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bh=ZDhUhOE7wVvhlT6fRTts0o1L7ni+IAaP4sO+YA1/LPs=; b=WJbUIq3Y9+JQEeRHvtyVIUwV6dfcsRlSRm/lLxalzBcFDKXi8jqfyVPTDemwZ/R/It tBgI9EXtPTDnOJPBojaguQfVo/nt5Es3pcLM0u/zCt/NFXmnEWNaWFzsCQeQ+oVVXZFr m+UY2HhxnBp24x+emSTKuL3Hc0LwKlUkJGI1k3rCRqvhmvGbqRKmqHBjqHEbAifTZ7bD QP8ahsw6ZCg0Ze+xyXZiONwoFwo+o4ZqrGy2tdIV0Y+NzLrJ4j4Kklcm3pMLsVIg7BVY cU3vdfVlsyG/VkmEDxBaUq/B8QFHGWv7IkZFwmhCjtc60zR+gd59gNm//WaTe1/K1wZK 2Vyw== X-Gm-Message-State: AOAM532ymhn1Rm56BJeobcg8CBPih/6pBEAh7EOq1X5usmPk7W76MbNY KVDD97TJXm66OIbuVwAB2jwpPThoWJWlNPddyh8a6XwDdK3y2fw5z/+Cxdcw+ZxK4ae9/OQ+l5f VHVWoTCslJHTnG/3X5iI2V47mR7JwUxT3U44SRasO X-Received: by 2002:a05:6512:2189:: with SMTP id b9mr7974425lft.159.1627918010529; Mon, 02 Aug 2021 08:26:50 -0700 (PDT) X-Received: by 2002:a05:6512:2189:: with SMTP id b9mr7974367lft.159.1627918010313; Mon, 02 Aug 2021 08:26:50 -0700 (PDT) MIME-Version: 1.0 References: <20210720232624.1493424-1-nitesh@redhat.com> In-Reply-To: <20210720232624.1493424-1-nitesh@redhat.com> From: Nitesh Lal Date: Mon, 2 Aug 2021 11:26:39 -0400 Message-ID: Subject: Re: [PATCH v5 00/14] genirq: Cleanup the abuse of irq_set_affinity_hint() To: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org, jassisinghbrar@gmail.com, Viresh Kumar , Tushar.Khandelwal@arm.com, manivannan.sadhasivam@linaro.org, lewis.hanly@microchip.com, ley.foon.tan@intel.com, kabel@kernel.org, huangguangbin2@huawei.com, davem@davemloft.net, benve@cisco.com, govind@gmx.com, kashyap.desai@broadcom.com, Sumit Saxena , shivasharan.srikanteshwara@broadcom.com, sathya.prakash@broadcom.com, Sreekanth Reddy , suganath-prabu.subramani@broadcom.com, ajit.khaparde@broadcom.com, sriharsha.basavapatna@broadcom.com, somnath.kotur@broadcom.com, linux-pci@vger.kernel.org, Thomas Gleixner , rostedt@goodmis.org, Marc Zyngier Cc: Jesse Brandeburg , Robin Murphy , Marcelo Tosatti , Ingo Molnar , jbrandeb@kernel.org, Frederic Weisbecker , Juri Lelli , Alex Belits , Bjorn Helgaas , Peter Zijlstra , akpm@linuxfoundation.org, sfr@canb.auug.org.au, stephen@networkplumber.org, rppt@linux.vnet.ibm.com, chris.friesen@windriver.com, Neil Horman , pjwaskiewicz@gmail.com, Stefan Assmann , Tomas Henzl , james.smart@broadcom.com, Dick Kennedy , Ken Cox , faisal.latif@intel.com, shiraz.saleem@intel.com, tariqt@nvidia.com, Alaa Hleihel , Kamal Heib , borisp@nvidia.com, saeedm@nvidia.com, Nitesh Lal , "Nikolova, Tatyana E" , "Ismail, Mustafa" , Al Stone , Leon Romanovsky , Chandrakanth Patil , bjorn.andersson@linaro.org, chunkuang.hu@kernel.org, yongqiang.niu@mediatek.com, baolin.wang7@gmail.com, Petr Oros , Ming Lei , Ewan Milne , jejb@linux.ibm.com, martin.petersen@oracle.com, Jakub Kicinski Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jul 20, 2021 at 7:26 PM Nitesh Narayan Lal wrote: > > The drivers currently rely on irq_set_affinity_hint() to either set the > affinity_hint that is consumed by the userspace and/or to enforce a custom > affinity. > > irq_set_affinity_hint() as the name suggests is originally introduced to > only set the affinity_hint to help the userspace in guiding the interrupts > and not the affinity itself. However, since the commit > > e2e64a932556 "genirq: Set initial affinity in irq_set_affinity_hint()" > [...] > drivers/infiniband/hw/irdma/hw.c | 4 +- > drivers/mailbox/bcm-flexrm-mailbox.c | 4 +- > drivers/net/ethernet/cisco/enic/enic_main.c | 8 +-- > drivers/net/ethernet/emulex/benet/be_main.c | 4 +- > drivers/net/ethernet/huawei/hinic/hinic_rx.c | 4 +- > drivers/net/ethernet/intel/i40e/i40e_main.c | 8 +-- > drivers/net/ethernet/intel/iavf/iavf_main.c | 8 +-- > drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 10 ++-- > drivers/net/ethernet/mellanox/mlx4/eq.c | 8 ++- > .../net/ethernet/mellanox/mlx5/core/pci_irq.c | 8 +-- > drivers/scsi/lpfc/lpfc_init.c | 4 +- > drivers/scsi/megaraid/megaraid_sas_base.c | 27 +++++----- > drivers/scsi/mpt3sas/mpt3sas_base.c | 21 ++++---- > include/linux/interrupt.h | 53 ++++++++++++++++++- > kernel/irq/manage.c | 8 +-- > 15 files changed, 114 insertions(+), 65 deletions(-) > > -- > > Gentle ping. Any comments on the following patches: genirq: Provide new interfaces for affinity hints scsi: megaraid_sas: Use irq_set_affinity_and_hint scsi: mpt3sas: Use irq_set_affinity_and_hint enic: Use irq_update_affinity_hint be2net: Use irq_update_affinity_hint mailbox: Use irq_update_affinity_hint hinic: Use irq_set_affinity_and_hint or any other patches? -- Thanks Nitesh