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octeontx2-pf: Reduce minimum mtu size to 60

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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>
This commit is contained in:
Subbaraya Sundeep 2022-07-29 14:54:57 +05:30 committed by Jakub Kicinski
parent a41b17ff9d
commit 53e99496ab
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.h
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@ -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