Gleb Chesnokov d002f0afd5 qla2x00t-32gbit: validate nvme_local_port correctly
The driver load failed with error message,

qla2xxx [0000:04:00.0]-ffff:0: register_localport failed: ret=ffffffef

and with a kernel crash,

	BUG: unable to handle kernel NULL pointer dereference at 0000000000000070
	Workqueue: events_unbound qla_register_fcport_fn [qla2xxx]
	RIP: 0010:nvme_fc_register_remoteport+0x16/0x430 [nvme_fc]
	RSP: 0018:ffffaaa040eb3d98 EFLAGS: 00010282
	RAX: 0000000000000000 RBX: ffff9dfb46b78c00 RCX: 0000000000000000
	RDX: ffff9dfb46b78da8 RSI: ffffaaa040eb3e08 RDI: 0000000000000000
	RBP: ffff9dfb612a0a58 R08: ffffffffaf1d6270 R09: 3a34303a30303030
	R10: 34303a303030305b R11: 2078787832616c71 R12: ffff9dfb46b78dd4
	R13: ffff9dfb46b78c24 R14: ffff9dfb41525300 R15: ffff9dfb46b78da8
	FS:  0000000000000000(0000) GS:ffff9dfc67c00000(0000) knlGS:0000000000000000
	CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
	CR2: 0000000000000070 CR3: 000000018da10004 CR4: 00000000000206f0
	Call Trace:
	qla_nvme_register_remote+0xeb/0x1f0 [qla2xxx]
	? qla2x00_dfs_create_rport+0x231/0x270 [qla2xxx]
	qla2x00_update_fcport+0x2a1/0x3c0 [qla2xxx]
	qla_register_fcport_fn+0x54/0xc0 [qla2xxx]

Exit the qla_nvme_register_remote() function when qla_nvme_register_hba()
fails and correctly validate nvme_local_port.

Cc: stable@vger.kernel.org
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Link: https://lore.kernel.org/r/20240710171057.35066-3-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
[ commit eb1d4ce26095 upstream ]
2024-09-04 14:34:12 +03:00
2023-04-28 15:22:58 +03:00
2024-01-15 15:33:45 +03:00
2024-01-15 15:33:45 +03:00
2024-01-15 15:33:45 +03:00
2024-01-15 15:33:45 +03:00

SCST

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Overview

This is the source code repository of the SCST project. SCST is a collection of Linux kernel drivers that implement SCSI target functionality. The SCST project includes:

  1. The SCST core in the scst/ subdirectory.
  2. A tool for loading, saving and modifying the SCST configuration in directory scstadmin/.
  3. Several SCSI target drivers in the directories iscsi-scst/, qla2x00t/, srpt/, scst_local/ and fcst/.
  4. User space programs in the usr/ subdirectory, e.g. fileio_tgt.
  5. Various documentation in the doc/ subdirectory.

Instructions for building and installing SCST are available in the INSTALL.md file.

QLogic target driver

Two QLogic target drivers are included in the SCST project.

The default driver is located in qla2x00t-32gbit directory and it supports up to 32 Gb/s FC. It is the newer one.

May anyone wish to switch back to the older driver that only supported up to 16 Gb/s adapters, it is located in qla2x00t directory. To make use of the older driver build scst with environment variable QLA_32GBIT=no set.

Vladislav Bolkhovitin vst@vlnb.net, http://scst.sourceforge.net

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