bnxt_en: Modify the ring reservation functions for 57500 series chips.
authorMichael Chan <michael.chan@broadcom.com>
Sun, 14 Oct 2018 11:02:48 +0000 (07:02 -0400)
committerDavid S. Miller <davem@davemloft.net>
Tue, 16 Oct 2018 05:44:32 +0000 (22:44 -0700)
commit41e8d7983752f2a0ada01fac11cbac7413e7beec
tree362045f4fd72230d080e1e31d9d72b70c4f019b6
parent9c1fabdf424f27370790f1e0868b35cf63b70981
bnxt_en: Modify the ring reservation functions for 57500 series chips.

The ring reservation functions have to be modified for P5 chips in the
following ways:

- bnxt_cp_ring_info structs map to internal NQs as well as CP rings.
- Ring groups are not used.
- 1 CP ring must be available for each RX or TX ring.
- number of RSS contexts to reserve is multiples of 64 RX rings.
- RFS currently not supported.

Also, RX AGG rings are only used for jumbo frames, so we need to
unconditionally call bnxt_reserve_rings() in __bnxt_open_nic()
to see if we need to reserve AGG rings in case MTU has changed.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/broadcom/bnxt/bnxt.c