- Aug 12, 2021
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Shai Malin authored
Driver fastpath employs doorbells to indicate to the device that work is available. Each doorbell translates to a message sent to the device over PCI. These messages are queued by the doorbell queue HW block, and handled by the HW. If a sufficient amount of CPU cores are sending messages at a sufficient rate, the queue can overflow, and messages can be dropped. There are many entities in the driver which can send doorbell messages. When overflow happens, a fatal HW attention is indicated, and the Doorbell HW block stops accepting new doorbell messages until recovery procedure is done. When overflow occurs, all doorbells are dropped. Since doorbells are aggregatives, if more doorbells are sent nothing has to be done. But if the "last" doorbell is dropped, the doorbelling entity doesn’t know this happened, and may wait forever for the device to perform the action. The doorbell recovery mechanism addresses just that - it sends the last doorbell of every entity. [mkp: fix missing brackets reported by Guenter Roeck] Link: https://lore.kernel.org/r/20210804221412.5048-1-smalin@marvell.com Co-developed-by:
Manish Rangankar <mrangankar@marvell.com> Signed-off-by:
Shai Malin <smalin@marvell.com> Signed-off-by:
Martin K. Petersen <martin.petersen@oracle.com>
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Martin K. Petersen authored
Resolve mpt3sas conflict between 5.14/scsi-fixes and 5.15/scsi-staging reported by sfr. Signed-off-by: -
Martin K. Petersen authored
Use scsi_prot_ref_tag() instead of scsi_get_lba() to get the reference tag for a given I/O. Link: https://lore.kernel.org/r/20210806040023.5355-3-martin.petersen@oracle.com Reviewed-by:
Bart Van Assche <bvanassche@acm.org> Signed-off-by:
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Martin K. Petersen authored
Link: https://lore.kernel.org/r/20210806040023.5355-2-martin.petersen@oracle.com Cc: Bart Van Assche <bvanassche@acm.org> Reviewed-by:
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Bart Van Assche authored
Since all scsi_cmnd.request users are gone, remove the request pointer from struct scsi_cmnd. Link: https://lore.kernel.org/r/20210809230355.8186-53-bvanassche@acm.org Cc: Christoph Hellwig <hch@lst.de> Cc: Hannes Reinecke <hare@suse.de> Cc: Ming Lei <ming.lei@redhat.com> Signed-off-by:
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Martin K. Petersen authored
Prepare for removal of the request pointer by using scsi_cmd_to_rq() instead. This patch does not change any functionality. Link: https://lore.kernel.org/r/20210809230355.8186-1-bvanassche@acm.org Signed-off-by:
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Martin K. Petersen authored
Prepare for removal of the request pointer by using scsi_cmd_to_rq() instead. This patch does not change any functionality. Link: https://lore.kernel.org/r/20210809230355.8186-1-bvanassche@acm.org Signed-off-by:
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Bart Van Assche authored
Prepare for removal of the request pointer by using scsi_cmd_to_rq() instead. This patch does not change any functionality. Link: https://lore.kernel.org/r/20210809230355.8186-52-bvanassche@acm.org Acked-by:
Alan Stern <stern@rowland.harvard.edu> Signed-off-by:
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Bart Van Assche authored
Prepare for removal of the request pointer by using scsi_cmd_to_rq() instead. This patch does not change any functionality. Link: https://lore.kernel.org/r/20210809230355.8186-51-bvanassche@acm.org Signed-off-by:
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Bart Van Assche authored
Prepare for removal of the request pointer by using scsi_cmd_to_rq() instead. This patch does not change any functionality. Link: https://lore.kernel.org/r/20210809230355.8186-50-bvanassche@acm.org Signed-off-by:
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Bart Van Assche authored
Prepare for removal of the request pointer by using scsi_cmd_to_rq() instead. This patch does not change any functionality. Link: https://lore.kernel.org/r/20210809230355.8186-49-bvanassche@acm.org Acked-by:
Michael S. Tsirkin <mst@redhat.com> Signed-off-by:
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Bart Van Assche authored
Prepare for removal of the request pointer by using scsi_cmd_to_rq() instead. This patch does not change any functionality. Link: https://lore.kernel.org/r/20210809230355.8186-48-bvanassche@acm.org Reviewed-by:
Daejun Park <daejun7.park@samsung.com> Signed-off-by:
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Bart Van Assche authored
Prepare for removal of the request pointer by using scsi_cmd_to_rq() instead. This patch does not change any functionality. Link: https://lore.kernel.org/r/20210809230355.8186-47-bvanassche@acm.org Signed-off-by:
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Bart Van Assche authored
Prepare for removal of the request pointer by using scsi_cmd_to_rq() instead. This patch does not change any functionality. Link: https://lore.kernel.org/r/20210809230355.8186-46-bvanassche@acm.org Signed-off-by:
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Bart Van Assche authored
Prepare for removal of the request pointer by using scsi_cmd_to_rq() instead. This patch does not change any functionality. Link: https://lore.kernel.org/r/20210809230355.8186-45-bvanassche@acm.org Signed-off-by:
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Bart Van Assche authored
Prepare for removal of the request pointer by using scsi_cmd_to_rq() instead. This patch does not change any functionality. Link: https://lore.kernel.org/r/20210809230355.8186-44-bvanassche@acm.org Signed-off-by:
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Bart Van Assche authored
Prepare for removal of the request pointer by using scsi_cmd_to_rq() instead. This patch does not change any functionality. Link: https://lore.kernel.org/r/20210809230355.8186-43-bvanassche@acm.org Signed-off-by:
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Bart Van Assche authored
Prepare for removal of the request pointer by using scsi_cmd_to_rq() instead. This patch does not change any functionality. Link: https://lore.kernel.org/r/20210809230355.8186-42-bvanassche@acm.org Acked-by:
Douglas Gilbert <dgilbert@interlog.com> Signed-off-by:
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Bart Van Assche authored
Prepare for removal of the request pointer by using scsi_cmd_to_rq() instead. This patch does not change any functionality. Link: https://lore.kernel.org/r/20210809230355.8186-41-bvanassche@acm.org Signed-off-by:
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Bart Van Assche authored
Prepare for removal of the request pointer by using scsi_cmd_to_rq() instead. This patch does not change any functionality. Link: https://lore.kernel.org/r/20210809230355.8186-40-bvanassche@acm.org Signed-off-by:
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Bart Van Assche authored
Prepare for removal of the request pointer by using scsi_cmd_to_rq() instead. This patch does not change any functionality. Link: https://lore.kernel.org/r/20210809230355.8186-39-bvanassche@acm.org Signed-off-by:
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Bart Van Assche authored
Prepare for removal of the request pointer by using scsi_cmd_to_rq() instead. Remove the unused CMD_REQUEST() macro. This patch does not change any functionality. Link: https://lore.kernel.org/r/20210809230355.8186-38-bvanassche@acm.org Signed-off-by:
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Bart Van Assche authored
Prepare for removal of the request pointer by using scsi_cmd_to_rq() instead. This patch does not change any functionality. Link: https://lore.kernel.org/r/20210809230355.8186-37-bvanassche@acm.org Signed-off-by:
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Bart Van Assche authored
Prepare for removal of the request pointer by using scsi_cmd_to_rq() instead. This patch does not change any functionality. Link: https://lore.kernel.org/r/20210809230355.8186-36-bvanassche@acm.org Signed-off-by:
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Bart Van Assche authored
Prepare for removal of the request pointer by using scsi_cmd_to_rq() instead. This patch does not change any functionality. Link: https://lore.kernel.org/r/20210809230355.8186-35-bvanassche@acm.org Signed-off-by:
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Bart Van Assche authored
Prepare for removal of the request pointer by using scsi_cmd_to_rq() instead. This patch does not change any functionality. Link: https://lore.kernel.org/r/20210809230355.8186-34-bvanassche@acm.org Signed-off-by:
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Bart Van Assche authored
Prepare for removal of the request pointer by using scsi_cmd_to_rq() instead. This patch does not change any functionality. Link: https://lore.kernel.org/r/20210809230355.8186-33-bvanassche@acm.org Signed-off-by:
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Bart Van Assche authored
Prepare for removal of the request pointer by using scsi_cmd_to_rq() instead. This patch does not change any functionality. Link: https://lore.kernel.org/r/20210809230355.8186-32-bvanassche@acm.org Signed-off-by:
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Bart Van Assche authored
Prepare for removal of the request pointer by using scsi_cmd_to_rq() instead. This patch does not change any functionality. Link: https://lore.kernel.org/r/20210809230355.8186-31-bvanassche@acm.org Signed-off-by:
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Bart Van Assche authored
Prepare for removal of the request pointer by using scsi_cmd_to_rq() instead. This patch does not change any functionality. Link: https://lore.kernel.org/r/20210809230355.8186-30-bvanassche@acm.org Signed-off-by:
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Bart Van Assche authored
Prepare for removal of the request pointer by using scsi_cmd_to_rq() instead. This patch does not change any functionality. Link: https://lore.kernel.org/r/20210809230355.8186-29-bvanassche@acm.org Signed-off-by:
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Bart Van Assche authored
Prepare for removal of the request pointer by using scsi_cmd_to_rq() instead. This patch does not change any functionality. Link: https://lore.kernel.org/r/20210809230355.8186-28-bvanassche@acm.org Signed-off-by:
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Bart Van Assche authored
Prepare for removal of the request pointer by using scsi_cmd_to_rq() instead. This patch does not change any functionality. Link: https://lore.kernel.org/r/20210809230355.8186-27-bvanassche@acm.org Reviewed-by:
John Garry <john.garry@huawei.com> Signed-off-by:
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Bart Van Assche authored
Prepare for removal of the request pointer by using scsi_cmd_to_rq() instead. This patch does not change any functionality. Link: https://lore.kernel.org/r/20210809230355.8186-26-bvanassche@acm.org Signed-off-by:
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Bart Van Assche authored
Prepare for removal of the request pointer by using scsi_cmd_to_rq() instead. This patch does not change any functionality. Link: https://lore.kernel.org/r/20210809230355.8186-25-bvanassche@acm.org Signed-off-by:
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Bart Van Assche authored
Prepare for removal of the request pointer by using scsi_cmd_to_rq() instead. This patch does not change any functionality. Link: https://lore.kernel.org/r/20210809230355.8186-24-bvanassche@acm.org Signed-off-by:
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Bart Van Assche authored
Prepare for removal of the request pointer by using scsi_cmd_to_rq() instead. This patch does not change any functionality. Link: https://lore.kernel.org/r/20210809230355.8186-23-bvanassche@acm.org Acked-by:
Don Brace <don.brace@microchip.com> Signed-off-by:
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Bart Van Assche authored
Prepare for removal of the request pointer by using scsi_cmd_to_rq() instead. This patch does not change any functionality. Link: https://lore.kernel.org/r/20210809230355.8186-22-bvanassche@acm.org Acked-by:
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Bart Van Assche authored
Prepare for removal of the request pointer by using scsi_cmd_to_rq() instead. This patch does not change any functionality. Link: https://lore.kernel.org/r/20210809230355.8186-21-bvanassche@acm.org Signed-off-by:
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Bart Van Assche authored
Prepare for removal of the request pointer by using scsi_cmd_to_rq() instead. This patch does not change any functionality. Link: https://lore.kernel.org/r/20210809230355.8186-20-bvanassche@acm.org Signed-off-by:
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