bnxt_en: Check TQM rings for maximum supported value.

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TQM rings are hardware resources that require host context memory
managed by the driver.  The driver supports up to 9 TQM rings and
the number of rings to use is requested by firmware during run-time.
Cap this number to the maximum supported to prevent accessing beyond
the array.  Future firmware may request more than 9 TQM rings.  Define
macros to remove the magic number 9 from the C code.

Fixes: ac3158cb01 ("bnxt_en: Allocate TQM ring context memory according to fw specification.")
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Reviewed-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Michael Chan 2020-12-27 14:18:18 -05:00 • committed by Jakub Kicinski

parent fb1e6e562b

commit a029a2fef5

2 changed files with 11 additions and 3 deletions

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7

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

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7

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

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