[BNX2]: Support multiple MSIX IRQs.

Change bnx2_napi struct into an array and add code to manage multiple
IRQs.  MSIX hardware structures and new registers are also added.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 38 insertions, 2 deletions

diff --git a/drivers/net/bnx2.h b/drivers/net/bnx2.h
index b75795b4f8cf..d71ceb6c176f 100644
--- a/drivers/net/bnx2.h
+++ b/drivers/net/bnx2.h
@@ -154,6 +154,33 @@ struct status_block {
 #endif
 };
 
+/*
+ *  status_block definition
+ */
+struct status_block_msix {
+#if defined(__BIG_ENDIAN)
+        u16 status_tx_quick_consumer_index;
+        u16 status_rx_quick_consumer_index;
+        u16 status_completion_producer_index;
+        u16 status_cmd_consumer_index;
+        u32 status_unused;
+        u16 status_idx;
+        u8 status_unused2;
+        u8 status_blk_num;
+#elif defined(__LITTLE_ENDIAN)
+        u16 status_rx_quick_consumer_index;
+        u16 status_tx_quick_consumer_index;
+        u16 status_cmd_consumer_index;
+        u16 status_completion_producer_index;
+        u32 status_unused;
+        u8 status_blk_num;
+        u8 status_unused2;
+        u16 status_idx;
+#endif
+};
+
+#define BNX2_SBLK_MSIX_ALIGN_SIZE       128
+
 
 /*
  *  statistics_block definition
@@ -413,6 +440,7 @@ struct l2_fhdr {
 #define BNX2_PCICFG_INT_ACK_CMD_USE_INT_HC_PARAM         (1L<<17)
 #define BNX2_PCICFG_INT_ACK_CMD_MASK_INT                 (1L<<18)
 #define BNX2_PCICFG_INT_ACK_CMD_INTERRUPT_NUM            (0xfL<<24)
+#define BNX2_PCICFG_INT_ACK_CMD_INT_NUM_SHIFT            24
 
 #define BNX2_PCICFG_STATUS_BIT_SET_CMD                  0x00000088
 #define BNX2_PCICFG_STATUS_BIT_CLEAR_CMD                0x0000008c
@@ -428,6 +456,9 @@ struct l2_fhdr {
 #define BNX2_PCI_GRC_WINDOW_ADDR_VALUE                   (0x1ffL<<13)
 #define BNX2_PCI_GRC_WINDOW_ADDR_SEP_WIN                 (1L<<31)
 
+#define BNX2_PCI_GRC_WINDOW2_BASE                        0xc000
+#define BNX2_PCI_GRC_WINDOW3_BASE                        0xe000
+
 #define BNX2_PCI_CONFIG_1                               0x00000404
 #define BNX2_PCI_CONFIG_1_RESERVED0                      (0xffL<<0)
 #define BNX2_PCI_CONFIG_1_READ_BOUNDARY                  (0x7L<<8)
@@ -700,6 +731,8 @@ struct l2_fhdr {
 #define BNX2_PCI_GRC_WINDOW3_ADDR                       0x00000618
 #define BNX2_PCI_GRC_WINDOW3_ADDR_VALUE                  (0x1ffL<<13)
 
+#define BNX2_MSIX_TABLE_ADDR                             0x318000
+#define BNX2_MSIX_PBA_ADDR                               0x31c000
 
 /*
  *  misc_reg definition
@@ -6500,6 +6533,7 @@ struct flash_spec {
 struct bnx2_irq {
         irq_handler_t   handler;
         u16             vector;
+        u8              requested;
         char            name[16];
 };
 
@@ -6535,13 +6569,15 @@ struct bnx2 {
         u32                     flags;
 #define PCIX_FLAG                       0x00000001
 #define PCI_32BIT_FLAG                  0x00000002
-#define ONE_TDMA_FLAG                   0x00000004      /* no longer used */
+#define MSIX_CAP_FLAG                   0x00000004
 #define NO_WOL_FLAG                     0x00000008
 #define USING_MSI_FLAG                  0x00000020
 #define ASF_ENABLE_FLAG                 0x00000040
 #define MSI_CAP_FLAG                    0x00000080
 #define ONE_SHOT_MSI_FLAG               0x00000100
 #define PCIE_FLAG                       0x00000200
+#define USING_MSIX_FLAG                 0x00000400
+#define USING_MSI_OR_MSIX_FLAG          (USING_MSI_FLAG | USING_MSIX_FLAG)
 
         /* Put tx producer and consumer fields in separate cache lines. */
 
@@ -6550,7 +6586,7 @@ struct bnx2 {
         u32             tx_bidx_addr;
         u32             tx_bseq_addr;
 
-        struct bnx2_napi        bnx2_napi;
+        struct bnx2_napi        bnx2_napi[BNX2_MAX_MSIX_VEC];
 
 #ifdef BCM_VLAN
         struct                  vlan_group *vlgrp;