kernel/linux.git/drivers/scsi/lpfc/lpfc_debugfs.c, branch v6.2.2

scsi: lpfc: Fix various issues reported by tools

2022-09-16T02:18:28+00:00

This patch fixes below Smatch reported issues: 1. lpfc_hbadisc.c:3020 lpfc_mbx_cmpl_fcf_rr_read_fcf_rec() error: uninitialized symbol 'vlan_id'. 2. lpfc_hbadisc.c:3121 lpfc_mbx_cmpl_read_fcf_rec() error: uninitialized symbol 'vlan_id'. 3. lpfc_init.c:335 lpfc_dump_wakeup_param_cmpl() warn: always true condition '(prg->dist < 4) => (0-3 < 4)' 4. lpfc_init.c:2419 lpfc_parse_vpd() warn: inconsistent indenting. 5. lpfc_init.c:13248 lpfc_sli4_enable_msi() warn: 'phba->pcidev->irq' 2147483648 can't fit into 65535 'eqhdl->irq' 6. lpfc_debugfs.c:5300 lpfc_idiag_extacc_avail_get() error: uninitialized symbol 'ext_cnt' 7. lpfc_debugfs.c:5300 lpfc_idiag_extacc_avail_get() error: uninitialized symbol 'ext_size' 8. lpfc_vmid.c:248 lpfc_vmid_get_appid() warn: sleeping in atomic context. 9. lpfc_init.c:8342 lpfc_sli4_driver_resource_setup() warn: missing error code 'rc'. 10. lpfc_init.c:13573 lpfc_sli4_hba_unset() warn: variable dereferenced before check 'phba->pport' (see line 13546) 11. lpfc_auth.c:1923 lpfc_auth_handle_dhchap_reply() error: double free of 'hash_value' Fixes: 1. Initialize vlan_id to LPFC_FCOE_NULL_VID. 2. Initialize vlan_id to LPFC_FCOE_NULL_VID. 3. prg->dist is a 2 bit field. Its value can only be between 0-3. Remove redundent check 'if (prg->dist < 4)'. 4. Fix inconsistent indenting. Moved logic into helper function lpfc_fill_vpd(). 5. Define 'eqhdl->irq' as int value as pci_irq_vector() returns int. Also, check for return value of pci_irq_vector() and log message in case of failure. 6. Initialize 'ext_cnt' to 0. 7. Initialize 'ext_size' to 0. 8. Use alloc_percpu_gfp() with GFP_ATOMIC flag. 9. 'rc' was not updated when dma_pool_create() fails. Update 'rc = -ENOMEM' when dma_pool_create() fails before calling goto statement. 10. Add check for 'phba->pport' in lpfc_cpuhp_remove(). 11. Initialize 'hash_value' to NULL, same like 'aug_chal' variable. Link: https://lore.kernel.org/r/20220911221505.117655-13-jsmart2021@gmail.com Co-developed-by: Justin Tee Signed-off-by: Justin Tee Signed-off-by: James Smart Signed-off-by: Martin K. Petersen

scsi: lpfc: Rework MIB Rx Monitor debug info logic

2022-09-01T03:39:58+00:00

The kernel test robot reported the following sparse warning: arch/arm64/include/asm/cmpxchg.h:88:1: sparse: sparse: cast truncates bits from constant value (369 becomes 69) On arm64, atomic_xchg only works on 8-bit byte fields. Thus, the macro usage of LPFC_RXMONITOR_TABLE_IN_USE can be unintentionally truncated leading to all logic involving the LPFC_RXMONITOR_TABLE_IN_USE macro to not work properly. Replace the Rx Table atomic_t indexing logic with a new lpfc_rx_info_monitor structure that holds a circular ring buffer. For locking semantics, a spinlock_t is used. Link: https://lore.kernel.org/r/20220819011736.14141-4-jsmart2021@gmail.com Fixes: 17b27ac59224 ("scsi: lpfc: Add rx monitoring statistics") Cc: # v5.15+ Co-developed-by: Justin Tee Signed-off-by: Justin Tee Signed-off-by: James Smart Signed-off-by: Martin K. Petersen

scsi: lpfc: Copyright updates for 14.2.0.5 patches

2022-07-07T21:21:44+00:00

Update copyrights to 2022 for files modified in the 14.2.0.5 patch set. Link: https://lore.kernel.org/r/20220701211425.2708-13-jsmart2021@gmail.com Co-developed-by: Justin Tee Signed-off-by: Justin Tee Signed-off-by: James Smart Signed-off-by: Martin K. Petersen

scsi: lpfc: Prevent buffer overflow crashes in debugfs with malformed user input

2022-07-07T21:21:43+00:00

Malformed user input to debugfs results in buffer overflow crashes. Adapt input string lengths to fit within internal buffers, leaving space for NULL terminators. Link: https://lore.kernel.org/r/20220701211425.2708-3-jsmart2021@gmail.com Co-developed-by: Justin Tee Signed-off-by: Justin Tee Signed-off-by: James Smart Signed-off-by: Martin K. Petersen

scsi: lpfc: Use kcalloc()

2022-03-15T04:52:05+00:00

Use kcalloc() instead of kmalloc() + memset(). Link: https://lore.kernel.org/r/20220313141847.109804-1-Julia.Lawall@inria.fr Suggested-by: Joe Perches Signed-off-by: Julia Lawall Signed-off-by: Martin K. Petersen

Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

2022-01-14T13:37:34+00:00

Pull SCSI updates from James Bottomley: "This series consists of the usual driver updates (ufs, pm80xx, lpfc, mpi3mr, mpt3sas, hisi_sas, libsas) and minor updates and bug fixes. The most impactful change is likely the switch from GFP_DMA to GFP_KERNEL in a bunch of drivers, but even that shouldn't affect too many people" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (121 commits) scsi: mpi3mr: Bump driver version to 8.0.0.61.0 scsi: mpi3mr: Fixes around reply request queues scsi: mpi3mr: Enhanced Task Management Support Reply handling scsi: mpi3mr: Use TM response codes from MPI3 headers scsi: mpi3mr: Add io_uring interface support in I/O-polled mode scsi: mpi3mr: Print cable mngnt and temp threshold events scsi: mpi3mr: Support Prepare for Reset event scsi: mpi3mr: Add Event acknowledgment logic scsi: mpi3mr: Gracefully handle online FW update operation scsi: mpi3mr: Detect async reset that occurred in firmware scsi: mpi3mr: Add IOC reinit function scsi: mpi3mr: Handle offline FW activation in graceful manner scsi: mpi3mr: Code refactor of IOC init - part2 scsi: mpi3mr: Code refactor of IOC init - part1 scsi: mpi3mr: Fault IOC when internal command gets timeout scsi: mpi3mr: Display IOC firmware package version scsi: mpi3mr: Handle unaligned PLL in unmap cmnds scsi: mpi3mr: Increase internal cmnds timeout to 60s scsi: mpi3mr: Do access status validation before adding devices scsi: mpi3mr: Add support for PCIe Managed Switch SES device ...

scsi: lpfc: Terminate string in lpfc_debugfs_nvmeio_trc_write()

2021-12-17T03:46:30+00:00

The "mybuf" string comes from the user, so we need to ensure that it is NUL terminated. Link: https://lore.kernel.org/r/20211214070527.GA27934@kili Fixes: bd2cdd5e400f ("scsi: lpfc: NVME Initiator: Add debugfs support") Reviewed-by: James Smart Signed-off-by: Dan Carpenter Signed-off-by: Martin K. Petersen

scsi: lpfc: Add additional debugfs support for CMF

2021-12-07T03:35:37+00:00

Dump raw CMF parameter information in debugfs cgn_buffer. Link: https://lore.kernel.org/r/20211204002644.116455-9-jsmart2021@gmail.com Co-developed-by: Justin Tee Signed-off-by: Justin Tee Signed-off-by: James Smart Signed-off-by: Martin K. Petersen

scsi: lpfc: Adjust CMF total bytes and rxmonitor

2021-12-07T03:35:37+00:00

Calculate any extra bytes needed to account for timer accuracy. If we are less than LPFC_CMF_INTERVAL, then calculate the adjustment needed for total to reflect a full LPFC_CMF_INTERVAL. Add additional info to rxmonitor, and adjust some log formatting. Link: https://lore.kernel.org/r/20211204002644.116455-7-jsmart2021@gmail.com Co-developed-by: Justin Tee Signed-off-by: Justin Tee Signed-off-by: James Smart Signed-off-by: Martin K. Petersen

scsi: lpfc: Add debugfs support for cm framework buffers

2021-08-25T02:56:34+00:00

Add support via debugfs to report the cm statistics, cm enablement, and rx monitor information. Link: https://lore.kernel.org/r/20210816162901.121235-13-jsmart2021@gmail.com Co-developed-by: Justin Tee Signed-off-by: Justin Tee Signed-off-by: James Smart Signed-off-by: Martin K. Petersen