BMC/Intel-BMC/linux.git/drivers/scsi/ipr.c, branch dev-4.4

ipr: Clear interrupt on croc/crocodile when running with LSI

2016-08-10T09:49:29+00:00

commit 54e430bbd490e18ab116afa4cd90dcc45787b3df upstream. If we fall back to using LSI on the Croc or Crocodile chip we need to clear the interrupt so we don't hang the system. Tested-by: Benjamin Herrenschmidt Signed-off-by: Brian King Signed-off-by: Martin K. Petersen Signed-off-by: Greg Kroah-Hartman

ipr: Fix regression when loading firmware

2016-04-12T16:08:58+00:00

commit 21b81716c6bff24cda52dc75588455f879ddbfe9 upstream. Commit d63c7dd5bcb9 ("ipr: Fix out-of-bounds null overwrite") removed the end of line handling when storing the update_fw sysfs attribute. This changed the userpace API because it started refusing writes terminated by a line feed, which broke the update tools we already have. This patch re-adds that handling, so both a write terminated by a line feed or not can make it through with the update. Fixes: d63c7dd5bcb9 ("ipr: Fix out-of-bounds null overwrite") Signed-off-by: Gabriel Krisman Bertazi Cc: Insu Yun Acked-by: Brian King Signed-off-by: Martin K. Petersen Cc: Ben Hutchings Signed-off-by: Greg Kroah-Hartman

ipr: Fix out-of-bounds null overwrite

2016-04-12T16:08:58+00:00

commit d63c7dd5bcb9441af0526d370c43a65ca2c980d9 upstream. Return value of snprintf is not bound by size value, 2nd argument. (https://www.kernel.org/doc/htmldocs/kernel-api/API-snprintf.html). Return value is number of printed chars, can be larger than 2nd argument. Therefore, it can write null byte out of bounds ofbuffer. Since snprintf puts null, it does not need to put additional null byte. Signed-off-by: Insu Yun Reviewed-by: Shane Seymour Signed-off-by: Martin K. Petersen Cc: Ben Hutchings Signed-off-by: Greg Kroah-Hartman

Merge tag '4.4-scsi-mkp' into misc

2015-11-12T12:06:18+00:00

SCSI queue for 4.4. Signed-off-by: Martin K. Petersen

scsi: use host wide tags by default

2015-11-10T01:11:57+00:00

This patch changes the !blk-mq path to the same defaults as the blk-mq I/O path by always enabling block tagging, and always using host wide tags. We've had blk-mq available for a few releases so bugs with this mode should have been ironed out, and this ensures we get better coverage of over tagging setup over different configs. Signed-off-by: Christoph Hellwig Acked-by: Jens Axboe Reviewed-by: Hannes Reinecke Signed-off-by: James Bottomley

ipr: Issue Configure Cache Parameters command.

2015-11-10T00:32:08+00:00

Some new adapters require a special Configure Cache Parameters command to enable the adapter write cache, so send this during the adapter initialization if the adapter requires it. Signed-off-by: Gabriel Krisman Bertazi Acked-by: Brian King Reviewed-by: Wen Xiong Signed-off-by: Martin K. Petersen

ipr: Inquiry IOA page 0xC4 during initialization.

2015-11-10T00:31:37+00:00

Add an IOA Inquiry command for Page 0xC4 during IOA initialization to collect cache capabilities, particularly to check if Sync IOA Write Cache is supported. Inquiry will happen right after Cap Inquiry on page 0xD0; and will execute only if the "Supported Pages" field in Inquiry Page 0x0 shows support for Page 0xC4. Otherwise, assume Sync IOA Write Cache is not supported. Signed-off-by: Gabriel Krisman Bertazi Acked-by: Brian King Reviewed-by: Wen Xiong Signed-off-by: Martin K. Petersen

ipr: Don't set NO_ULEN_CHK bit when resource is a vset.

2015-11-10T00:31:01+00:00

According to the IPR specification, Inhibit Underlength Checking bit must be disabled when issuing commands to vsets. Enabling it in this case might cause SCSI commands to fail with an Illegal Request, so make sure we keep this bit cleared when resource is a vset. Signed-off-by: Gabriel Krisman Bertazi Reviewed-by: Manoj Kumar Acked-by: Brian King Reviewed-by: Wen Xiong Signed-off-by: Martin K. Petersen

ipr: Add delay to ensure coherent dumps.

2015-11-10T00:29:54+00:00

Add a holding pattern prior to collecting dump data, to wait for the IOA indication that the Mailbox register is stable and won't change without an explicit reset. This ensures we'll be collecting meaningful dump data, even when dumping right after an adapter reset. In the event of a timeout, we still force the dump, since a partial dump still might be useful. Signed-off-by: Gabriel Krisman Bertazi Acked-by: Brian King Reviewed-by: Wen Xiong Signed-off-by: Martin K. Petersen

ipr: Enable SIS pipe commands for SIS-32 devices.

2015-08-28T20:14:53+00:00

Remove unnecessary check that disabled SIS pipe commands for SIS-32 devices. This change was sufficient to enable raw mode and send SIS pipe commands for a 57B3 device. Fixes: f8ee25d7d239 ("ipr: AF DASD raw mode implementation in ipr driver") Signed-off-by: Gabriel Krisman Bertazi Reviewed-by: Wen Xiong Acked-by: Brian King Signed-off-by: James Bottomley