bnxt_en: Fix page pool logic for page size >= 64K

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The RXBD length field on all bnxt chips is 16-bit and so we cannot
support a full page when the native page size is 64K or greater.
The non-XDP (non page pool) code path has logic to handle this but
the XDP page pool code path does not handle this.  Add the missing
logic to use page_pool_dev_alloc_frag() to allocate 32K chunks if
the page size is 64K or greater.

Fixes: 9f4b28301c ("bnxt: XDP multibuffer enablement")
Link: https://lore.kernel.org/netdev/20230728231829.235716-2-michael.chan@broadcom.com/
Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com>
Signed-off-by: Somnath Kotur <somnath.kotur@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Link: https://lore.kernel.org/r/20230731142043.58855-2-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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This commit is contained in:

Somnath Kotur 2023-07-31 07:20:42 -07:00 • committed by Jakub Kicinski

parent 3ff1617450

commit f6974b4c2d

2 changed files with 29 additions and 19 deletions

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42

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

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6

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

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