LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
From: Nitesh Narayan Lal <nitesh@redhat.com>
To: linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org,
	intel-wired-lan@lists.osuosl.org, netdev@vger.kernel.org,
	linux-api@vger.kernel.org, linux-pci@vger.kernel.org,
	tglx@linutronix.de, jesse.brandeburg@intel.com,
	robin.murphy@arm.com, mtosatti@redhat.com, mingo@kernel.org,
	jbrandeb@kernel.org, frederic@kernel.org, juri.lelli@redhat.com,
	abelits@marvell.com, bhelgaas@google.com, rostedt@goodmis.org,
	peterz@infradead.org, davem@davemloft.net,
	akpm@linux-foundation.org, sfr@canb.auug.org.au,
	stephen@networkplumber.org, rppt@linux.vnet.ibm.com,
	chris.friesen@windriver.com, maz@kernel.org,
	nhorman@tuxdriver.com, pjwaskiewicz@gmail.com,
	sassmann@redhat.com, thenzl@redhat.com,
	kashyap.desai@broadcom.com, sumit.saxena@broadcom.com,
	shivasharan.srikanteshwara@broadcom.com,
	sathya.prakash@broadcom.com, sreekanth.reddy@broadcom.com,
	suganath-prabu.subramani@broadcom.com, james.smart@broadcom.com,
	dick.kennedy@broadcom.com, jkc@redhat.com,
	faisal.latif@intel.com, shiraz.saleem@intel.com,
	tariqt@nvidia.com, ahleihel@redhat.com, kheib@redhat.com,
	borisp@nvidia.com, saeedm@nvidia.com, benve@cisco.com,
	govind@gmx.com, jassisinghbrar@gmail.com,
	ajit.khaparde@broadcom.com, sriharsha.basavapatna@broadcom.com,
	somnath.kotur@broadcom.com, nilal@redhat.com,
	tatyana.e.nikolova@intel.com, mustafa.ismail@intel.com,
	ahs3@redhat.com, leonro@nvidia.com,
	chandrakanth.patil@broadcom.com, bjorn.andersson@linaro.org,
	chunkuang.hu@kernel.org, yongqiang.niu@mediatek.com,
	baolin.wang7@gmail.com, poros@redhat.com, minlei@redhat.com,
	emilne@redhat.com, jejb@linux.ibm.com,
	martin.petersen@oracle.com, _govind@gmx.com, kabel@kernel.org,
	viresh.kumar@linaro.org, Tushar.Khandelwal@arm.com,
	kuba@kernel.org
Subject: [PATCH v5 12/14] hinic: Use irq_set_affinity_and_hint
Date: Tue, 20 Jul 2021 19:26:22 -0400	[thread overview]
Message-ID: <20210720232624.1493424-13-nitesh@redhat.com> (raw)
In-Reply-To: <20210720232624.1493424-1-nitesh@redhat.com>

The driver uses irq_set_affinity_hint() to:

- Set the affinity_hint which is consumed by the userspace for
  distributing the interrupts

- Enforce affinity

As per commit 352f58b0d9f2 ("net-next/hinic: Set Rxq irq to specific cpu
for NUMA"), the hinic driver enforces its own affinity to bind IRQs to the
local NUMA node. However, irq_set_affinity_hint() applying the provided
cpumask as an affinity for the interrupt is an undocumented side effect.

To remove this side effect irq_set_affinity_hint() has been marked as
deprecated and new interfaces have been introduced. Hence, replace the
irq_set_affinity_hint() with the new interface irq_set_affinity_and_hint()
where the provided mask needs to be applied as the affinity and
affinity_hint pointer needs to be set and replace with
irq_update_affinity_hint() where only affinity_hint needs to be updated.

Signed-off-by: Nitesh Narayan Lal <nitesh@redhat.com>
---
 drivers/net/ethernet/huawei/hinic/hinic_rx.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/huawei/hinic/hinic_rx.c b/drivers/net/ethernet/huawei/hinic/hinic_rx.c
index fed3b6bc0d76..b33ed4d92b71 100644
--- a/drivers/net/ethernet/huawei/hinic/hinic_rx.c
+++ b/drivers/net/ethernet/huawei/hinic/hinic_rx.c
@@ -548,7 +548,7 @@ static int rx_request_irq(struct hinic_rxq *rxq)
 		goto err_req_irq;
 
 	cpumask_set_cpu(qp->q_id % num_online_cpus(), &rq->affinity_mask);
-	err = irq_set_affinity_hint(rq->irq, &rq->affinity_mask);
+	err = irq_set_affinity_and_hint(rq->irq, &rq->affinity_mask);
 	if (err)
 		goto err_irq_affinity;
 
@@ -565,7 +565,7 @@ static void rx_free_irq(struct hinic_rxq *rxq)
 {
 	struct hinic_rq *rq = rxq->rq;
 
-	irq_set_affinity_hint(rq->irq, NULL);
+	irq_update_affinity_hint(rq->irq, NULL);
 	free_irq(rq->irq, rxq);
 	rx_del_napi(rxq);
 }
-- 
2.27.0


  parent reply	other threads:[~2021-07-20 23:31 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-20 23:26 [PATCH v5 00/14] genirq: Cleanup the abuse of irq_set_affinity_hint() Nitesh Narayan Lal
2021-07-20 23:26 ` [PATCH v5 01/14] genirq: Provide new interfaces for affinity hints Nitesh Narayan Lal
2021-08-06 15:51   ` Ming Lei
2021-07-20 23:26 ` [PATCH v5 02/14] iavf: Use irq_update_affinity_hint Nitesh Narayan Lal
2021-07-20 23:26 ` [PATCH v5 03/14] i40e: " Nitesh Narayan Lal
2021-07-20 23:26 ` [PATCH v5 04/14] scsi: megaraid_sas: Use irq_set_affinity_and_hint Nitesh Narayan Lal
2021-08-06 11:31   ` Sumit Saxena
2021-07-20 23:26 ` [PATCH v5 05/14] scsi: mpt3sas: " Nitesh Narayan Lal
2021-08-06  8:54   ` Sreekanth Reddy
2021-07-20 23:26 ` [PATCH v5 06/14] RDMA/irdma: Use irq_update_affinity_hint Nitesh Narayan Lal
2021-07-22 18:25   ` Nikolova, Tatyana E
2021-07-20 23:26 ` [PATCH v5 07/14] enic: " Nitesh Narayan Lal
2021-08-16 17:53   ` Christian Benvenuti (benve)
2021-07-20 23:26 ` [PATCH v5 08/14] be2net: " Nitesh Narayan Lal
2021-07-20 23:26 ` [PATCH v5 09/14] ixgbe: " Nitesh Narayan Lal
2021-07-20 23:26 ` [PATCH v5 10/14] mailbox: " Nitesh Narayan Lal
2021-08-16 18:11   ` Jassi Brar
2021-07-20 23:26 ` [PATCH v5 11/14] scsi: lpfc: Use irq_set_affinity Nitesh Narayan Lal
2021-07-23 17:15   ` James Smart
2021-07-20 23:26 ` Nitesh Narayan Lal [this message]
2021-07-20 23:26 ` [PATCH v5 13/14] net/mlx5: Use irq_set_affinity_and_hint Nitesh Narayan Lal
2021-07-20 23:26 ` [PATCH v5 14/14] net/mlx4: Use irq_update_affinity_hint Nitesh Narayan Lal
2021-08-02 15:26 ` [PATCH v5 00/14] genirq: Cleanup the abuse of irq_set_affinity_hint() Nitesh Lal
2021-08-06  3:04   ` Martin K. Petersen
2021-08-06 14:56     ` Nitesh Lal
2021-08-16 15:50   ` Nitesh Lal
2021-08-30 15:38     ` Nitesh Lal
2021-08-30 15:40       ` Nitesh Lal

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20210720232624.1493424-13-nitesh@redhat.com \
    --to=nitesh@redhat.com \
    --cc=Tushar.Khandelwal@arm.com \
    --cc=_govind@gmx.com \
    --cc=abelits@marvell.com \
    --cc=ahleihel@redhat.com \
    --cc=ahs3@redhat.com \
    --cc=ajit.khaparde@broadcom.com \
    --cc=akpm@linux-foundation.org \
    --cc=baolin.wang7@gmail.com \
    --cc=benve@cisco.com \
    --cc=bhelgaas@google.com \
    --cc=bjorn.andersson@linaro.org \
    --cc=borisp@nvidia.com \
    --cc=chandrakanth.patil@broadcom.com \
    --cc=chris.friesen@windriver.com \
    --cc=chunkuang.hu@kernel.org \
    --cc=davem@davemloft.net \
    --cc=dick.kennedy@broadcom.com \
    --cc=emilne@redhat.com \
    --cc=faisal.latif@intel.com \
    --cc=frederic@kernel.org \
    --cc=govind@gmx.com \
    --cc=intel-wired-lan@lists.osuosl.org \
    --cc=james.smart@broadcom.com \
    --cc=jassisinghbrar@gmail.com \
    --cc=jbrandeb@kernel.org \
    --cc=jejb@linux.ibm.com \
    --cc=jesse.brandeburg@intel.com \
    --cc=jkc@redhat.com \
    --cc=juri.lelli@redhat.com \
    --cc=kabel@kernel.org \
    --cc=kashyap.desai@broadcom.com \
    --cc=kheib@redhat.com \
    --cc=kuba@kernel.org \
    --cc=leonro@nvidia.com \
    --cc=linux-api@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-pci@vger.kernel.org \
    --cc=linux-scsi@vger.kernel.org \
    --cc=martin.petersen@oracle.com \
    --cc=maz@kernel.org \
    --cc=mingo@kernel.org \
    --cc=minlei@redhat.com \
    --cc=mtosatti@redhat.com \
    --cc=mustafa.ismail@intel.com \
    --cc=netdev@vger.kernel.org \
    --cc=nhorman@tuxdriver.com \
    --cc=nilal@redhat.com \
    --cc=peterz@infradead.org \
    --cc=pjwaskiewicz@gmail.com \
    --cc=poros@redhat.com \
    --cc=robin.murphy@arm.com \
    --cc=rostedt@goodmis.org \
    --cc=rppt@linux.vnet.ibm.com \
    --cc=saeedm@nvidia.com \
    --cc=sassmann@redhat.com \
    --cc=sathya.prakash@broadcom.com \
    --cc=sfr@canb.auug.org.au \
    --cc=shiraz.saleem@intel.com \
    --cc=shivasharan.srikanteshwara@broadcom.com \
    --cc=somnath.kotur@broadcom.com \
    --cc=sreekanth.reddy@broadcom.com \
    --cc=sriharsha.basavapatna@broadcom.com \
    --cc=stephen@networkplumber.org \
    --cc=suganath-prabu.subramani@broadcom.com \
    --cc=sumit.saxena@broadcom.com \
    --cc=tariqt@nvidia.com \
    --cc=tatyana.e.nikolova@intel.com \
    --cc=tglx@linutronix.de \
    --cc=thenzl@redhat.com \
    --cc=viresh.kumar@linaro.org \
    --cc=yongqiang.niu@mediatek.com \
    --subject='Re: [PATCH v5 12/14] hinic: Use irq_set_affinity_and_hint' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).