All of lore.kernel.org
 help / color / mirror / Atom feed
* [PATCH V3 net] ice: Re-organizes reqstd/avail {R,T}XQ check/code for efficiency
@ 2021-04-23  0:00 ` Salil Mehta
  0 siblings, 0 replies; 4+ messages in thread
From: Salil Mehta @ 2021-04-23  0:00 UTC (permalink / raw)
  To: davem, kuba
  Cc: salil.mehta, netdev, linux-kernel, linuxarm, linuxarm, intel-wired-lan

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


^ permalink raw reply related	[flat|nested] 4+ messages in thread
* [Intel-wired-lan] [PATCH V3 net] ice: Re-organizes reqstd/avail {R, T}XQ check/code for efficiency
@ 2021-04-23  0:00 ` Salil Mehta
  0 siblings, 0 replies; 4+ messages in thread
From: Salil Mehta @ 2021-04-23  0:00 UTC (permalink / raw)
  To: intel-wired-lan

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 at 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


^ permalink raw reply related	[flat|nested] 4+ messages in thread
* RE: [Intel-wired-lan] [PATCH V3 net] ice: Re-organizes reqstd/avail {R, T}XQ check/code for efficiency
  2021-04-23  0:00 ` [Intel-wired-lan] [PATCH V3 net] ice: Re-organizes reqstd/avail {R, T}XQ " Salil Mehta
@ 2021-05-12 15:42   ` Brelinski, TonyX
  -1 siblings, 0 replies; 4+ messages in thread
From: Brelinski, TonyX @ 2021-05-12 15:42 UTC (permalink / raw)
  To: Salil Mehta, davem, kuba
  Cc: netdev, linuxarm, linuxarm, linux-kernel, intel-wired-lan

> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces@osuosl.org> On Behalf Of
> Salil Mehta
> Sent: Thursday, April 22, 2021 5:00 PM
> To: davem@davemloft.net; kuba@kernel.org
> Cc: salil.mehta@huawei.com; netdev@vger.kernel.org;
> linuxarm@huawei.com; linuxarm@openeuler.org; linux-
> kernel@vger.kernel.org; intel-wired-lan@lists.osuosl.org
> Subject: [Intel-wired-lan] [PATCH V3 net] ice: Re-organizes reqstd/avail {R,
> T}XQ check/code for efficiency
> 
> 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(-)

Tested-by: Tony Brelinski <tonyx.brelinski@intel.com> (A Contingent Worker at Intel)

^ permalink raw reply	[flat|nested] 4+ messages in thread
* [Intel-wired-lan] [PATCH V3 net] ice: Re-organizes reqstd/avail {R, T}XQ check/code for efficiency
@ 2021-05-12 15:42   ` Brelinski, TonyX
  0 siblings, 0 replies; 4+ messages in thread
From: Brelinski, TonyX @ 2021-05-12 15:42 UTC (permalink / raw)
  To: intel-wired-lan

> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces@osuosl.org> On Behalf Of
> Salil Mehta
> Sent: Thursday, April 22, 2021 5:00 PM
> To: davem at davemloft.net; kuba at kernel.org
> Cc: salil.mehta at huawei.com; netdev at vger.kernel.org;
> linuxarm at huawei.com; linuxarm at openeuler.org; linux-
> kernel at vger.kernel.org; intel-wired-lan at lists.osuosl.org
> Subject: [Intel-wired-lan] [PATCH V3 net] ice: Re-organizes reqstd/avail {R,
> T}XQ check/code for efficiency
> 
> 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 at 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(-)

Tested-by: Tony Brelinski <tonyx.brelinski@intel.com> (A Contingent Worker at Intel)

^ permalink raw reply	[flat|nested] 4+ messages in thread
end of thread, other threads:[~2021-05-12 16:52 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-04-23  0:00 [PATCH V3 net] ice: Re-organizes reqstd/avail {R,T}XQ check/code for efficiency Salil Mehta
2021-04-23  0:00 ` [Intel-wired-lan] [PATCH V3 net] ice: Re-organizes reqstd/avail {R, T}XQ " Salil Mehta
2021-05-12 15:42 ` Brelinski, TonyX
2021-05-12 15:42   ` Brelinski, TonyX

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.