diff options
| -rw-r--r-- | drivers/net/bnx2.c | 12 | ||||
| -rw-r--r-- | drivers/net/bnx2.h | 21 |
2 files changed, 31 insertions, 2 deletions
diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c index d28cbce0ec4..a52ffdc3b40 100644 --- a/drivers/net/bnx2.c +++ b/drivers/net/bnx2.c @@ -4473,7 +4473,7 @@ bnx2_reset_chip(struct bnx2 *bp, u32 reset_code) static int bnx2_init_chip(struct bnx2 *bp) { - u32 val; + u32 val, mtu; int rc, i; /* Make sure the interrupt is not active. */ @@ -4565,11 +4565,19 @@ bnx2_init_chip(struct bnx2 *bp) REG_WR(bp, BNX2_EMAC_BACKOFF_SEED, val); /* Program the MTU. Also include 4 bytes for CRC32. */ - val = bp->dev->mtu + ETH_HLEN + 4; + mtu = bp->dev->mtu; + val = mtu + ETH_HLEN + ETH_FCS_LEN; if (val > (MAX_ETHERNET_PACKET_SIZE + 4)) val |= BNX2_EMAC_RX_MTU_SIZE_JUMBO_ENA; REG_WR(bp, BNX2_EMAC_RX_MTU_SIZE, val); + if (mtu < 1500) + mtu = 1500; + + bnx2_reg_wr_ind(bp, BNX2_RBUF_CONFIG, BNX2_RBUF_CONFIG_VAL(mtu)); + bnx2_reg_wr_ind(bp, BNX2_RBUF_CONFIG2, BNX2_RBUF_CONFIG2_VAL(mtu)); + bnx2_reg_wr_ind(bp, BNX2_RBUF_CONFIG3, BNX2_RBUF_CONFIG3_VAL(mtu)); + for (i = 0; i < BNX2_MAX_MSIX_VEC; i++) bp->bnx2_napi[i].last_status_idx = 0; diff --git a/drivers/net/bnx2.h b/drivers/net/bnx2.h index 617d9534016..2b9649ae630 100644 --- a/drivers/net/bnx2.h +++ b/drivers/net/bnx2.h @@ -4199,7 +4199,14 @@ struct l2_fhdr { #define BNX2_RBUF_CONFIG 0x0020000c #define BNX2_RBUF_CONFIG_XOFF_TRIP (0x3ffL<<0) +#define BNX2_RBUF_CONFIG_XOFF_TRIP_VAL(mtu) \ + ((((mtu) - 1500) * 31 / 1000) + 54) #define BNX2_RBUF_CONFIG_XON_TRIP (0x3ffL<<16) +#define BNX2_RBUF_CONFIG_XON_TRIP_VAL(mtu) \ + ((((mtu) - 1500) * 39 / 1000) + 66) +#define BNX2_RBUF_CONFIG_VAL(mtu) \ + (BNX2_RBUF_CONFIG_XOFF_TRIP_VAL(mtu) | \ + (BNX2_RBUF_CONFIG_XON_TRIP_VAL(mtu) << 16)) #define BNX2_RBUF_FW_BUF_ALLOC 0x00200010 #define BNX2_RBUF_FW_BUF_ALLOC_VALUE (0x1ffL<<7) @@ -4221,11 +4228,25 @@ struct l2_fhdr { #define BNX2_RBUF_CONFIG2 0x0020001c #define BNX2_RBUF_CONFIG2_MAC_DROP_TRIP (0x3ffL<<0) +#define BNX2_RBUF_CONFIG2_MAC_DROP_TRIP_VAL(mtu) \ + ((((mtu) - 1500) * 4 / 1000) + 5) #define BNX2_RBUF_CONFIG2_MAC_KEEP_TRIP (0x3ffL<<16) +#define BNX2_RBUF_CONFIG2_MAC_KEEP_TRIP_VAL(mtu) \ + ((((mtu) - 1500) * 2 / 100) + 30) +#define BNX2_RBUF_CONFIG2_VAL(mtu) \ + (BNX2_RBUF_CONFIG2_MAC_DROP_TRIP_VAL(mtu) | \ + (BNX2_RBUF_CONFIG2_MAC_KEEP_TRIP_VAL(mtu) << 16)) #define BNX2_RBUF_CONFIG3 0x00200020 #define BNX2_RBUF_CONFIG3_CU_DROP_TRIP (0x3ffL<<0) +#define BNX2_RBUF_CONFIG3_CU_DROP_TRIP_VAL(mtu) \ + ((((mtu) - 1500) * 12 / 1000) + 18) #define BNX2_RBUF_CONFIG3_CU_KEEP_TRIP (0x3ffL<<16) +#define BNX2_RBUF_CONFIG3_CU_KEEP_TRIP_VAL(mtu) \ + ((((mtu) - 1500) * 2 / 100) + 30) +#define BNX2_RBUF_CONFIG3_VAL(mtu) \ + (BNX2_RBUF_CONFIG3_CU_DROP_TRIP_VAL(mtu) | \ + (BNX2_RBUF_CONFIG3_CU_KEEP_TRIP_VAL(mtu) << 16)) #define BNX2_RBUF_PKT_DATA 0x00208000 #define BNX2_RBUF_CLIST_DATA 0x00210000 |