user/sven/linux.git/drivers, branch v5.10.207

scsi: core: Always send batch on reset or error handling command

2024-01-12T19:56:38Z

commit 066c5b46b6eaf2f13f80c19500dbb3b84baabb33 upstream. In commit 8930a6c20791 ("scsi: core: add support for request batching") the block layer bd->last flag was mapped to SCMD_LAST and used as an indicator to send the batch for the drivers that implement this feature. However, the error handling code was not updated accordingly. scsi_send_eh_cmnd() is used to send error handling commands and request sense. The problem is that request sense comes as a single command that gets into the batch queue and times out. As a result the device goes offline after several failed resets. This was observed on virtio_scsi during a device resize operation. [ 496.316946] sd 0:0:4:0: [sdd] tag#117 scsi_eh_0: requesting sense [ 506.786356] sd 0:0:4:0: [sdd] tag#117 scsi_send_eh_cmnd timeleft: 0 [ 506.787981] sd 0:0:4:0: [sdd] tag#117 abort To fix this always set SCMD_LAST flag in scsi_send_eh_cmnd() and scsi_reset_ioctl(). Fixes: 8930a6c20791 ("scsi: core: add support for request batching") Cc: Signed-off-by: Alexander Atanasov Link: https://lore.kernel.org/r/20231215121008.2881653-1-alexander.atanasov@virtuozzo.com Reviewed-by: Ming Lei Signed-off-by: Martin K. Petersen Signed-off-by: Greg Kroah-Hartman

Revert "scsi: core: Use scsi_cmd_to_rq() instead of scsi_cmnd.request"

2024-01-12T19:56:38Z

This reverts commit df83ca8e986d0285974dfa510973191547dcd173 which is commit aa8e25e5006aac52c943c84e9056ab488630ee19 upstream. As reported, a lot of scsi changes were made just to resolve a 2 line patch, so let's revert them all and then manually fix up the 2 line fixup so that things are simpler and potential abi changes are not an issue. Link: https://lore.kernel.org/r/ZZ042FejzwMM5vDW@duo.ucw.cz Reported-by: Pavel Machek Cc: "Martin K. Petersen" Cc: Christoph Hellwig Cc: Hannes Reinecke Cc: Ming Lei Cc: Bart Van Assche Cc: Sasha Levin Signed-off-by: Greg Kroah-Hartman

Revert "scsi: core: Use a structure member to track the SCSI command submitter"

2024-01-12T19:56:37Z

This reverts commit f2d30198c0530b8da155697d8723e19ac72c15fe which is commit bf23e619039d360d503b7282d030daf2277a5d47 upstream. As reported, a lot of scsi changes were made just to resolve a 2 line patch, so let's revert them all and then manually fix up the 2 line fixup so that things are simpler and potential abi changes are not an issue. Link: https://lore.kernel.org/r/ZZ042FejzwMM5vDW@duo.ucw.cz Reported-by: Pavel Machek Cc: "Martin K. Petersen" Cc: Hannes Reinecke Cc: Ming Lei Cc: Christoph Hellwig Cc: Benjamin Block Cc: Bean Huo Cc: Bart Van Assche Cc: Sasha Levin Signed-off-by: Greg Kroah-Hartman

Revert "scsi: core: Always send batch on reset or error handling command"

2024-01-12T19:56:37Z

This reverts commit 9db5239d7533c841dcd7a36700f829f6ee96a76d which is commit 066c5b46b6eaf2f13f80c19500dbb3b84baabb33 upstream. As reported, a lot of scsi changes were made just to resolve a 2 line patch, so let's revert them all and then manually fix up the 2 line fixup so that things are simpler and potential abi changes are not an issue. Link: https://lore.kernel.org/r/ZZ042FejzwMM5vDW@duo.ucw.cz Reported-by: Pavel Machek Cc: "Martin K. Petersen" Cc: Ming Lei Cc: Sasha Levin Signed-off-by: Greg Kroah-Hartman

spi: atmel: Fix PDC transfer setup bug

2024-01-05T14:12:32Z

commit 75e33c55ae8fb4a177fe07c284665e1d61b02560 upstream. atmel_spi_dma_map_xfer to never be called in PDC mode. This causes the driver to silently fail. This patch changes the conditional to match the behaviour of the previous commit before the refactor. Fixes: 5fa5e6dec762 ("spi: atmel: Switch to transfer_one transfer method") Signed-off-by: Ville Baillie Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20210921072132.21831-1-villeb@bytesnap.co.uk Signed-off-by: Mark Brown Signed-off-by: Greg Kroah-Hartman

dm-integrity: don't modify bio's immutable bio_vec in integrity_metadata()

2024-01-05T14:12:31Z

commit b86f4b790c998afdbc88fe1aa55cfe89c4068726 upstream. __bio_for_each_segment assumes that the first struct bio_vec argument doesn't change - it calls "bio_advance_iter_single((bio), &(iter), (bvl).bv_len)" to advance the iterator. Unfortunately, the dm-integrity code changes the bio_vec with "bv.bv_len -= pos". When this code path is taken, the iterator would be out of sync and dm-integrity would report errors. This happens if the machine is out of memory and "kmalloc" fails. Fix this bug by making a copy of "bv" and changing the copy instead. Fixes: 7eada909bfd7 ("dm: add integrity target") Cc: stable@vger.kernel.org # v4.12+ Signed-off-by: Mikulas Patocka Signed-off-by: Mike Snitzer Signed-off-by: Greg Kroah-Hartman

scsi: core: Always send batch on reset or error handling command

2024-01-05T14:12:31Z

[ Upstream commit 066c5b46b6eaf2f13f80c19500dbb3b84baabb33 ] In commit 8930a6c20791 ("scsi: core: add support for request batching") the block layer bd->last flag was mapped to SCMD_LAST and used as an indicator to send the batch for the drivers that implement this feature. However, the error handling code was not updated accordingly. scsi_send_eh_cmnd() is used to send error handling commands and request sense. The problem is that request sense comes as a single command that gets into the batch queue and times out. As a result the device goes offline after several failed resets. This was observed on virtio_scsi during a device resize operation. [ 496.316946] sd 0:0:4:0: [sdd] tag#117 scsi_eh_0: requesting sense [ 506.786356] sd 0:0:4:0: [sdd] tag#117 scsi_send_eh_cmnd timeleft: 0 [ 506.787981] sd 0:0:4:0: [sdd] tag#117 abort To fix this always set SCMD_LAST flag in scsi_send_eh_cmnd() and scsi_reset_ioctl(). Fixes: 8930a6c20791 ("scsi: core: add support for request batching") Cc: Signed-off-by: Alexander Atanasov Link: https://lore.kernel.org/r/20231215121008.2881653-1-alexander.atanasov@virtuozzo.com Reviewed-by: Ming Lei Signed-off-by: Martin K. Petersen Signed-off-by: Sasha Levin

scsi: core: Use a structure member to track the SCSI command submitter

2024-01-05T14:12:31Z

[ Upstream commit bf23e619039d360d503b7282d030daf2277a5d47 ] Conditional statements are faster than indirect calls. Use a structure member to track the SCSI command submitter such that later patches can call scsi_done(scmd) instead of scmd->scsi_done(scmd). The asymmetric behavior that scsi_send_eh_cmnd() sets the submission context to the SCSI error handler and that it does not restore the submission context to the SCSI core is retained. Link: https://lore.kernel.org/r/20211007202923.2174984-2-bvanassche@acm.org Cc: Hannes Reinecke Cc: Ming Lei Cc: Christoph Hellwig Reviewed-by: Benjamin Block Reviewed-by: Bean Huo Signed-off-by: Bart Van Assche Signed-off-by: Martin K. Petersen Stable-dep-of: 066c5b46b6ea ("scsi: core: Always send batch on reset or error handling command") Signed-off-by: Sasha Levin

scsi: core: Use scsi_cmd_to_rq() instead of scsi_cmnd.request

2024-01-05T14:12:30Z

[ Upstream commit aa8e25e5006aac52c943c84e9056ab488630ee19 ] Prepare for removal of the request pointer by using scsi_cmd_to_rq() instead. Cast away constness where necessary when passing a SCSI command pointer to scsi_cmd_to_rq(). This patch does not change any functionality. Link: https://lore.kernel.org/r/20210809230355.8186-3-bvanassche@acm.org Cc: Christoph Hellwig Cc: Hannes Reinecke Cc: Ming Lei Reviewed-by: Hannes Reinecke Signed-off-by: Bart Van Assche Signed-off-by: Martin K. Petersen Stable-dep-of: 066c5b46b6ea ("scsi: core: Always send batch on reset or error handling command") Signed-off-by: Sasha Levin

spi: atmel: Fix CS and initialization bug

2024-01-05T14:12:30Z

[ Upstream commit 69e1818ad27bae167eeaaf6829d4a08900ef5153 ] Commit 5fa5e6dec762 ("spi: atmel: Switch to transfer_one transfer method") switched to using transfer_one and set_cs. The core doesn't call set_cs when the chip select lines are gpios. Add the SPI_MASTER_GPIO_SS flag to the driver to ensure the calls to set_cs happen since the driver programs configuration registers there. Fixes: 5fa5e6dec762 ("spi: atmel: Switch to transfer_one transfer method") Signed-off-by: Dan Sneddon Link: https://lore.kernel.org/r/20210629192218.32125-1-dan.sneddon@microchip.com Signed-off-by: Mark Brown Stable-dep-of: fc70d643a2f6 ("spi: atmel: Fix clock issue when using devices with different polarities") Signed-off-by: Sasha Levin