From: Lukasz Czapnik <lukasz.czapnik@intel.com>
Date: Thu, 27 Feb 2020 10:15:00 -0800
Subject: ice: Increase mailbox receive queue length to maximum
Patch-mainline: v5.7-rc1
Git-commit: c8a1071df934934a63e80b0bbd068b37043715e6
References: jsc#SLE-12878
Currently the PF's mailbox receive queue is only 512 entries. This fine,
but considering that all VF's mailbox send queues funnel into the PF's
single mailbox receive queue, let's increase it to the maximum size. This
will help prevent any possible bottleneck/slowdown occurring from the PF's
mailbox receive queue being full.
Signed-off-by: Lukasz Czapnik <lukasz.czapnik@intel.com>
Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/net/ethernet/intel/ice/ice.h | 1 -
drivers/net/ethernet/intel/ice/ice_main.c | 2 +-
2 files changed, 1 insertion(+), 2 deletions(-)
--- a/drivers/net/ethernet/intel/ice/ice.h
+++ b/drivers/net/ethernet/intel/ice/ice.h
@@ -60,7 +60,6 @@ extern const char ice_drv_ver[];
#define ICE_INT_NAME_STR_LEN (IFNAMSIZ + 16)
#define ICE_AQ_LEN 64
#define ICE_MBXSQ_LEN 64
-#define ICE_MBXRQ_LEN 512
#define ICE_MIN_MSIX 2
#define ICE_NO_VSI 0xffff
#define ICE_VSI_MAP_CONTIG 0
--- a/drivers/net/ethernet/intel/ice/ice_main.c
+++ b/drivers/net/ethernet/intel/ice/ice_main.c
@@ -1518,7 +1518,7 @@ static void ice_set_ctrlq_len(struct ice
hw->adminq.num_sq_entries = ICE_AQ_LEN;
hw->adminq.rq_buf_size = ICE_AQ_MAX_BUF_LEN;
hw->adminq.sq_buf_size = ICE_AQ_MAX_BUF_LEN;
- hw->mailboxq.num_rq_entries = ICE_MBXRQ_LEN;
+ hw->mailboxq.num_rq_entries = PF_MBX_ARQLEN_ARQLEN_M;
hw->mailboxq.num_sq_entries = ICE_MBXSQ_LEN;
hw->mailboxq.rq_buf_size = ICE_MBXQ_MAX_BUF_LEN;
hw->mailboxq.sq_buf_size = ICE_MBXQ_MAX_BUF_LEN;