From: Salil Mehta <salil.mehta@huawei.com>
To: <davem@davemloft.net>, <kuba@kernel.org>
Cc: <salil.mehta@huawei.com>, <netdev@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, <linuxarm@huawei.com>,
<linuxarm@openeuler.org>, <intel-wired-lan@lists.osuosl.org>
Subject: [PATCH V3 net] ice: Re-organizes reqstd/avail {R,T}XQ check/code for efficiency
Date: Fri, 23 Apr 2021 01:00:18 +0100 [thread overview]
Message-ID: <20210423000018.20244-1-salil.mehta@huawei.com> (raw)
If user has explicitly requested the number of {R,T}XQs, then it is
unnecessary to get the count of already available {R,T}XQs from the
PF avail_{r,t}xqs bitmap. This value will get overridden by user specified
value in any case.
Re-organize this code for improving the flow, readability and efficiency.
This scope of improvement was found during the review of the ICE driver
code.
Fixes: 87324e747fde ("ice: Implement ethtool ops for channels")
Cc: intel-wired-lan@lists.osuosl.org
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
---
Change:
V2->V3
(*) Addressed some comments from Paul Menzel
Link: https://lkml.org/lkml/2021/4/21/136
V1->V2
(*) Fixed the comments from Anthony Nguyen(Intel)
Link: https://lkml.org/lkml/2021/4/12/1997
---
drivers/net/ethernet/intel/ice/ice_lib.c | 14 ++++++++------
1 file changed, 8 insertions(+), 6 deletions(-)
diff --git a/drivers/net/ethernet/intel/ice/ice_lib.c b/drivers/net/ethernet/intel/ice/ice_lib.c
index d13c7fc8fb0a..d77133d6baa7 100644
--- a/drivers/net/ethernet/intel/ice/ice_lib.c
+++ b/drivers/net/ethernet/intel/ice/ice_lib.c
@@ -161,12 +161,13 @@ static void ice_vsi_set_num_qs(struct ice_vsi *vsi, u16 vf_id)
switch (vsi->type) {
case ICE_VSI_PF:
- vsi->alloc_txq = min3(pf->num_lan_msix,
- ice_get_avail_txq_count(pf),
- (u16)num_online_cpus());
if (vsi->req_txq) {
vsi->alloc_txq = vsi->req_txq;
vsi->num_txq = vsi->req_txq;
+ } else {
+ vsi->alloc_txq = min3(pf->num_lan_msix,
+ ice_get_avail_txq_count(pf),
+ (u16)num_online_cpus());
}
pf->num_lan_tx = vsi->alloc_txq;
@@ -175,12 +176,13 @@ static void ice_vsi_set_num_qs(struct ice_vsi *vsi, u16 vf_id)
if (!test_bit(ICE_FLAG_RSS_ENA, pf->flags)) {
vsi->alloc_rxq = 1;
} else {
- vsi->alloc_rxq = min3(pf->num_lan_msix,
- ice_get_avail_rxq_count(pf),
- (u16)num_online_cpus());
if (vsi->req_rxq) {
vsi->alloc_rxq = vsi->req_rxq;
vsi->num_rxq = vsi->req_rxq;
+ } else {
+ vsi->alloc_rxq = min3(pf->num_lan_msix,
+ ice_get_avail_rxq_count(pf),
+ (u16)num_online_cpus());
}
}
--
2.17.1
next reply other threads:[~2021-04-23 0:01 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-23 0:00 Salil Mehta [this message]
2021-05-12 15:42 ` [Intel-wired-lan] [PATCH V3 net] ice: Re-organizes reqstd/avail {R, T}XQ check/code for efficiency Brelinski, TonyX
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