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RDMA/irdma: Make resource distribution algorithm more QP oriented 

Adapt the resource distribution algorithm in irdma_cfg_fpm_val to be more
QP oriented. If the configuration is too big for the available memory,
trim the MR and PBLE's first before trimming the QPs. This also avoids
having to double QPs requested as input to algorithm for GEN1 devices.

Link: https://lore.kernel.org/r/20220705230815.265-5-shiraz.saleem@intel.com
Signed-off-by: Nayan Kumar <nayan.kumar@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
This commit is contained in:
Nayan Kumar 2022-07-05 18:08:12 -05:00 committed by Leon Romanovsky
parent 36a26d1239
commit c8c7c07581
2 changed files with 6 additions and 7 deletions
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8
drivers/infiniband/hw/irdma/ctrl.c
View File

@ -4872,10 +4872,12 @@ int irdma_cfg_fpm_val(struct irdma_sc_dev *dev, u32 qp_count)
sd_diff = sd_needed - hmc_fpm_misc->max_sds;
if (sd_diff > 128) {
if (qpwanted > 128 && sd_diff > 144)
if (!(loop_count % 2) && qpwanted > 128) {
qpwanted /= 2;
mrwanted /= 2;
pblewanted /= 2;
} else {
mrwanted /= 2;
pblewanted /= 2;
}
continue;
}
if (dev->cqp->hmc_profile != IRDMA_HMC_PROFILE_FAVOR_VF &&

5
drivers/infiniband/hw/irdma/hw.c
View File

@ -1512,10 +1512,7 @@ static int irdma_hmc_setup(struct irdma_pci_f *rf)
int status;
u32 qpcnt;
if (rf->rdma_ver == IRDMA_GEN_1)
qpcnt = rsrc_limits_table[rf->limits_sel].qplimit * 2;
else
qpcnt = rsrc_limits_table[rf->limits_sel].qplimit;
qpcnt = rsrc_limits_table[rf->limits_sel].qplimit;
rf->sd_type = IRDMA_SD_TYPE_DIRECT;
status = irdma_cfg_fpm_val(&rf->sc_dev, qpcnt);