bnx2x: add FCoE ring

Includes new driver structures and FW/HW configuration for FCoE ring

Signed-off-by: Vladislav Zolotarov <vladz@broadcom.com>
Signed-off-by: Shmulik Ravid-Rabinovitz <shmulikr@broadcom.com>
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 108 insertions, 10 deletions

diff --git a/drivers/net/bnx2x/bnx2x.h b/drivers/net/bnx2x/bnx2x.h
index 7e4d682f0df1..475725c566d7 100644
--- a/drivers/net/bnx2x/bnx2x.h
+++ b/drivers/net/bnx2x/bnx2x.h
@@ -13,6 +13,8 @@
 
 #ifndef BNX2X_H
 #define BNX2X_H
+#include <linux/netdevice.h>
+#include <linux/types.h>
 
 /* compilation time flags */
 
@@ -199,10 +201,25 @@ void bnx2x_panic_dump(struct bnx2x *bp);
 /* EQ completions */
 #define HC_SP_INDEX_EQ_CONS                     7
 
+/* FCoE L2 connection completions */
+#define HC_SP_INDEX_ETH_FCOE_TX_CQ_CONS         6
+#define HC_SP_INDEX_ETH_FCOE_RX_CQ_CONS         4
 /* iSCSI L2 */
 #define HC_SP_INDEX_ETH_ISCSI_CQ_CONS           5
 #define HC_SP_INDEX_ETH_ISCSI_RX_CQ_CONS        1
 
+/* Special clients parameters */
+
+/* SB indices */
+/* FCoE L2 */
+#define BNX2X_FCOE_L2_RX_INDEX \
+        (&bp->def_status_blk->sp_sb.\
+        index_values[HC_SP_INDEX_ETH_FCOE_RX_CQ_CONS])
+
+#define BNX2X_FCOE_L2_TX_INDEX \
+        (&bp->def_status_blk->sp_sb.\
+        index_values[HC_SP_INDEX_ETH_FCOE_TX_CQ_CONS])
+
 /**
  *  CIDs and CLIDs:
  *  CLIDs below is a CLID for func 0, then the CLID for other
@@ -215,12 +232,19 @@ void bnx2x_panic_dump(struct bnx2x *bp);
 #define BNX2X_ISCSI_ETH_CL_ID           17
 #define BNX2X_ISCSI_ETH_CID             17
 
+/* FCoE L2 */
+#define BNX2X_FCOE_ETH_CL_ID            18
+#define BNX2X_FCOE_ETH_CID              18
+
 /** Additional rings budgeting */
 #ifdef BCM_CNIC
 #define CNIC_CONTEXT_USE                1
+#define FCOE_CONTEXT_USE                1
 #else
 #define CNIC_CONTEXT_USE                0
+#define FCOE_CONTEXT_USE                0
 #endif /* BCM_CNIC */
+#define NONE_ETH_CONTEXT_USE    (FCOE_CONTEXT_USE)
 
 #define AEU_IN_ATTN_BITS_PXPPCICLOCKCLIENT_PARITY_ERROR \
         AEU_INPUTS_ATTN_BITS_PXPPCICLOCKCLIENT_PARITY_ERROR
@@ -401,6 +425,17 @@ struct bnx2x_fastpath {
 };
 
 #define bnx2x_fp(bp, nr, var)           (bp->fp[nr].var)
+#ifdef BCM_CNIC
+/* FCoE L2 `fastpath' is right after the eth entries */
+#define FCOE_IDX                        BNX2X_NUM_ETH_QUEUES(bp)
+#define bnx2x_fcoe_fp(bp)               (&bp->fp[FCOE_IDX])
+#define bnx2x_fcoe(bp, var)             (bnx2x_fcoe_fp(bp)->var)
+#define IS_FCOE_FP(fp)                  (fp->index == FCOE_IDX)
+#define IS_FCOE_IDX(idx)                ((idx) == FCOE_IDX)
+#else
+#define IS_FCOE_FP(fp)          false
+#define IS_FCOE_IDX(idx)        false
+#endif
 
 
 /* MC hsi */
@@ -669,7 +704,9 @@ struct bnx2x_port {
 enum {
         CAM_ETH_LINE = 0,
         CAM_ISCSI_ETH_LINE,
-        CAM_MAX_PF_LINE = CAM_ISCSI_ETH_LINE
+        CAM_FIP_ETH_LINE,
+        CAM_FIP_MCAST_LINE,
+        CAM_MAX_PF_LINE = CAM_FIP_MCAST_LINE
 };
 /* number of MACs per function in NIG memory - used for SI mode */
 #define NIG_LLH_FUNC_MEM_SIZE           16
@@ -714,6 +751,14 @@ enum {
  */
 #define L2_FP_COUNT(cid_cnt)    ((cid_cnt) - CNIC_CONTEXT_USE)
 
+/*
+ * The number of FP-SB allocated by the driver == max number of regular L2
+ * queues + 1 for the CNIC which also consumes an FP-SB
+ */
+#define FP_SB_COUNT(cid_cnt)    ((cid_cnt) - FCOE_CONTEXT_USE)
+#define NUM_IGU_SB_REQUIRED(cid_cnt) \
+                                (FP_SB_COUNT(cid_cnt) - NONE_ETH_CONTEXT_USE)
+
 union cdu_context {
         struct eth_context eth;
         char pad[1024];
@@ -726,7 +771,8 @@ union cdu_context {
 
 #ifdef BCM_CNIC
 #define CNIC_ISCSI_CID_MAX      256
-#define CNIC_CID_MAX            (CNIC_ISCSI_CID_MAX)
+#define CNIC_FCOE_CID_MAX       2048
+#define CNIC_CID_MAX            (CNIC_ISCSI_CID_MAX + CNIC_FCOE_CID_MAX)
 #define CNIC_ILT_LINES          DIV_ROUND_UP(CNIC_CID_MAX, ILT_PAGE_CIDS)
 #endif
 
@@ -922,6 +968,10 @@ struct bnx2x {
 #define DISABLE_MSI_FLAG                0x200
 #define BP_NOMCP(bp)                    (bp->flags & NO_MCP_FLAG)
 #define MF_FUNC_DIS                     0x1000
+#define FCOE_MACS_SET                   0x2000
+#define NO_FCOE_FLAG                    0x4000
+
+#define NO_FCOE(bp)             ((bp)->flags & NO_FCOE_FLAG)
 
         int                     pf_num; /* absolute PF number */
         int                     pfid;   /* per-path PF number */
@@ -1069,7 +1119,8 @@ struct bnx2x {
         u16                     cnic_kwq_pending;
         u16                     cnic_spq_pending;
         struct mutex            cnic_mutex;
-        u8                      iscsi_mac[6];
+        u8                      iscsi_mac[ETH_ALEN];
+        u8                      fip_mac[ETH_ALEN];
 #endif
 
         int                     dmae_ready;
@@ -1159,10 +1210,17 @@ struct bnx2x {
 #define RSS_IPV6_TCP_CAP        0x0008
 
 #define BNX2X_NUM_QUEUES(bp)    (bp->num_queues)
+#define BNX2X_NUM_ETH_QUEUES(bp) (BNX2X_NUM_QUEUES(bp) - NONE_ETH_CONTEXT_USE)
+
+/* ethtool statistics are displayed for all regular ethernet queues and the
+ * fcoe L2 queue if not disabled
+ */
+#define BNX2X_NUM_STAT_QUEUES(bp) (NO_FCOE(bp) ? BNX2X_NUM_ETH_QUEUES(bp) : \
+                           (BNX2X_NUM_ETH_QUEUES(bp) + FCOE_CONTEXT_USE))
+
 #define is_multi(bp)            (BNX2X_NUM_QUEUES(bp) > 1)
 
 #define BNX2X_MAX_QUEUES(bp)    (bp->igu_sb_cnt - CNIC_CONTEXT_USE)
-#define is_eth_multi(bp)        (BNX2X_NUM_ETH_QUEUES(bp) > 1)
 
 #define RSS_IPV4_CAP_MASK                                               \
         TSTORM_ETH_FUNCTION_COMMON_CONFIG_RSS_IPV4_CAPABILITY
@@ -1255,6 +1313,7 @@ struct bnx2x_client_ramrod_params {
         u16 cl_id;
         u32 cid;
         u8 poll;
+#define CLIENT_IS_FCOE                  0x01
 #define CLIENT_IS_LEADING_RSS           0x02
         u8 flags;
 };
@@ -1287,11 +1346,54 @@ struct bnx2x_func_init_params {
         u16             spq_prod;       /* valid iff FUNC_FLG_SPQ */
 };
 
+#define for_each_eth_queue(bp, var) \
+                        for (var = 0; var < BNX2X_NUM_ETH_QUEUES(bp); var++)
+
+#define for_each_nondefault_eth_queue(bp, var) \
+                        for (var = 1; var < BNX2X_NUM_ETH_QUEUES(bp); var++)
+
+#define for_each_napi_queue(bp, var) \
+        for (var = 0; \
+                var < BNX2X_NUM_ETH_QUEUES(bp) + FCOE_CONTEXT_USE; var++) \
+                if (skip_queue(bp, var))        \
+                        continue;               \
+                else
+
 #define for_each_queue(bp, var) \
-                        for (var = 0; var < BNX2X_NUM_QUEUES(bp); var++)
+        for (var = 0; var < BNX2X_NUM_QUEUES(bp); var++) \
+                if (skip_queue(bp, var))        \
+                        continue;               \
+                else
+
+#define for_each_rx_queue(bp, var) \
+        for (var = 0; var < BNX2X_NUM_QUEUES(bp); var++) \
+                if (skip_rx_queue(bp, var))     \
+                        continue;               \
+                else
+
+#define for_each_tx_queue(bp, var) \
+        for (var = 0; var < BNX2X_NUM_QUEUES(bp); var++) \
+                if (skip_tx_queue(bp, var))     \
+                        continue;               \
+                else
+
 #define for_each_nondefault_queue(bp, var) \
-                        for (var = 1; var < BNX2X_NUM_QUEUES(bp); var++)
+        for (var = 1; var < BNX2X_NUM_QUEUES(bp); var++) \
+                if (skip_queue(bp, var))        \
+                        continue;               \
+                else
 
+/* skip rx queue
+ * if FCOE l2 support is diabled and this is the fcoe L2 queue
+ */
+#define skip_rx_queue(bp, idx)  (NO_FCOE(bp) && IS_FCOE_IDX(idx))
+
+/* skip tx queue
+ * if FCOE l2 support is diabled and this is the fcoe L2 queue
+ */
+#define skip_tx_queue(bp, idx)  (NO_FCOE(bp) && IS_FCOE_IDX(idx))
+
+#define skip_queue(bp, idx)     (NO_FCOE(bp) && IS_FCOE_IDX(idx))
 
 #define WAIT_RAMROD_POLL        0x01
 #define WAIT_RAMROD_COMMON      0x02
@@ -1615,10 +1717,6 @@ static inline u32 reg_poll(struct bnx2x *bp, u32 reg, u32 expected, int ms,
         MAC_CONFIGURATION_ENTRY_ACTION_TYPE) == \
         (T_ETH_MAC_COMMAND_INVALIDATE))
 
-#define CAM_INVALIDATE(x) \
-        (x.target_table_entry.flags = TSTORM_CAM_TARGET_TABLE_ENTRY_ACTION_TYPE)
-
-
 /* Number of u32 elements in MC hash array */
 #define MC_HASH_SIZE                    8
 #define MC_HASH_OFFSET(bp, i)           (BAR_TSTRORM_INTMEM + \