bnx2x: Allow more than 64 L2 CIDs

With increased number of RSS queues, each multiplied by the number of traffic-
classes, we may have up to 64*3=192 CIDs. The current driver scheme with regard
to context allocation supports only 64 CIDs. The new scheme enables scatter-
gatehr list of pages for the context.

Signed-off-by: Merav Sicron <meravs@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 7 insertions, 3 deletions

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
index 8ee4bfc1b0bb..c0c539fd2490 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
@@ -978,8 +978,8 @@ union cdu_context {
 };
 
 /* CDU host DB constants */
-#define CDU_ILT_PAGE_SZ_HW      3
-#define CDU_ILT_PAGE_SZ         (8192 << CDU_ILT_PAGE_SZ_HW) /* 64K */
+#define CDU_ILT_PAGE_SZ_HW      2
+#define CDU_ILT_PAGE_SZ         (8192 << CDU_ILT_PAGE_SZ_HW) /* 32K */
 #define ILT_PAGE_CIDS           (CDU_ILT_PAGE_SZ / sizeof(union cdu_context))
 
 #ifdef BCM_CNIC
@@ -1420,7 +1420,11 @@ struct bnx2x {
         dma_addr_t                      fw_stats_data_mapping;
         int                             fw_stats_data_sz;
 
-        struct hw_context       context;
+        /* For max 196 cids (64*3 + non-eth), 32KB ILT page size and 1KB
+         * context size we need 8 ILT entries.
+         */
+#define ILT_MAX_L2_LINES        8
+        struct hw_context       context[ILT_MAX_L2_LINES];
 
         struct bnx2x_ilt        *ilt;
 #define BP_ILT(bp)              ((bp)->ilt)