bnxt_en: Do not set EOP on RX AGG BDs on 5760X chips

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With End-of-Packet padding (EOP) set, the chip will disable Relaxed
Ordering (RO) of TPA data packets.  A TPA segment with EOP set will be
padded to the next cache boundary and can potentially overwrite the
beginning bytes of the next TPA segment when RO is enabled on 5760X.
To prevent that, the chip disables RO for TPA when EOP is set.

To take advantge of RO and higher performance, do not set EOP on
5760X chips when TPA is enabled.  Define a proper RX_BD_FLAGS_AGG_EOP
constant to make it clear that we are setting EOP.

Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com>
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Link: https://patch.msgid.link/20251126215648.1885936-6-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Michael Chan 2025-11-26 13:56:46 -08:00 • committed by Jakub Kicinski

parent b1e7f9566f

commit 30f253f8d9

2 changed files with 9 additions and 1 deletions

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9

drivers/net/ethernet/broadcom/bnxt/bnxt.c

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1

drivers/net/ethernet/broadcom/bnxt/bnxt.h

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