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authorVladislav Zolotarov <vladz@broadcom.com>2011-02-06 11:21:02 -0800
committerDavid S. Miller <davem@davemloft.net>2011-02-06 11:21:02 -0800
commita8c94b9188bf6012d9b6c3d37f324bd6c7d2924e (patch)
tree3e099f4ab52247d52c842bc7f6a99c07ca09af40 /drivers/net/bnx2x/bnx2x.h
parent7eb38527c4e485923fa3f87d11ce11b4e6ebf807 (diff)
bnx2x: MTU for FCoE L2 ring
Always configure an FCoE L2 ring with a mini-jumbo MTU size (2500). To do that we had to move the rx_buf_size parameter from per function level to a per ring level. Signed-off-by: Vladislav Zolotarov <vladz@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/bnx2x/bnx2x.h')
-rw-r--r--drivers/net/bnx2x/bnx2x.h7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/net/bnx2x/bnx2x.h b/drivers/net/bnx2x/bnx2x.h
index ff87ec33d00e..c29b37e5e743 100644
--- a/drivers/net/bnx2x/bnx2x.h
+++ b/drivers/net/bnx2x/bnx2x.h
@@ -341,6 +341,8 @@ struct bnx2x_fastpath {
/* chip independed shortcut into rx_prods_offset memory */
u32 ustorm_rx_prods_offset;
+ u32 rx_buf_size;
+
dma_addr_t status_blk_mapping;
struct sw_tx_bd *tx_buf_ring;
@@ -428,6 +430,10 @@ struct bnx2x_fastpath {
};
#define bnx2x_fp(bp, nr, var) (bp->fp[nr].var)
+
+/* Use 2500 as a mini-jumbo MTU for FCoE */
+#define BNX2X_FCOE_MINI_JUMBO_MTU 2500
+
#ifdef BCM_CNIC
/* FCoE L2 `fastpath' is right after the eth entries */
#define FCOE_IDX BNX2X_NUM_ETH_QUEUES(bp)
@@ -911,7 +917,6 @@ struct bnx2x {
int tx_ring_size;
u32 rx_csum;
- u32 rx_buf_size;
/* L2 header size + 2*VLANs (8 bytes) + LLC SNAP (8 bytes) */
#define ETH_OVREHEAD (ETH_HLEN + 8 + 8)
#define ETH_MIN_PACKET_SIZE 60