linux-stable/drivers/scsi/qla2xxx
Mauricio Faria de Oliveira 1535aa75a3 scsi: qla2xxx: fix invalid DMA access after command aborts in PCI device remove
If a command is aborted in the kernel but not in the adapter, it might be
considered complete and its DMA memory released, but it is still alive in
the adapter, which will trigger an invalid DMA access upon its completion
(in the DMA operations to deliver the command response to the driver).

On powerpc platforms with IOMMU/EEH capabilities, the problem is observed
during PCI device removal with ongoing IO requests -- which might trigger
an EEH event very often, pointing to a 'TCE Request Page Access Error'.

In that path, which is qla2x00_remove_one(), the commands are aborted in
qla2x00_abort_all_cmds(), which does not perform an abort in the adapter
as is done in qla2xxx_eh_abort() for example.

So, this patch changes qla2x00_abort_all_cmds() to abort commands in the
adapter too, with a call to qla2xxx_eh_abort(), which already implements
all the logic to submit abort requests and handle responses.

Reported-by: Naresh Bannoth <nbannoth@in.ibm.com>
Signed-off-by: Mauricio Faria de Oliveira <mauricfo@linux.vnet.ibm.com>
Acked-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-11-08 19:13:52 -05:00
..
Kconfig tcm_qla2xxx Add SCSI command jammer/discard capability 2016-05-10 01:27:17 -07:00
Makefile
qla_attr.c qla2xxx: Disable the adapter and skip error recovery in case of register disconnect. 2016-07-15 15:35:50 -04:00
qla_bsg.c qla2xxx: Add bsg interface to support statistics counter reset. 2016-07-15 15:35:37 -04:00
qla_bsg.h qla2xxx: Add bsg interface to support statistics counter reset. 2016-07-15 15:35:37 -04:00
qla_dbg.c qla2xxx: Fix duplicate message id. 2016-07-15 15:35:51 -04:00
qla_dbg.h
qla_def.h scsi: qla2xxx: Use struct t10_pi_tuple 2016-09-15 09:41:56 -04:00
qla_devtbl.h
qla_dfs.c qla2xxx: Add DebugFS node for target sess list. 2016-03-10 21:48:27 -08:00
qla_fw.h qla2xxx: Fix BBCR offset 2016-07-15 15:35:51 -04:00
qla_gbl.h qla2xxx: Add bsg interface to support D_Port Diagnostics. 2016-07-15 15:31:31 -04:00
qla_gs.c
qla_init.c qla2xxx: Let DPORT be enabled purely by nvram. 2016-07-15 15:35:48 -04:00
qla_inline.h qla2xxx: Avoid side effects when using endianizer macros. 2016-02-23 21:27:02 -05:00
qla_iocb.c qla2xxx: Added interface to send explicit LOGO. 2016-01-07 13:57:43 -08:00
qla_isr.c scsi: qla2xxx: Use struct t10_pi_tuple 2016-09-15 09:41:56 -04:00
qla_mbx.c qla2xxx: Fix duplicate message id. 2016-07-15 15:35:51 -04:00
qla_mid.c qla2xxx: Fix stale pointer access. 2016-02-06 19:44:30 -08:00
qla_mr.c qla2xxx: Remove use of 'struct timeval' 2016-04-15 16:53:18 -04:00
qla_mr.h
qla_nx.c qla2xxx: Indicate out-of-memory with -ENOMEM 2016-04-11 16:57:09 -04:00
qla_nx.h scsi/qla2xxx: Remove erroneous unused macro qla82xx_get_temp_val1() 2016-06-21 13:22:39 +02:00
qla_nx2.c
qla_nx2.h
qla_os.c scsi: qla2xxx: fix invalid DMA access after command aborts in PCI device remove 2016-11-08 19:13:52 -05:00
qla_settings.h
qla_sup.c treewide: Fix typos in printk 2016-04-28 10:52:28 +02:00
qla_target.c qla2xxx: Properly initialize IO statistics. 2016-07-15 15:31:31 -04:00
qla_target.h tcm_qla2xxx: introduce a private sess_kref 2016-05-10 01:19:33 -07:00
qla_tmpl.c qla2xxx: Add ram area DDR for fwdump template entry T262. 2016-07-15 15:31:31 -04:00
qla_tmpl.h
qla_version.h qla2xxx: Update driver version to 8.07.00.38-k 2016-07-15 15:35:52 -04:00
tcm_qla2xxx.c tcm_qla2xxx Add SCSI command jammer/discard capability 2016-05-10 01:27:17 -07:00
tcm_qla2xxx.h tcm_qla2xxx Add SCSI command jammer/discard capability 2016-05-10 01:27:17 -07:00