- 13 Aug, 2019 40 commits
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Bart Van Assche authored
The LIO core requires that the target driver callback functions .queue_data_in() and .queue_status() call target_put_sess_cmd() or transport_generic_free_cmd(). These calls may happen synchronously or asynchronously. Make sure that one of these LIO functions is called in case a command has been aborted. This patch avoids that the code for removing a session hangs due to commands that do not make progress. Cc: Himanshu Madhani <hmadhani@marvell.com> Fixes: 694833ee ("scsi: tcm_qla2xxx: Do not allow aborted cmd to advance.") # v4.13. Fixes: a07100e0 ("qla2xxx: Fix TMR ABORT interaction issue between qla2xxx and TCM") # v4.5. Signed-off-by:
Bart Van Assche <bvanassche@acm.org> Tested-by:
Himanshu Madhani <hmadhani@marvell.com> Reviewed-by:
Martin K. Petersen <martin.petersen@oracle.com>
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Bart Van Assche authored
This patch reduces code duplication. Cc: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by:
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Bart Van Assche authored
Since struct sg_table is used in nvme-fc-driver.h, include <linux/scatterlist.h> from that header file. Since no definitions or declarations from <linux/blk-mq.h> are used in the qla_nvme.h header file, do not include <linux/blk-mq.h> from that header file. Cc: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by:
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Bart Van Assche authored
Avoid that this function crashes if mcmd == NULL. Cc: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by:
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Bart Van Assche authored
Instead of allocating a struct srb dynamically from inside .queuecommand(), set qla2xxx_driver_template.cmd_size such that struct scsi_cmnd and struct srb are contiguous. Do not call QLA_QPAIR_MARK_BUSY() / QLA_QPAIR_MARK_NOT_BUSY() for SRBs associated with SCSI commands. That is safe because scsi_remove_host() is called before queue pairs are deleted and scsi_remove_host() waits for all outstanding SCSI commands to finish. Cc: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by:
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Bart Van Assche authored
This patch does not change any functionality but makes the next patch easier to read. Cc: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by:
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Bart Van Assche authored
Since all pointers passed to the srb_t.done() and srb_t.free() functions have type srb_t, change the type of the first argument of these functions from void * into struct srb *. This allows the compiler to verify the argument types for these functions. This patch does not change any functionality. Cc: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by:
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Bart Van Assche authored
Use the same approach for encoding the destination ID as the approach used by qlt_update_vp_map(). Cc: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by:
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Bart Van Assche authored
According to the firmware documentation responder mode must be set for ELS pass-through IOCBs if a response is expected. Cc: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by:
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Bart Van Assche authored
According to the firmware documentation the firmware expects all ELS pass-through IOCB parameters in little endian format. Make this explicit. Cc: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by:
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Bart Van Assche authored
This patch fixes several Coverity complaints about reading data that has not been initialized. Cc: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by:
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Bart Van Assche authored
This change makes it easier to detect qla24xx_read_flash_data() failures and also to handle such failures. This change does not modify the behavior of the driver since all callers ignore the qla24xx_read_flash_data() return value. Cc: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by:
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Bart Van Assche authored
Introduce the be_id_t and le_id_t data types for Fibre Channel source and destination ID formats supported by the firmware instead of using an uint8_t[3] array. Introduce functions for converting from and to the port_id_t data types. This patch does not change the behavior of the qla2xxx driver but improves source code readability and also allows the compiler to verify the endianness of Fibre Channel IDs. Cc: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by:
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Bart Van Assche authored
Failure of a soft reset is a severe failure. Hence report such failures. Cc: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by:
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Bart Van Assche authored
This patch makes the string manipulation code easier to verify. Cc: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by:
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Bart Van Assche authored
Pass the output buffer size to the code that generates a PCI info string and check the output buffer size while generating a PCI info string. Cc: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by:
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Bart Van Assche authored
Such a timeout is a severe issue. Hence complain if waiting for pending commands times out. This patch fixes a small bug: it modifies qla82xx_chip_reset_cleanup() such that the "Done waiting" message is reported if qla82xx_chip_reset_cleanup() succeeded instead of if that function failed. Cc: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by:
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Bart Van Assche authored
Make it clear to humans and also to the compiler that the string passed as fourth argument is not modified. Cc: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by:
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Bart Van Assche authored
This patch fixes several Coverity complaints about not always checking the qla2x00_wait_for_hba_online() return value. Cc: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by:
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Bart Van Assche authored
This patch does not change any functionality. Cc: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by:
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Bart Van Assche authored
This patch fixes the following Coverity complaint: Unintentional integer overflow (OVERFLOW_BEFORE_WIDEN) overflow_before_widen: Potentially overflowing expression dma_eng_num * 65536U with type unsigned int (32 bits, unsigned) is evaluated using 32-bit arithmetic, and then used in a context that expects an expression of type uint64_t (64 bits, unsigned). Cc: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by:
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Bart Van Assche authored
This was detected by Coverity. Cc: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by:
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Bart Van Assche authored
Set the r??_data_len variables before using these instead of after. This patch fixes the following Coverity complaint: const: At condition req_data_len != rsp_data_len, the value of req_data_len must be equal to 0. const: At condition req_data_len != rsp_data_len, the value of rsp_data_len must be equal to 0. dead_error_condition: The condition req_data_len != rsp_data_len cannot be true. Cc: Himanshu Madhani <hmadhani@marvell.com> Fixes: a9b6f722 ("[SCSI] qla2xxx: Implementation of bidirectional.") # v3.7. Signed-off-by:
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Bart Van Assche authored
Read the FC port state once instead of twice. This patch fixes the following Coverity complaint: Unchecked return value (CHECKED_RETURN) check_return: Calling atomic_read without checking return value (as is done elsewhere 80 out of 92 times). Cc: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by:
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Bart Van Assche authored
Since sess == NULL before 'goto out_term2' is executed, the code under 'if (sess)' cannot be reached. Hence remove that code. This was detected by Coverity. Cc: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by:
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Bart Van Assche authored
This patch fixes a Coverity complaint about not checking the sscanf() return value. Cc: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by:
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Bart Van Assche authored
This patch fixes the following Coverity complaint: Unchecked return value (CHECKED_RETURN) check_return: Calling wait_for_completion_timeout without checking return value (as is done elsewhere 14 out of 17 times). Cc: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by:
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Bart Van Assche authored
This patch fixes several gcc complaints about string truncation. Cc: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by:
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Bart Van Assche authored
Delete the PLOGIN ACK data structure from the vha->plogi_ack_list before freeing that data structure to avoid that that list gets corrupted. Cc: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by:
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Bart Van Assche authored
It is helpful when debugging this driver to have the firmware status code available if a mailbox command fails. Hence report that firmware status code. Cc: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by:
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Bart Van Assche authored
Pass the correct session ID to find_sess_by_s_id() instead of passing an uninitialized variable. Cc: Himanshu Madhani <hmadhani@marvell.com> Fixes: 2d70c103 ("[SCSI] qla2xxx: Add LLD target-mode infrastructure for >= 24xx series") # v3.5. Signed-off-by:
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Bart Van Assche authored
Instead of explicitly checking whether a timeout has occurred, ignore the del_timer() return value. Cc: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by:
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Bart Van Assche authored
Since qlt_remove_target() only calls qlt_release() if vha->vha_tgt.qla_tgt != NULL, checking that pointer inside qlt_release() is not necessary. This patch fixes the following Coverity complaint: CID 188348 (#1 of 1): Dereference after null check (FORWARD_NULL) var_deref_model: Passing null pointer &vha->vha_tgt.qla_tgt->tgt_list_entry to list_del, which dereferences it. Cc: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by:
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Bart Van Assche authored
Checking a pointer after it has been dereferenced is not useful. This was detected by Coverity. Cc: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by:
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Bart Van Assche authored
Simplify the implementation of this function by using the %phC format specifier instead of using explicit for-loops. Cc: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by:
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Bart Van Assche authored
This patch makes the code that parses the GID list easier to read without changing the behavior of the code. Cc: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by:
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Bart Van Assche authored
Make sure that locking assumptions are verified at runtime if kernel debugging is enabled. Cc: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by:
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Bart Van Assche authored
This patch does not change any functionality but fixes a Coverity complaint about using a scalar as an array. Cc: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by:
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Bart Van Assche authored
Make it clear that the CDB is not modified after processing of a SCSI command has started. Cc: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by:
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Bart Van Assche authored
This patch makes it clear that the tag, hwq and qpair variables are only used in the mq path. Cc: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by:
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