diff mbox series

[for-next,4/7] RDMA/irdma: Make resource distribution algorithm more QP oriented

Message ID 20220705230815.265-5-shiraz.saleem@intel.com (mailing list archive)
State Accepted
Headers show
Series irdma for-next updates 7-5-2022 | expand

Commit Message

Saleem, Shiraz July 5, 2022, 11:08 p.m. UTC 
From: Nayan Kumar <nayan.kumar@intel.com>

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.

Signed-off-by: Nayan Kumar <nayan.kumar@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
---
 drivers/infiniband/hw/irdma/ctrl.c | 8 +++++---
 drivers/infiniband/hw/irdma/hw.c   | 5 +----
 2 files changed, 6 insertions(+), 7 deletions(-)
diff mbox series

Patch

diff --git a/drivers/infiniband/hw/irdma/ctrl.c b/drivers/infiniband/hw/irdma/ctrl.c
index 58c0e18..a41e0d2 100644
--- a/drivers/infiniband/hw/irdma/ctrl.c
+++ b/drivers/infiniband/hw/irdma/ctrl.c
@@ -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 &&
diff --git a/drivers/infiniband/hw/irdma/hw.c b/drivers/infiniband/hw/irdma/hw.c
index bb60431..8abbd50 100644
--- a/drivers/infiniband/hw/irdma/hw.c
+++ b/drivers/infiniband/hw/irdma/hw.c
@@ -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);