netdev - [PATCH net-next 04/15] bnxt_en: Do not include ETH_FCS

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Date:   Mon,  4 May 2020 04:50:30 -0400
From:   Michael Chan <michael.chan@...adcom.com>
To:     davem@...emloft.net
Cc:     netdev@...r.kernel.org,
        Vasundhara Volam <vasundhara-v.volam@...adcom.com>
Subject: [PATCH net-next 04/15] bnxt_en: Do not include ETH_FCS_LEN in the max packet length sent to fw.

From: Vasundhara Volam <vasundhara-v.volam@...adcom.com>

The firmware does not expect the CRC to be included in the length
passed from the driver.  The firmware always configures the chip
to strip out the CRC.

Signed-off-by: Vasundhara Volam <vasundhara-v.volam@...adcom.com>
Signed-off-by: Michael Chan <michael.chan@...adcom.com>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.c       | 3 +--
 drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c | 2 +-
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 0cf41a1..5919f72 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -5045,8 +5045,7 @@ int bnxt_hwrm_vnic_cfg(struct bnxt *bp, u16 vnic_id)
 	req.dflt_ring_grp = cpu_to_le16(bp->grp_info[grp_idx].fw_grp_id);
 	req.lb_rule = cpu_to_le16(0xffff);
 vnic_mru:
-	req.mru = cpu_to_le16(bp->dev->mtu + ETH_HLEN + ETH_FCS_LEN +
-			      VLAN_HLEN);
+	req.mru = cpu_to_le16(bp->dev->mtu + ETH_HLEN + VLAN_HLEN);
 
 	req.vnic_id = cpu_to_le16(vnic->fw_vnic_id);
 #ifdef CONFIG_BNXT_SRIOV
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c
index 6ea3df6d..c883e88 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c
@@ -651,7 +651,7 @@ static int bnxt_hwrm_func_cfg(struct bnxt *bp, int num_vfs)
 				  FUNC_CFG_REQ_ENABLES_NUM_VNICS |
 				  FUNC_CFG_REQ_ENABLES_NUM_HW_RING_GRPS);
 
-	mtu = bp->dev->mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN;
+	mtu = bp->dev->mtu + ETH_HLEN + VLAN_HLEN;
 	req.mru = cpu_to_le16(mtu);
 	req.mtu = cpu_to_le16(mtu);
 
-- 
2.5.1