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b=zGv5b2xeQV6T0SS7gQqixOYzzhRB9McyWQoP9IrmTR8wxhGcMo/mz+aaXqxAIZQrjs6aCY XkV2woJOVIha7TCw== Received: from imap1.dmz-prg2.suse.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by imap1.dmz-prg2.suse.org (Postfix) with ESMTPS id 1FBD413946; Mon, 8 Sep 2025 06:08:21 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id LzsgBtVyvmjfLAAAD6G6ig (envelope-from ); Mon, 08 Sep 2025 06:08:21 +0000 Message-ID: <4d3b2fed-e42c-46f0-82d2-93eca2940759@suse.de> Date: Mon, 8 Sep 2025 08:08:20 +0200 Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v8 07/12] scsi: Use block layer helpers to constrain queue affinity To: Daniel Wagner , Jens Axboe , Keith Busch , Christoph Hellwig , Sagi Grimberg , "Michael S. Tsirkin" Cc: Aaron Tomlin , "Martin K. Petersen" , Thomas Gleixner , Costa Shulyupin , Juri Lelli , Valentin Schneider , Waiman Long , Ming Lei , Frederic Weisbecker , Mel Gorman , Mathieu Desnoyers , linux-kernel@vger.kernel.org, linux-block@vger.kernel.org, linux-nvme@lists.infradead.org, megaraidlinux.pdl@broadcom.com, linux-scsi@vger.kernel.org, storagedev@microchip.com, virtualization@lists.linux.dev, GR-QLogic-Storage-Upstream@marvell.com References: <20250905-isolcpus-io-queues-v8-0-885984c5daca@kernel.org> <20250905-isolcpus-io-queues-v8-7-885984c5daca@kernel.org> Content-Language: en-US From: Hannes Reinecke In-Reply-To: <20250905-isolcpus-io-queues-v8-7-885984c5daca@kernel.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Level: X-Spam-Flag: NO X-Rspamd-Queue-Id: D8D4E2433F X-Rspamd-Action: no action X-Rspamd-Server: rspamd1.dmz-prg2.suse.org X-Spamd-Result: default: False [-4.51 / 50.00]; BAYES_HAM(-3.00)[100.00%]; NEURAL_HAM_LONG(-1.00)[-1.000]; R_DKIM_ALLOW(-0.20)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; NEURAL_HAM_SHORT(-0.20)[-1.000]; MIME_GOOD(-0.10)[text/plain]; MX_GOOD(-0.01)[]; RECEIVED_SPAMHAUS_BLOCKED_OPENRESOLVER(0.00)[2a07:de40:b281:106:10:150:64:167:received]; FUZZY_RATELIMITED(0.00)[rspamd.com]; MIME_TRACE(0.00)[0:+]; RCPT_COUNT_TWELVE(0.00)[25]; RCVD_VIA_SMTP_AUTH(0.00)[]; ARC_NA(0.00)[]; RCVD_TLS_ALL(0.00)[]; TO_DN_SOME(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; FROM_HAS_DN(0.00)[]; MID_RHS_MATCH_FROM(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; TO_MATCH_ENVRCPT_ALL(0.00)[]; DBL_BLOCKED_OPENRESOLVER(0.00)[imap1.dmz-prg2.suse.org:rdns,imap1.dmz-prg2.suse.org:helo,suse.de:dkim,suse.de:mid,suse.de:email]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; DKIM_TRACE(0.00)[suse.de:+] X-Spam-Score: -4.51 On 9/5/25 16:59, Daniel Wagner wrote: > Ensure that IRQ affinity setup also respects the queue-to-CPU mapping > constraints provided by the block layer. This allows the SCSI drivers > to avoid assigning interrupts to CPUs that the block layer has excluded > (e.g., isolated CPUs). > > Only convert drivers which are already using the > pci_alloc_irq_vectors_affinity with the PCI_IRQ_AFFINITY flag set. > Because these drivers are enabled to let the IRQ core code to > set the affinity. Also don't update qla2xxx because the nvme-fabrics > code is not ready yet. > > Signed-off-by: Daniel Wagner > --- > drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 1 + > drivers/scsi/megaraid/megaraid_sas_base.c | 5 ++++- > drivers/scsi/mpi3mr/mpi3mr_fw.c | 6 +++++- > drivers/scsi/mpt3sas/mpt3sas_base.c | 5 ++++- > drivers/scsi/pm8001/pm8001_init.c | 1 + > 5 files changed, 15 insertions(+), 3 deletions(-) > Reviewed-by: Hannes Reinecke Cheers, Hannes -- Dr. Hannes Reinecke Kernel Storage Architect hare@suse.de +49 911 74053 688 SUSE Software Solutions GmbH, Frankenstr. 146, 90461 Nürnberg HRB 36809 (AG Nürnberg), GF: I. Totev, A. McDonald, W. Knoblich