CNT (RX_DESC_CNT - 2)
+#define NEXT_PAGE_RX_DESC_CNT 2
+#define MAX_RX_DESC_CNT (RX_DESC_CNT - NEXT_PAGE_RX_DESC_CNT)
#define RX_DESC_MASK (RX_DESC_CNT - 1)
#define NUM_RX_BD (RX_DESC_CNT * NUM_RX_RINGS)
#define MAX_RX_BD (NUM_RX_BD - 1)
#define MAX_RX_AVAIL (MAX_RX_DESC_CNT * NUM_RX_RINGS - 2)
-#define MIN_RX_AVAIL 128
+
+/* dropless fc calculations for BDs
+ *
+ * Number of BDs should as number of buffers in BRB:
+ * Low threshold takes into account NEXT_PAGE_RX_DESC_CNT
+ * "next" elements on each page
+ */
+#define NUM_BD_REQ BRB_SIZE(bp)
+#define NUM_BD_PG_REQ ((NUM_BD_REQ + MAX_RX_DESC_CNT - 1) / \
+ MAX_RX_DESC_CNT)
+#define BD_TH_LO(bp) (NUM_BD_REQ + \
+ NUM_BD_PG_REQ * NEXT_PAGE_RX_DESC_CNT + \
+ FW_DROP_LEVEL(bp))
+#define BD_TH_HI(bp) (BD_TH_LO(bp) + DROPLESS_FC_HEADROOM)
+
+#define MIN_RX_AVAIL ((bp)->dropless_fc ? BD_TH_HI(bp) + 128 : 128)
#define MIN_RX_SIZE_TPA_HW (CHIP_IS_E1(bp) ? \
ETH_MIN_RX_CQES_WITH_TPA_E1 : \
@@ -579,7 +632,9 @@ struct bnx2x_fastpath {
MIN_RX_AVAIL))
#define NEXT_RX_IDX(x) ((((x) & RX_DESC_MASK) == \
- (MAX_RX_DESC_CNT - 1)) ? (x) + 3 : (x) + 1)
+ (MAX_RX_DESC_CNT - 1)) ? \
+ (x) + 1 + NEXT_PAGE_RX_DESC_CNT : \
+ (x) + 1)
#define RX_BD(x) ((x) & MAX_RX_BD)
/*
@@ -589,14 +644,31 @@ struct bnx2x_fastpath {
#define CQE_BD_REL (sizeof(union eth_rx_cqe) / sizeof(struct eth_rx_bd))
#define NUM_RCQ_RINGS (NUM_RX_RINGS * CQE_BD_REL)
#define RCQ_DESC_CNT (BCM_PAGE_SIZE / sizeof(union eth_rx_cqe))
-#define MAX_RCQ_DESC_CNT (RCQ_DESC_CNT - 1)
+#define NEXT_PAGE_RCQ_DESC_CNT 1
+#define MAX_RCQ_DESC_CNT (RCQ_DESC_CNT - NEXT_PAGE_RCQ_DESC_CNT)
#define NUM_RCQ_BD (RCQ_DESC_CNT * NUM_RCQ_RINGS)
#define MAX_RCQ_BD (NUM_RCQ_BD - 1)
#define MAX_RCQ_AVAIL (MAX_RCQ_DESC_CNT * NUM_RCQ_RINGS - 2)
#define NEXT_RCQ_IDX(x) ((((x) & MAX_RCQ_DESC_CNT) == \
- (MAX_RCQ_DESC_CNT - 1)) ? (x) + 2 : (x) + 1)
+ (MAX_RCQ_DESC_CNT - 1)) ? \
+ (x) + 1 + NEXT_PAGE_RCQ_DESC_CNT : \
+ (x) + 1)
#define RCQ_BD(x) ((x) & MAX_RCQ_BD)
+/* dropless fc calculations for RCQs
+ *
+ * Number of RCQs should be as number of buffers in BRB:
+ * Low threshold takes into account NEXT_PAGE_RCQ_DESC_CNT
+ * "next" elements on each page
+ */
+#define NUM_RCQ_REQ BRB_SIZE(bp)
+#define NUM_RCQ_PG_REQ ((NUM_BD_REQ + MAX_RCQ_DESC_CNT - 1) / \
+ MAX_RCQ_DESC_CNT)
+#define RCQ_TH_LO(bp) (NUM_RCQ_REQ + \
+ NUM_RCQ_PG_REQ * NEXT_PAGE_RCQ_DESC_CNT + \
+ FW_DROP_LEVEL(bp))
+#define RCQ_TH_HI(bp) (RCQ_TH_LO(bp) + DROPLESS_FC_HEADROOM)
+
/* This is needed for determining of last_max */
#define SUB_S16(a, b) (s16)((s16)(a) - (s16)(b))
@@ -685,24 +757,17 @@ struct bnx2x_fastpath {
#define FP_CSB_FUNC_OFF \
offsetof(struct cstorm_status_block_c, func)
-#define HC_INDEX_TOE_RX_CQ_CONS 0 /* Formerly Ustorm TOE CQ index */
- /* (HC_INDEX_U_TOE_RX_CQ_CONS) */
-#define HC_INDEX_ETH_RX_CQ_CONS 1 /* Formerly Ustorm ETH CQ index */
- /* (HC_INDEX_U_ETH_RX_CQ_CONS) */
-#define HC_INDEX_ETH_RX_BD_CONS 2 /* Formerly Ustorm ETH BD index */
- /* (HC_INDEX_U_ETH_RX_BD_CONS) */
-
-#define HC_INDEX_TOE_TX_CQ_CONS 4 /* Formerly Cstorm TOE CQ index */
- /* (HC_INDEX_C_TOE_TX_CQ_CONS) */
-#define HC_INDEX_ETH_TX_CQ_CONS_COS0 5 /* Formerly Cstorm ETH CQ index */
- /* (HC_INDEX_C_ETH_TX_CQ_CONS) */
-#define HC_INDEX_ETH_TX_CQ_CONS_COS1 6 /* Formerly Cstorm ETH CQ index */
- /* (HC_INDEX_C_ETH_TX_CQ_CONS) */
-#define HC_INDEX_ETH_TX_CQ_CONS_COS2 7 /* Formerly Cstorm ETH CQ index */
- /* (HC_INDEX_C_ETH_TX_CQ_CONS) */
+#define HC_INDEX_ETH_RX_CQ_CONS 1
-#define HC_INDEX_ETH_FIRST_TX_CQ_CONS HC_INDEX_ETH_TX_CQ_CONS_COS0
+#define HC_INDEX_OOO_TX_CQ_CONS 4
+
+#define HC_INDEX_ETH_TX_CQ_CONS_COS0 5
+
+#define HC_INDEX_ETH_TX_CQ_CONS_COS1 6
+#define HC_INDEX_ETH_TX_CQ_CONS_COS2 7
+
+#define HC_INDEX_ETH_FIRST_TX_CQ_CONS HC_INDEX_ETH_TX_CQ_CONS_COS0
#define BNX2X_RX_SB_INDEX \
(&fp->sb_index_values[HC_INDEX_ETH_RX_CQ_CONS])
@@ -1100,11 +1165,12 @@ struct bnx2x {
#define BP_PORT(bp) (bp->pfid & 1)
#define BP_FUNC(bp) (bp->pfid)
#define BP_ABS_FUNC(bp) (bp->pf_num)
-#define BP_E1HVN(bp) (bp->pfid >> 1)
-#define BP_VN(bp) (BP_E1HVN(bp)) /*remove when approved*/
-#define BP_L_ID(bp) (BP_E1HVN(bp) << 2)
-#define BP_FW_MB_IDX(bp) (BP_PORT(bp) +\
- BP_VN(bp) * ((CHIP_IS_E1x(bp) || (CHIP_MODE_IS_4_PORT(bp))) ? 2 : 1))
+#define BP_VN(bp) ((bp)->pfid >> 1)
+#define BP_MAX_VN_NUM(bp) (CHIP_MODE_IS_4_PORT(bp) ? 2 : 4)
+#define BP_L_ID(bp) (BP_VN(bp) << 2)
+#define BP_FW_MB_IDX_VN(bp, vn) (BP_PORT(bp) +\
+ (vn) * ((CHIP_IS_E1x(bp) || (CHIP_MODE_IS_4_PORT(bp))) ? 2 : 1))
+#define BP_FW_MB_IDX(bp) BP_FW_MB_IDX_VN(bp, BP_VN(bp))
struct net_device *dev;
struct pci_dev *pdev;
@@ -1767,7 +1833,7 @@ static inline u32 reg_poll(struct bnx2x *bp, u32 reg, u32 expected, int ms,
#define MAX_DMAE_C_PER_PORT 8
#define INIT_DMAE_C(bp) (BP_PORT(bp) * MAX_DMAE_C_PER_PORT + \
- BP_E1HVN(bp))
+ BP_VN(bp))
#define PMF_DMAE_C(bp) (BP_PORT(bp) * MAX_DMAE_C_PER_PORT + \
E1HVN_MAX)
@@ -1793,7 +1859,7 @@ static inline u32 reg_poll(struct bnx2x *bp, u32 reg, u32 expected, int ms,
/* must be used on a CID before placing it on a HW ring */
#define HW_CID(bp, x) ((BP_PORT(bp) << 23) | \
- (BP_E1HVN(bp) << BNX2X_SWCID_SHIFT) | \
+ (BP_VN(bp) << BNX2X_SWCID_SHIFT) | \
(x))
#define SP_DESC_CNT (BCM_PAGE_SIZE / sizeof(struct eth_spe))

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