AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-12-16 06:57:04 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

qede: Fix internal loopback failure with jumbo mtu configuration

Browse Source 
Driver uses port-mtu as packet-size for the loopback traffic. This patch
limits the max packet size to 1.5K to avoid data being split over multiple
buffer descriptors (BDs) in cases where MTU > PAGE_SIZE.

Signed-off-by: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sudarsana Reddy Kalluru 2019-03-07 07:56:35 -08:00 committed by David S. Miller
parent 43d281662f
commit b89869da2d
1 changed files with 5 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/net/ethernet/qlogic/qede/qede_ethtool.c
View File

@ -1663,8 +1663,11 @@ static int qede_selftest_run_loopback(struct qede_dev *edev, u32 loopback_mode)
/* Wait for loopback configuration to apply */
msleep_interruptible(500);
/* prepare the loopback packet */
pkt_size = edev->ndev->mtu + ETH_HLEN;
/* Setting max packet size to 1.5K to avoid data being split over
* multiple BDs in cases where MTU > PAGE_SIZE.
*/
pkt_size = (((edev->ndev->mtu < ETH_DATA_LEN) ?
edev->ndev->mtu : ETH_DATA_LEN) + ETH_HLEN);
skb = netdev_alloc_skb(edev->ndev, pkt_size);
if (!skb) {