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authorSubbaraya Sundeep <sbhatta@marvell.com>2022-07-29 11:24:57 +0200
committerJakub Kicinski <kuba@kernel.org>2022-08-02 05:10:36 +0200
commit53e99496abc1b6e9897ad78cf169a06c77db1b5e (patch)
tree8ab5418c9fa1a721aa5cb389c9a9c64866fbf143
parentdccp: put dccp_qpolicy_full() and dccp_qpolicy_push() in the same lock (diff)
downloadlinux-53e99496abc1b6e9897ad78cf169a06c77db1b5e.tar.xz
linux-53e99496abc1b6e9897ad78cf169a06c77db1b5e.zip
octeontx2-pf: Reduce minimum mtu size to 60
PTP messages like SYNC, FOLLOW_UP, DELAY_REQ are of size 58 bytes. Using a minimum packet length as 64 makes NIX to pad 6 bytes of zeroes while transmission. This is causing latest ptp4l application to emit errors since length in PTP header and received packet are not same. Padding upto 3 bytes is fine but more than that makes ptp4l to assume the pad bytes as a TLV. Hence reduce the size to 60 from 64. Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com> Signed-off-by: Naveen Mamindlapalli <naveenm@marvell.com> Signed-off-by: Sunil Kovvuri Goutham <sgoutham@marvell.com> Link: https://lore.kernel.org/r/20220729092457.3850-1-naveenm@marvell.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
-rw-r--r--drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.h b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.h
index c88e8a436029..fbe62bbfb789 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.h
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.h
@@ -21,7 +21,7 @@
#define OTX2_HEAD_ROOM OTX2_ALIGN
#define OTX2_ETH_HLEN (VLAN_ETH_HLEN + VLAN_HLEN)
-#define OTX2_MIN_MTU 64
+#define OTX2_MIN_MTU 60
#define OTX2_MAX_GSO_SEGS 255
#define OTX2_MAX_FRAGS_IN_SQE 9