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net/sfc: allow one Rx queue entry carry many packet buffers

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One HW Rx descriptor has many packet buffers in the case of equal
stride super-buffer Rx modes. Each packet buffer is still treated
as separate SW Rx descriptor. rxq_entries is the size of HW Rx ring
whereas nb_rx_desc is the number of SW Rx descriptors.

Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Ivan Malov <ivan.malov@oktetlabs.ru>
This commit is contained in:
Andrew Rybchenko 2018-04-19 12:36:53 +01:00 committed by Ferruh Yigit
parent 7ee7e57c34
commit d3ab4fd9bd
1 changed files with 0 additions and 1 deletions
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drivers/net/sfc/sfc_rx.c
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@ -988,7 +988,6 @@ sfc_rx_qinit(struct sfc_adapter *sa, unsigned int sw_index,
goto fail_size_up_rings;
SFC_ASSERT(rxq_entries >= EFX_RXQ_MINNDESCS);
SFC_ASSERT(rxq_entries <= EFX_RXQ_MAXNDESCS);
SFC_ASSERT(rxq_entries >= nb_rx_desc);
SFC_ASSERT(rxq_max_fill_level <= nb_rx_desc);
rc = sfc_rx_qcheck_conf(sa, rxq_max_fill_level, rx_conf);