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IB/hfi1: Remove unnecessary fecn and becn fields

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packet->fecn and packet->becn are calculated in the hot path
and are never used. Remove these fields as they show to be
costly in a profile. Also, remove initialization for
becn and fecn in process_ecn() as they're unconditionally
assigned in the function and ensure fecn and becn variables
use a boolean type.

Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Sebastian Sanchez <sebastian.sanchez@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Sebastian Sanchez
2018-02-01 10:46:38 -08:00
committed by Jason Gunthorpe
parent bdaf96f650
commit ca85bb1ca9
7 changed files with 24 additions and 36 deletions
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4
drivers/infiniband/hw/hfi1/driver.c
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@@ -1440,8 +1440,6 @@ static int hfi1_setup_9B_packet(struct hfi1_packet *packet)
packet->sc = hfi1_9B_get_sc5(hdr, packet->rhf);
packet->pad = ib_bth_get_pad(packet->ohdr);
packet->extra_byte = 0;
packet->fecn = ib_bth_get_fecn(packet->ohdr);
packet->becn = ib_bth_get_becn(packet->ohdr);
packet->pkey = ib_bth_get_pkey(packet->ohdr);
packet->migrated = ib_bth_is_migration(packet->ohdr);
@@ -1508,8 +1506,6 @@ static int hfi1_setup_bypass_packet(struct hfi1_packet *packet)
packet->sl = ibp->sc_to_sl[packet->sc];
packet->pad = hfi1_16B_bth_get_pad(packet->ohdr);
packet->extra_byte = SIZE_OF_LT;
packet->fecn = hfi1_16B_get_fecn(packet->hdr);
packet->becn = hfi1_16B_get_becn(packet->hdr);
packet->pkey = hfi1_16B_get_pkey(packet->hdr);
packet->migrated = opa_bth_is_migration(packet->ohdr);