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path: root/drivers/scsi/lpfc
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2020-08-04scsi: lpfc: Fix RSCN timeout due to incorrect gidft counterDick Kennedy
In configs with a large number of initiators in the same zone (>250), RSCN timeouts are seen when creating or deleting vports: lpfc 0000:07:00.1: 5:(0):0231 RSCN timeout Data: x0 x3 During RSCN processing driver issues GID_FT command to nameserver. A counter for number of simultaneous GID_FT commands is maintained (an unsigned value). The counter is incremented when the GID_FT is issued. If the GID_FT command fails for some reason the driver retries the GID_FT from the completion call back. But the counter was decremented before the retry was issued. When the second GID_FT completes, the callback again tries to decrement the counter, possibly wrapping to a very large non-zero value, which causes the RSCN cleanup code to not execute. Thus the RSCN timeout failure. Do not decrement the counter on a retry. Also add defensive checks to ensure the counter is not decremented if already zero. Link: https://lore.kernel.org/r/20200803210229.23063-4-jsmart2021@gmail.com Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-08-04scsi: lpfc: Fix no message shown for lpfc_hdw_queue out of range valueDick Kennedy
If module parameters override the default configuration settings for hardware queues or irqs, the driver was not notifying the change from defaults. Revise such that any changes will result in a kernel log message. Link: https://lore.kernel.org/r/20200803210229.23063-3-jsmart2021@gmail.com Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-08-04scsi: lpfc: Fix FCoE speed reportingDick Kennedy
Current Link speed was shown as "unknown" in sysfs for FCoE ports. In this scenario, the port was working in 20G speed, which happens to not be a speed handled by the driver. Add support for all possible link speeds that could get reported from port_speed field in link state ACQE. Additionally, as supported_speeds can't be manipulated via the FCoE driver on a converged ethernet port (it must be managed by the nic function), don't fill out the supported_speeds field for the fc host object in sysfs. Revise debug logging to report Link speed mgmt valuess. Link: https://lore.kernel.org/r/20200803210229.23063-2-jsmart2021@gmail.com Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-08-04scsi: lpfc: Add missing misc_deregister() for lpfc_init()Jing Xiangfeng
lpfc_init() misses a call misc_deregister() in an error path. Add a label 'unregister' to fix it. Link: https://lore.kernel.org/r/20200731065639.190646-1-jingxiangfeng@huawei.com Reviewed-by: James Smart <james.smart@broadcom.com> Signed-off-by: Jing Xiangfeng <jingxiangfeng@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-08-04scsi: lpfc: nvmet: Avoid hang / use-after-free again when destroying targetportEwan D. Milne
We cannot wait on a completion object in the lpfc_nvme_targetport structure in the _destroy_targetport() code path because the NVMe/fc transport will free that structure immediately after the .targetport_delete() callback. This results in a use-after-free, and a crash if slub_debug=FZPU is enabled. An earlier fix put put the completion on the stack, but commit 2a0fb340fcc8 ("scsi: lpfc: Correct localport timeout duration error") subsequently changed the code to reference the completion through a pointer in the object rather than the local stack variable. Fix this by using the stack variable directly. Link: https://lore.kernel.org/r/20200729231011.13240-1-emilne@redhat.com Fixes: 2a0fb340fcc8 ("scsi: lpfc: Correct localport timeout duration error") Reviewed-by: James Smart <james.smart@broadcom.com> Signed-off-by: Ewan D. Milne <emilne@redhat.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-28scsi: lpfc: Fix typo in comment for ULPFerruh Yigit
UPL -> ULP for "Upper Layer Protocol" Link: https://lore.kernel.org/r/20200728145606.1601726-1-ferruh.yigit@intel.com Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-24scsi: lpfc: Add description for lpfc_release_rpi()'s 'ndlpl paramLee Jones
Fixes the following W=1 kernel build warning(s): drivers/scsi/lpfc/lpfc_nportdisc.c:1079: warning: Function parameter or member 'ndlp' not described in 'lpfc_release_rpi' Link: https://lore.kernel.org/r/20200723122446.1329773-20-lee.jones@linaro.org Cc: James Smart <james.smart@broadcom.com> Cc: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-24scsi: lpfc: Fix a bunch of kerneldoc misdemeanorsLee Jones
Adding, removing and correcting function parameter descriptions. Fixes the following W=1 kernel build warning(s): drivers/scsi/lpfc/lpfc_mbox.c:886: warning: Function parameter or member 'vport' not described in 'lpfc_reg_vpi' drivers/scsi/lpfc/lpfc_mbox.c:886: warning: Excess function parameter 'phba' description in 'lpfc_reg_vpi' drivers/scsi/lpfc/lpfc_mbox.c:886: warning: Excess function parameter 'vpi' description in 'lpfc_reg_vpi' drivers/scsi/lpfc/lpfc_mbox.c:886: warning: Excess function parameter 'sid' description in 'lpfc_reg_vpi' drivers/scsi/lpfc/lpfc_mbox.c:1218: warning: Function parameter or member 'ring' not described in 'lpfc_config_ring' drivers/scsi/lpfc/lpfc_mbox.c:1626: warning: Function parameter or member 'mboxq' not described in 'lpfc_mbox_tmo_val' drivers/scsi/lpfc/lpfc_mbox.c:1626: warning: Excess function parameter 'cmd' description in 'lpfc_mbox_tmo_val' drivers/scsi/lpfc/lpfc_mbox.c:1710: warning: Function parameter or member 'sge' not described in 'lpfc_sli4_mbx_sge_get' drivers/scsi/lpfc/lpfc_mbox.c:1780: warning: Function parameter or member 'emb' not described in 'lpfc_sli4_config' drivers/scsi/lpfc/lpfc_mbox.c:2027: warning: Function parameter or member 'mboxq' not described in 'lpfc_sli4_mbx_read_fcf_rec' drivers/scsi/lpfc/lpfc_mbox.c:2078: warning: Function parameter or member 'phba' not described in 'lpfc_request_features' Link: https://lore.kernel.org/r/20200723122446.1329773-19-lee.jones@linaro.org Cc: James Smart <james.smart@broadcom.com> Cc: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-24scsi: lpfc: Add and rename a whole bunch of function parameter descriptionsLee Jones
Fixes the following W=1 kernel build warning(s): drivers/scsi/lpfc/lpfc_init.c:1136: warning: Function parameter or member 't' not described in 'lpfc_hb_timeout' drivers/scsi/lpfc/lpfc_init.c:1136: warning: Excess function parameter 'ptr' description in 'lpfc_hb_timeout' drivers/scsi/lpfc/lpfc_init.c:1170: warning: Function parameter or member 't' not described in 'lpfc_rrq_timeout' drivers/scsi/lpfc/lpfc_init.c:1170: warning: Excess function parameter 'ptr' description in 'lpfc_rrq_timeout' drivers/scsi/lpfc/lpfc_init.c:1232: warning: Function parameter or member 'work' not described in 'lpfc_idle_stat_delay_work' drivers/scsi/lpfc/lpfc_init.c:1817: warning: Function parameter or member 'en_rn_msg' not described in 'lpfc_sli4_port_sta_fn_reset' drivers/scsi/lpfc/lpfc_init.c:3033: warning: Function parameter or member 'mbx_action' not described in 'lpfc_block_mgmt_io' drivers/scsi/lpfc/lpfc_init.c:3481: warning: Function parameter or member 'mbx_action' not described in 'lpfc_offline_prep' drivers/scsi/lpfc/lpfc_init.c:4150: warning: Function parameter or member 'phba' not described in 'lpfc_new_io_buf' drivers/scsi/lpfc/lpfc_init.c:4150: warning: Function parameter or member 'num_to_alloc' not described in 'lpfc_new_io_buf' drivers/scsi/lpfc/lpfc_init.c:4150: warning: Excess function parameter 'vport' description in 'lpfc_new_io_buf' drivers/scsi/lpfc/lpfc_init.c:4150: warning: Excess function parameter 'num_to_allocate' description in 'lpfc_new_io_buf' drivers/scsi/lpfc/lpfc_init.c:4736: warning: Function parameter or member 't' not described in 'lpfc_sli4_fcf_redisc_wait_tmo' drivers/scsi/lpfc/lpfc_init.c:4736: warning: Excess function parameter 'ptr' description in 'lpfc_sli4_fcf_redisc_wait_tmo' drivers/scsi/lpfc/lpfc_init.c:5103: warning: Excess function parameter 'evt_code' description in 'lpfc_async_link_speed_to_read_top' drivers/scsi/lpfc/lpfc_init.c:5377: warning: Function parameter or member 'acqe_sli' not described in 'lpfc_sli4_async_sli_evt' drivers/scsi/lpfc/lpfc_init.c:5377: warning: Excess function parameter 'acqe_fc' description in 'lpfc_sli4_async_sli_evt' drivers/scsi/lpfc/lpfc_init.c:5634: warning: Function parameter or member 'phba' not described in 'lpfc_sli4_perform_all_vport_cvl' drivers/scsi/lpfc/lpfc_init.c:5634: warning: Excess function parameter 'vport' description in 'lpfc_sli4_perform_all_vport_cvl' drivers/scsi/lpfc/lpfc_init.c:5655: warning: Function parameter or member 'acqe_fip' not described in 'lpfc_sli4_async_fip_evt' drivers/scsi/lpfc/lpfc_init.c:5655: warning: Excess function parameter 'acqe_link' description in 'lpfc_sli4_async_fip_evt' drivers/scsi/lpfc/lpfc_init.c:5908: warning: Function parameter or member 'acqe_dcbx' not described in 'lpfc_sli4_async_dcbx_evt' drivers/scsi/lpfc/lpfc_init.c:5908: warning: Excess function parameter 'acqe_link' description in 'lpfc_sli4_async_dcbx_evt' drivers/scsi/lpfc/lpfc_init.c:5927: warning: Function parameter or member 'acqe_grp5' not described in 'lpfc_sli4_async_grp5_evt' drivers/scsi/lpfc/lpfc_init.c:5927: warning: Excess function parameter 'acqe_link' description in 'lpfc_sli4_async_grp5_evt' drivers/scsi/lpfc/lpfc_init.c:7279: warning: Function parameter or member 'iocb_count' not described in 'lpfc_init_iocb_list' drivers/scsi/lpfc/lpfc_init.c:8227: warning: Function parameter or member 'if_type' not described in 'lpfc_sli4_bar1_register_memmap' drivers/scsi/lpfc/lpfc_init.c:8414: warning: Excess function parameter 'phba' description in 'LINK_FLAGS_DEF' drivers/scsi/lpfc/lpfc_init.c:8414: warning: Excess function parameter 'rdconf' description in 'LINK_FLAGS_DEF' drivers/scsi/lpfc/lpfc_init.c:10734: warning: Function parameter or member 'cfg_mode' not described in 'lpfc_sli_enable_intr' drivers/scsi/lpfc/lpfc_init.c:11241: warning: Function parameter or member 'eqlist' not described in 'lpfc_cpuhp_get_eq' drivers/scsi/lpfc/lpfc_init.c:11726: warning: Function parameter or member 'cfg_mode' not described in 'lpfc_sli4_enable_intr' drivers/scsi/lpfc/lpfc_init.c:12997: warning: Excess function parameter 'ret' description in 'lpfc_write_firmware' drivers/scsi/lpfc/lpfc_init.c:13103: warning: Function parameter or member 'fw_upgrade' not described in 'lpfc_sli4_request_firmware_update' Link: https://lore.kernel.org/r/20200723122446.1329773-17-lee.jones@linaro.org Cc: James Smart <james.smart@broadcom.com> Cc: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-24scsi: lpfc: Use __printf() format notationLee Jones
Fixes the following W=1 kernel build warning(s): drivers/scsi/lpfc/lpfc_init.c: In function ‘lpfc_dbg_print’: drivers/scsi/lpfc/lpfc_init.c:14212:6: warning: function ‘lpfc_dbg_print’ might be a candidate for ‘gnu_printf’ format attribute [-Wsuggest-attribute=format] 14212 | sizeof(phba->dbg_log[idx].log), fmt, args); | ^~~~~~ Link: https://lore.kernel.org/r/20200723122446.1329773-16-lee.jones@linaro.org Cc: James Smart <james.smart@broadcom.com> Cc: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-24scsi: lpfc: Fix kerneldoc parameter formatting/misnaming/missing issuesLee Jones
Fixes the following W=1 kernel build warning(s): drivers/scsi/lpfc/lpfc_hbadisc.c:1209: warning: Function parameter or member 'phba' not described in 'lpfc_sli4_clear_fcf_rr_bmask' drivers/scsi/lpfc/lpfc_hbadisc.c:1309: warning: Function parameter or member 'sw_name' not described in 'lpfc_sw_name_match' drivers/scsi/lpfc/lpfc_hbadisc.c:1309: warning: Excess function parameter 'fab_name' description in 'lpfc_sw_name_match' drivers/scsi/lpfc/lpfc_hbadisc.c:1397: warning: Function parameter or member 'fcf_rec' not described in 'lpfc_copy_fcf_record' drivers/scsi/lpfc/lpfc_hbadisc.c:1397: warning: Excess function parameter 'fcf' description in 'lpfc_copy_fcf_record' drivers/scsi/lpfc/lpfc_hbadisc.c:1956: warning: Cannot understand lpfc_sli4_fcf_record_match - testing new FCF record for matching existing FCF on line 1956 - I thought it was a doc line drivers/scsi/lpfc/lpfc_hbadisc.c:2078: warning: Function parameter or member 'fcf_index' not described in 'lpfc_sli4_fcf_pri_list_del' drivers/scsi/lpfc/lpfc_hbadisc.c:2109: warning: Function parameter or member 'fcf_index' not described in 'lpfc_sli4_set_fcf_flogi_fail' drivers/scsi/lpfc/lpfc_hbadisc.c:2135: warning: Function parameter or member 'fcf_index' not described in 'lpfc_sli4_fcf_pri_list_add' drivers/scsi/lpfc/lpfc_hbadisc.c:2135: warning: Function parameter or member 'new_fcf_record' not described in 'lpfc_sli4_fcf_pri_list_add' Link: https://lore.kernel.org/r/20200723122446.1329773-3-lee.jones@linaro.org Cc: James Smart <james.smart@broadcom.com> Cc: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-24scsi: lpfc: Fix some function parameter descriptionsLee Jones
Fixes the following W=1 kernel build warning(s): drivers/scsi/lpfc/lpfc_els.c:3619: warning: Function parameter or member 't' not described in 'lpfc_els_retry_delay' drivers/scsi/lpfc/lpfc_els.c:3619: warning: Excess function parameter 'ptr' description in 'lpfc_els_retry_delay' drivers/scsi/lpfc/lpfc_els.c:4877: warning: Function parameter or member 'rejectError' not described in 'lpfc_els_rsp_reject' drivers/scsi/lpfc/lpfc_els.c:7900: warning: Function parameter or member 't' not described in 'lpfc_els_timeout' drivers/scsi/lpfc/lpfc_els.c:7900: warning: Excess function parameter 'ptr' description in 'lpfc_els_timeout' drivers/scsi/lpfc/lpfc_els.c:8272: warning: Function parameter or member 'payload' not described in 'lpfc_send_els_event' drivers/scsi/lpfc/lpfc_els.c:8272: warning: Excess function parameter 'cmd' description in 'lpfc_send_els_event' drivers/scsi/lpfc/lpfc_els.c:8355: warning: Function parameter or member 'tlv' not described in 'lpfc_els_rcv_fpin_li' drivers/scsi/lpfc/lpfc_els.c:8355: warning: Excess function parameter 'lnk_not' description in 'lpfc_els_rcv_fpin_li' drivers/scsi/lpfc/lpfc_els.c:9688: warning: Function parameter or member 't' not described in 'lpfc_fabric_block_timeout' drivers/scsi/lpfc/lpfc_els.c:9688: warning: Excess function parameter 'ptr' description in 'lpfc_fabric_block_timeout' Link: https://lore.kernel.org/r/20200723122446.1329773-2-lee.jones@linaro.org Cc: James Smart <james.smart@broadcom.com> Cc: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-24scsi: lpfc: Ensure variable has the same stipulations as code using itLee Jones
'pg_addr' is only used when CONFIG_X86 is defined. So only declare it if CONFIG_X86 is defined. Fixes the following W=1 kernel build warning(s): drivers/scsi/lpfc/lpfc_sli.c: In function ‘lpfc_wq_create’: drivers/scsi/lpfc/lpfc_sli.c:15813:16: warning: unused variable ‘pg_addr’ [-Wunused-variable] 15813 | unsigned long pg_addr; | ^~~~~~~ Link: https://lore.kernel.org/r/20200721164148.2617584-37-lee.jones@linaro.org Cc: James Smart <james.smart@broadcom.com> Cc: Dick Kennedy <dick.kennedy@broadcom.com> Cc: Sumit Semwal <sumit.semwal@linaro.org> Cc: "Christian König" <christian.koenig@amd.com> Cc: linux-media@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Cc: linaro-mm-sig@lists.linaro.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-24scsi: lpfc: Fix-up formatting/docrot where appropriateLee Jones
Other headers have been demoted as they are too far out of sync and ideally require effort from the authors. Fixes the following W=1 kernel build warning(s): drivers/scsi/lpfc/lpfc_ct.c:321: warning: Function parameter or member 'usr_flg' not described in 'lpfc_gen_req' drivers/scsi/lpfc/lpfc_ct.c:321: warning: Function parameter or member 'num_entry' not described in 'lpfc_gen_req' drivers/scsi/lpfc/lpfc_ct.c:321: warning: Function parameter or member 'tmo' not described in 'lpfc_gen_req' drivers/scsi/lpfc/lpfc_ct.c:321: warning: Function parameter or member 'retry' not described in 'lpfc_gen_req' drivers/scsi/lpfc/lpfc_ct.c:413: warning: Function parameter or member 'rsp_size' not described in 'lpfc_ct_cmd' drivers/scsi/lpfc/lpfc_ct.c:413: warning: Function parameter or member 'retry' not described in 'lpfc_ct_cmd' drivers/scsi/lpfc/lpfc_ct.c:3030: warning: Function parameter or member 'cmdcode' not described in 'lpfc_fdmi_cmd' drivers/scsi/lpfc/lpfc_ct.c:3030: warning: Function parameter or member 'new_mask' not described in 'lpfc_fdmi_cmd' drivers/scsi/lpfc/lpfc_ct.c:3272: warning: Function parameter or member 't' not described in 'lpfc_delayed_disc_tmo' Link: https://lore.kernel.org/r/20200721164148.2617584-31-lee.jones@linaro.org Cc: James Smart <james.smart@broadcom.com> Cc: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-24scsi: lpfc: Provide description for lpfc_mem_alloc()'s 'align' paramLee Jones
Fixes the following W=1 kernel build warning(s): drivers/scsi/lpfc/lpfc_mem.c:85: warning: Function parameter or member 'align' not described in 'lpfc_mem_alloc' Link: https://lore.kernel.org/r/20200721164148.2617584-29-lee.jones@linaro.org Cc: James Smart <james.smart@broadcom.com> Cc: Dick Kennedy <dick.kennedy@broadcom.com> Cc: Sumit Semwal <sumit.semwal@linaro.org> Cc: "Christian König" <christian.koenig@amd.com> Cc: linux-media@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Cc: linaro-mm-sig@lists.linaro.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-24scsi: lpfc: Fix-up around 120 documentation issuesLee Jones
Fixes the following W=1 kernel build warning(s): drivers/scsi/lpfc/lpfc_sli.c:257: warning: Function parameter or member 'mqe' not described in 'lpfc_sli4_mq_put' drivers/scsi/lpfc/lpfc_sli.c:257: warning: Excess function parameter 'wqe' description in 'lpfc_sli4_mq_put' drivers/scsi/lpfc/lpfc_sli.c:675: warning: Function parameter or member 'hq' not described in 'lpfc_sli4_rq_put' drivers/scsi/lpfc/lpfc_sli.c:675: warning: Function parameter or member 'dq' not described in 'lpfc_sli4_rq_put' drivers/scsi/lpfc/lpfc_sli.c:675: warning: Function parameter or member 'hrqe' not described in 'lpfc_sli4_rq_put' drivers/scsi/lpfc/lpfc_sli.c:675: warning: Function parameter or member 'drqe' not described in 'lpfc_sli4_rq_put' drivers/scsi/lpfc/lpfc_sli.c:675: warning: Excess function parameter 'q' description in 'lpfc_sli4_rq_put' drivers/scsi/lpfc/lpfc_sli.c:675: warning: Excess function parameter 'wqe' description in 'lpfc_sli4_rq_put' drivers/scsi/lpfc/lpfc_sli.c:738: warning: Function parameter or member 'hq' not described in 'lpfc_sli4_rq_release' drivers/scsi/lpfc/lpfc_sli.c:738: warning: Function parameter or member 'dq' not described in 'lpfc_sli4_rq_release' drivers/scsi/lpfc/lpfc_sli.c:738: warning: Excess function parameter 'q' description in 'lpfc_sli4_rq_release' drivers/scsi/lpfc/lpfc_sli.c:1021: warning: Function parameter or member 'xritag' not described in 'lpfc_test_rrq_active' drivers/scsi/lpfc/lpfc_sli.c:1132: warning: Function parameter or member 'piocbq' not described in '__lpfc_sli_get_els_sglq' drivers/scsi/lpfc/lpfc_sli.c:1132: warning: Excess function parameter 'piocb' description in '__lpfc_sli_get_els_sglq' drivers/scsi/lpfc/lpfc_sli.c:1207: warning: Function parameter or member 'piocbq' not described in '__lpfc_sli_get_nvmet_sglq' drivers/scsi/lpfc/lpfc_sli.c:1207: warning: Excess function parameter 'piocb' description in '__lpfc_sli_get_nvmet_sglq' drivers/scsi/lpfc/lpfc_sli.c:2243: warning: Function parameter or member 'rb_list' not described in 'lpfc_sli_hbqbuf_get' drivers/scsi/lpfc/lpfc_sli.c:2243: warning: Excess function parameter 'phba' description in 'lpfc_sli_hbqbuf_get' drivers/scsi/lpfc/lpfc_sli.c:2243: warning: Excess function parameter 'hbqno' description in 'lpfc_sli_hbqbuf_get' drivers/scsi/lpfc/lpfc_sli.c:2262: warning: Function parameter or member 'hrq' not described in 'lpfc_sli_rqbuf_get' drivers/scsi/lpfc/lpfc_sli.c:2262: warning: Excess function parameter 'hbqno' description in 'lpfc_sli_rqbuf_get' drivers/scsi/lpfc/lpfc_sli.c:3429: warning: Function parameter or member 't' not described in 'lpfc_poll_eratt' drivers/scsi/lpfc/lpfc_sli.c:3429: warning: Excess function parameter 'ptr' description in 'lpfc_poll_eratt' drivers/scsi/lpfc/lpfc_sli.c:4115: warning: Excess function parameter 'pring' description in 'lpfc_sli_abort_fcp_rings' drivers/scsi/lpfc/lpfc_sli.c:5331: warning: Excess function parameter 'mboxq' description in 'lpfc_sli4_read_fcoe_params' drivers/scsi/lpfc/lpfc_sli.c:5879: warning: Function parameter or member 'extnt_cnt' not described in 'lpfc_sli4_cfg_post_extnts' drivers/scsi/lpfc/lpfc_sli.c:5879: warning: Function parameter or member 'type' not described in 'lpfc_sli4_cfg_post_extnts' drivers/scsi/lpfc/lpfc_sli.c:5879: warning: Function parameter or member 'emb' not described in 'lpfc_sli4_cfg_post_extnts' drivers/scsi/lpfc/lpfc_sli.c:5879: warning: Function parameter or member 'mbox' not described in 'lpfc_sli4_cfg_post_extnts' drivers/scsi/lpfc/lpfc_sli.c:6459: warning: Function parameter or member 'pmb' not described in 'lpfc_sli4_ras_mbox_cmpl' drivers/scsi/lpfc/lpfc_sli.c:6459: warning: Excess function parameter 'pmboxq' description in 'lpfc_sli4_ras_mbox_cmpl' drivers/scsi/lpfc/lpfc_sli.c:6912: warning: Function parameter or member 'extnt_cnt' not described in 'lpfc_sli4_get_allocated_extnts' drivers/scsi/lpfc/lpfc_sli.c:6912: warning: Excess function parameter 'extnt_count' description in 'lpfc_sli4_get_allocated_extnts' drivers/scsi/lpfc/lpfc_sli.c:7064: warning: Excess function parameter 'pring' description in 'lpfc_sli4_repost_sgl_list' drivers/scsi/lpfc/lpfc_sli.c:7312: warning: Function parameter or member 'phba' not described in 'lpfc_init_idle_stat_hb' drivers/scsi/lpfc/lpfc_sli.c:8022: warning: Function parameter or member 't' not described in 'lpfc_mbox_timeout' drivers/scsi/lpfc/lpfc_sli.c:8022: warning: Excess function parameter 'ptr' description in 'lpfc_mbox_timeout' drivers/scsi/lpfc/lpfc_sli.c:8902: warning: Function parameter or member 'mboxq' not described in 'lpfc_sli_issue_mbox_s4' drivers/scsi/lpfc/lpfc_sli.c:8902: warning: Excess function parameter 'pmbox' description in 'lpfc_sli_issue_mbox_s4' drivers/scsi/lpfc/lpfc_sli.c:9413: warning: Function parameter or member 'piocbq' not described in 'lpfc_sli4_bpl2sgl' drivers/scsi/lpfc/lpfc_sli.c:9413: warning: Excess function parameter 'piocb' description in 'lpfc_sli4_bpl2sgl' drivers/scsi/lpfc/lpfc_sli.c:9518: warning: Function parameter or member 'iocbq' not described in 'lpfc_sli4_iocb2wqe' drivers/scsi/lpfc/lpfc_sli.c:9518: warning: Excess function parameter 'piocb' description in 'lpfc_sli4_iocb2wqe' drivers/scsi/lpfc/lpfc_sli.c:10212: warning: Function parameter or member 'phba' not described in '__lpfc_sli_issue_iocb' drivers/scsi/lpfc/lpfc_sli.c:10212: warning: Function parameter or member 'ring_number' not described in '__lpfc_sli_issue_iocb' drivers/scsi/lpfc/lpfc_sli.c:10212: warning: Function parameter or member 'piocb' not described in '__lpfc_sli_issue_iocb' drivers/scsi/lpfc/lpfc_sli.c:10212: warning: Function parameter or member 'flag' not described in '__lpfc_sli_issue_iocb' drivers/scsi/lpfc/lpfc_sli.c:10300: warning: Function parameter or member 'ring_number' not described in 'lpfc_sli_issue_iocb' drivers/scsi/lpfc/lpfc_sli.c:10300: warning: Excess function parameter 'pring' description in 'lpfc_sli_issue_iocb' drivers/scsi/lpfc/lpfc_sli.c:11807: warning: Function parameter or member 'cmd' not described in 'lpfc_sli_abort_taskmgmt' drivers/scsi/lpfc/lpfc_sli.c:11807: warning: Excess function parameter 'taskmgmt_cmd' description in 'lpfc_sli_abort_taskmgmt' drivers/scsi/lpfc/lpfc_sli.c:12067: warning: Function parameter or member 'ring_number' not described in 'lpfc_sli_issue_iocb_wait' drivers/scsi/lpfc/lpfc_sli.c:12067: warning: Excess function parameter 'pring' description in 'lpfc_sli_issue_iocb_wait' drivers/scsi/lpfc/lpfc_sli.c:12262: warning: Function parameter or member 'mbx_action' not described in 'lpfc_sli_mbox_sys_shutdown' drivers/scsi/lpfc/lpfc_sli.c:13219: warning: Function parameter or member 'irspiocbq' not described in 'lpfc_sli4_els_wcqe_to_rspiocbq' drivers/scsi/lpfc/lpfc_sli.c:13219: warning: Excess function parameter 'wcqe' description in 'lpfc_sli4_els_wcqe_to_rspiocbq' drivers/scsi/lpfc/lpfc_sli.c:13285: warning: Function parameter or member 'mcqe' not described in 'lpfc_sli4_sp_handle_async_event' drivers/scsi/lpfc/lpfc_sli.c:13285: warning: Excess function parameter 'cqe' description in 'lpfc_sli4_sp_handle_async_event' drivers/scsi/lpfc/lpfc_sli.c:13318: warning: Function parameter or member 'mcqe' not described in 'lpfc_sli4_sp_handle_mbox_event' drivers/scsi/lpfc/lpfc_sli.c:13318: warning: Excess function parameter 'cqe' description in 'lpfc_sli4_sp_handle_mbox_event' drivers/scsi/lpfc/lpfc_sli.c:13441: warning: Function parameter or member 'cq' not described in 'lpfc_sli4_sp_handle_mcqe' drivers/scsi/lpfc/lpfc_sli.c:13768: warning: Function parameter or member 'speq' not described in 'lpfc_sli4_sp_handle_eqe' drivers/scsi/lpfc/lpfc_sli.c:14126: warning: Function parameter or member 'cq' not described in 'lpfc_sli4_nvmet_handle_rcqe' drivers/scsi/lpfc/lpfc_sli.c:14235: warning: Function parameter or member 'cqe' not described in 'lpfc_sli4_fp_handle_cqe' drivers/scsi/lpfc/lpfc_sli.c:14235: warning: Excess function parameter 'eqe' description in 'lpfc_sli4_fp_handle_cqe' drivers/scsi/lpfc/lpfc_sli.c:14336: warning: Function parameter or member 'eq' not described in 'lpfc_sli4_hba_handle_eqe' drivers/scsi/lpfc/lpfc_sli.c:14808: warning: Function parameter or member 'entry_count' not described in 'lpfc_sli4_queue_alloc' drivers/scsi/lpfc/lpfc_sli.c:15185: warning: Function parameter or member 'type' not described in 'lpfc_cq_create' drivers/scsi/lpfc/lpfc_sli.c:15185: warning: Function parameter or member 'subtype' not described in 'lpfc_cq_create' drivers/scsi/lpfc/lpfc_sli.c:15333: warning: Function parameter or member 'type' not described in 'lpfc_cq_create_set' drivers/scsi/lpfc/lpfc_sli.c:15333: warning: Function parameter or member 'subtype' not described in 'lpfc_cq_create_set' drivers/scsi/lpfc/lpfc_sli.c:16063: warning: Function parameter or member 'subtype' not described in 'lpfc_rq_create' drivers/scsi/lpfc/lpfc_sli.c:16353: warning: Function parameter or member 'subtype' not described in 'lpfc_mrq_create' drivers/scsi/lpfc/lpfc_sli.c:16533: warning: Function parameter or member 'phba' not described in 'lpfc_eq_destroy' drivers/scsi/lpfc/lpfc_sli.c:16590: warning: Function parameter or member 'phba' not described in 'lpfc_cq_destroy' drivers/scsi/lpfc/lpfc_sli.c:16644: warning: Function parameter or member 'phba' not described in 'lpfc_mq_destroy' drivers/scsi/lpfc/lpfc_sli.c:16644: warning: Function parameter or member 'mq' not described in 'lpfc_mq_destroy' drivers/scsi/lpfc/lpfc_sli.c:16644: warning: Excess function parameter 'qm' description in 'lpfc_mq_destroy' drivers/scsi/lpfc/lpfc_sli.c:16698: warning: Function parameter or member 'phba' not described in 'lpfc_wq_destroy' drivers/scsi/lpfc/lpfc_sli.c:16754: warning: Function parameter or member 'phba' not described in 'lpfc_rq_destroy' drivers/scsi/lpfc/lpfc_sli.c:16754: warning: Function parameter or member 'hrq' not described in 'lpfc_rq_destroy' drivers/scsi/lpfc/lpfc_sli.c:16754: warning: Function parameter or member 'drq' not described in 'lpfc_rq_destroy' drivers/scsi/lpfc/lpfc_sli.c:16754: warning: Excess function parameter 'rq' description in 'lpfc_rq_destroy' drivers/scsi/lpfc/lpfc_sli.c:16940: warning: Function parameter or member 'xri' not described in '__lpfc_sli4_free_xri' drivers/scsi/lpfc/lpfc_sli.c:16955: warning: Function parameter or member 'xri' not described in 'lpfc_sli4_free_xri' drivers/scsi/lpfc/lpfc_sli.c:17002: warning: Function parameter or member 'post_cnt' not described in 'lpfc_sli4_post_sgl_list' drivers/scsi/lpfc/lpfc_sli.c:17002: warning: Excess function parameter 'count' description in 'lpfc_sli4_post_sgl_list' drivers/scsi/lpfc/lpfc_sli.c:17221: warning: Function parameter or member 'sb_count' not described in 'lpfc_sli4_post_io_sgl_list' drivers/scsi/lpfc/lpfc_sli.c:17451: warning: Function parameter or member 'did' not described in 'lpfc_fc_frame_to_vport' drivers/scsi/lpfc/lpfc_sli.c:17590: warning: Function parameter or member 'vport' not described in 'lpfc_fc_frame_add' drivers/scsi/lpfc/lpfc_sli.c:17817: warning: Function parameter or member 'vport' not described in 'lpfc_sli4_seq_abort_rsp' drivers/scsi/lpfc/lpfc_sli.c:17817: warning: Function parameter or member 'aborted' not described in 'lpfc_sli4_seq_abort_rsp' drivers/scsi/lpfc/lpfc_sli.c:17817: warning: Excess function parameter 'phba' description in 'lpfc_sli4_seq_abort_rsp' drivers/scsi/lpfc/lpfc_sli.c:18060: warning: Function parameter or member 'seq_dmabuf' not described in 'lpfc_prep_seq' drivers/scsi/lpfc/lpfc_sli.c:18060: warning: Excess function parameter 'dmabuf' description in 'lpfc_prep_seq' drivers/scsi/lpfc/lpfc_sli.c:18332: warning: Function parameter or member 'dmabuf' not described in 'lpfc_sli4_handle_received_buffer' drivers/scsi/lpfc/lpfc_sli.c:18655: warning: Function parameter or member 'rpi' not described in '__lpfc_sli4_free_rpi' drivers/scsi/lpfc/lpfc_sli.c:18683: warning: Function parameter or member 'rpi' not described in 'lpfc_sli4_free_rpi' drivers/scsi/lpfc/lpfc_sli.c:18714: warning: Function parameter or member 'ndlp' not described in 'lpfc_sli4_resume_rpi' drivers/scsi/lpfc/lpfc_sli.c:18714: warning: Function parameter or member 'cmpl' not described in 'lpfc_sli4_resume_rpi' drivers/scsi/lpfc/lpfc_sli.c:18714: warning: Function parameter or member 'arg' not described in 'lpfc_sli4_resume_rpi' drivers/scsi/lpfc/lpfc_sli.c:18714: warning: Excess function parameter 'phba' description in 'lpfc_sli4_resume_rpi' drivers/scsi/lpfc/lpfc_sli.c:19103: warning: Function parameter or member 'phba' not described in 'lpfc_check_next_fcf_pri_level' drivers/scsi/lpfc/lpfc_sli.c:19266: warning: Function parameter or member 'fcf_index' not described in 'lpfc_sli4_fcf_rr_index_set' drivers/scsi/lpfc/lpfc_sli.c:19295: warning: Function parameter or member 'fcf_index' not described in 'lpfc_sli4_fcf_rr_index_clear' drivers/scsi/lpfc/lpfc_sli.c:19331: warning: Function parameter or member 'mbox' not described in 'lpfc_mbx_cmpl_redisc_fcf_table' drivers/scsi/lpfc/lpfc_sli.c:20027: warning: Function parameter or member 'pwqeq' not described in 'lpfc_wqe_bpl2sgl' drivers/scsi/lpfc/lpfc_sli.c:20027: warning: Excess function parameter 'pwqe' description in 'lpfc_wqe_bpl2sgl' drivers/scsi/lpfc/lpfc_sli.c:20141: warning: Function parameter or member 'qp' not described in 'lpfc_sli4_issue_wqe' drivers/scsi/lpfc/lpfc_sli.c:20141: warning: Excess function parameter 'ring_number' description in 'lpfc_sli4_issue_wqe' drivers/scsi/lpfc/lpfc_sli.c:20434: warning: Function parameter or member 'qp' not described in '_lpfc_move_xri_pbl_to_pvt' drivers/scsi/lpfc/lpfc_sli.c:20552: warning: Function parameter or member 'hwqid' not described in 'lpfc_keep_pvt_pool_above_lowwm' drivers/scsi/lpfc/lpfc_sli.c:20552: warning: Excess function parameter 'qp' description in 'lpfc_keep_pvt_pool_above_lowwm' drivers/scsi/lpfc/lpfc_sli.c:20682: warning: Function parameter or member 'qp' not described in 'lpfc_get_io_buf_from_private_pool' Link: https://lore.kernel.org/r/20200721164148.2617584-24-lee.jones@linaro.org Cc: James Smart <james.smart@broadcom.com> Cc: Dick Kennedy <dick.kennedy@broadcom.com> Cc: Sumit Semwal <sumit.semwal@linaro.org> Cc: "Christian König" <christian.koenig@amd.com> Cc: linux-media@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Cc: linaro-mm-sig@lists.linaro.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-24scsi: lpfc: Remove unused variable 'pg_addr'Lee Jones
Fixes the following W=1 kernel build warning(s): drivers/scsi/lpfc/lpfc_sli.c: In function ‘lpfc_wq_create’: drivers/scsi/lpfc/lpfc_sli.c:15810:16: warning: variable ‘pg_addr’ set but not used [-Wunused-but-set-variable] 15810 | unsigned long pg_addr; | ^~~~~~~ Link: https://lore.kernel.org/r/20200721164148.2617584-21-lee.jones@linaro.org Cc: James Smart <james.smart@broadcom.com> Cc: Dick Kennedy <dick.kennedy@broadcom.com> Cc: Sumit Semwal <sumit.semwal@linaro.org> Cc: "Christian König" <christian.koenig@amd.com> Cc: linux-media@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Cc: linaro-mm-sig@lists.linaro.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-15scsi: lpfc: Correct some pretty obvious misdocumentationLee Jones
Either due to API slippage before the driver was mainlined or copy/paste errors. Fixes the following W=1 kernel build warning(s): drivers/scsi/lpfc/lpfc_nvme.c:254: warning: Function parameter or member 'pnvme_lport' not described in 'lpfc_nvme_create_queue' drivers/scsi/lpfc/lpfc_nvme.c:254: warning: Function parameter or member 'qsize' not described in 'lpfc_nvme_create_queue' drivers/scsi/lpfc/lpfc_nvme.c:254: warning: Excess function parameter 'lpfc_pnvme' description in 'lpfc_nvme_create_queue' drivers/scsi/lpfc/lpfc_nvme.c:311: warning: Function parameter or member 'pnvme_lport' not described in 'lpfc_nvme_delete_queue' drivers/scsi/lpfc/lpfc_nvme.c:311: warning: Excess function parameter 'lpfc_pnvme' description in 'lpfc_nvme_delete_queue' drivers/scsi/lpfc/lpfc_nvme.c:689: warning: Function parameter or member 'gen_req_cmp' not described in '__lpfc_nvme_ls_req' drivers/scsi/lpfc/lpfc_nvme.c:801: warning: Function parameter or member 'pnvme_lport' not described in 'lpfc_nvme_ls_req' drivers/scsi/lpfc/lpfc_nvme.c:801: warning: Function parameter or member 'pnvme_rport' not described in 'lpfc_nvme_ls_req' drivers/scsi/lpfc/lpfc_nvme.c:801: warning: Function parameter or member 'pnvme_lsreq' not described in 'lpfc_nvme_ls_req' drivers/scsi/lpfc/lpfc_nvme.c:801: warning: Excess function parameter 'lpfc_nvme_lport' description in 'lpfc_nvme_ls_req' drivers/scsi/lpfc/lpfc_nvme.c:801: warning: Excess function parameter 'lpfc_nvme_rport' description in 'lpfc_nvme_ls_req' drivers/scsi/lpfc/lpfc_nvme.c:937: warning: Function parameter or member 'pnvme_lport' not described in 'lpfc_nvme_ls_abort' drivers/scsi/lpfc/lpfc_nvme.c:937: warning: Function parameter or member 'pnvme_rport' not described in 'lpfc_nvme_ls_abort' drivers/scsi/lpfc/lpfc_nvme.c:937: warning: Function parameter or member 'pnvme_lsreq' not described in 'lpfc_nvme_ls_abort' drivers/scsi/lpfc/lpfc_nvme.c:937: warning: Excess function parameter 'lpfc_nvme_lport' description in 'lpfc_nvme_ls_abort' drivers/scsi/lpfc/lpfc_nvme.c:937: warning: Excess function parameter 'lpfc_nvme_rport' description in 'lpfc_nvme_ls_abort' drivers/scsi/lpfc/lpfc_nvme.c:1075: warning: Function parameter or member 'phba' not described in 'lpfc_nvme_io_cmd_wqe_cmpl' drivers/scsi/lpfc/lpfc_nvme.c:1075: warning: Function parameter or member 'pwqeIn' not described in 'lpfc_nvme_io_cmd_wqe_cmpl' drivers/scsi/lpfc/lpfc_nvme.c:1075: warning: Function parameter or member 'wcqe' not described in 'lpfc_nvme_io_cmd_wqe_cmpl' drivers/scsi/lpfc/lpfc_nvme.c:1075: warning: Excess function parameter 'lpfc_pnvme' description in 'lpfc_nvme_io_cmd_wqe_cmpl' drivers/scsi/lpfc/lpfc_nvme.c:1075: warning: Excess function parameter 'lpfc_nvme_lport' description in 'lpfc_nvme_io_cmd_wqe_cmpl' drivers/scsi/lpfc/lpfc_nvme.c:1075: warning: Excess function parameter 'lpfc_nvme_rport' description in 'lpfc_nvme_io_cmd_wqe_cmpl' drivers/scsi/lpfc/lpfc_nvme.c:1313: warning: Function parameter or member 'vport' not described in 'lpfc_nvme_prep_io_cmd' drivers/scsi/lpfc/lpfc_nvme.c:1313: warning: Function parameter or member 'lpfc_ncmd' not described in 'lpfc_nvme_prep_io_cmd' drivers/scsi/lpfc/lpfc_nvme.c:1313: warning: Function parameter or member 'pnode' not described in 'lpfc_nvme_prep_io_cmd' drivers/scsi/lpfc/lpfc_nvme.c:1313: warning: Function parameter or member 'cstat' not described in 'lpfc_nvme_prep_io_cmd' drivers/scsi/lpfc/lpfc_nvme.c:1313: warning: Excess function parameter 'lpfc_pnvme' description in 'lpfc_nvme_prep_io_cmd' drivers/scsi/lpfc/lpfc_nvme.c:1313: warning: Excess function parameter 'lpfc_nvme_lport' description in 'lpfc_nvme_prep_io_cmd' drivers/scsi/lpfc/lpfc_nvme.c:1313: warning: Excess function parameter 'lpfc_nvme_rport' description in 'lpfc_nvme_prep_io_cmd' drivers/scsi/lpfc/lpfc_nvme.c:1313: warning: Excess function parameter 'lpfc_nvme_fcreq' description in 'lpfc_nvme_prep_io_cmd' drivers/scsi/lpfc/lpfc_nvme.c:1313: warning: Excess function parameter 'hw_queue_handle' description in 'lpfc_nvme_prep_io_cmd' drivers/scsi/lpfc/lpfc_nvme.c:1420: warning: Function parameter or member 'vport' not described in 'lpfc_nvme_prep_io_dma' drivers/scsi/lpfc/lpfc_nvme.c:1420: warning: Function parameter or member 'lpfc_ncmd' not described in 'lpfc_nvme_prep_io_dma' drivers/scsi/lpfc/lpfc_nvme.c:1420: warning: Excess function parameter 'lpfc_pnvme' description in 'lpfc_nvme_prep_io_dma' drivers/scsi/lpfc/lpfc_nvme.c:1420: warning: Excess function parameter 'lpfc_nvme_lport' description in 'lpfc_nvme_prep_io_dma' drivers/scsi/lpfc/lpfc_nvme.c:1420: warning: Excess function parameter 'lpfc_nvme_rport' description in 'lpfc_nvme_prep_io_dma' drivers/scsi/lpfc/lpfc_nvme.c:1420: warning: Excess function parameter 'lpfc_nvme_fcreq' description in 'lpfc_nvme_prep_io_dma' drivers/scsi/lpfc/lpfc_nvme.c:1420: warning: Excess function parameter 'hw_queue_handle' description in 'lpfc_nvme_prep_io_dma' drivers/scsi/lpfc/lpfc_nvme.c:1598: warning: bad line: indicated in @lpfc_nvme_rport. drivers/scsi/lpfc/lpfc_nvme.c:1609: warning: Function parameter or member 'pnvme_lport' not described in 'lpfc_nvme_fcp_io_submit' drivers/scsi/lpfc/lpfc_nvme.c:1609: warning: Function parameter or member 'pnvme_rport' not described in 'lpfc_nvme_fcp_io_submit' drivers/scsi/lpfc/lpfc_nvme.c:1609: warning: Function parameter or member 'pnvme_fcreq' not described in 'lpfc_nvme_fcp_io_submit' drivers/scsi/lpfc/lpfc_nvme.c:1609: warning: Excess function parameter 'lpfc_pnvme' description in 'lpfc_nvme_fcp_io_submit' drivers/scsi/lpfc/lpfc_nvme.c:1609: warning: Excess function parameter 'lpfc_nvme_lport' description in 'lpfc_nvme_fcp_io_submit' drivers/scsi/lpfc/lpfc_nvme.c:1609: warning: Excess function parameter 'lpfc_nvme_rport' description in 'lpfc_nvme_fcp_io_submit' drivers/scsi/lpfc/lpfc_nvme.c:1609: warning: Excess function parameter 'lpfc_nvme_fcreq' description in 'lpfc_nvme_fcp_io_submit' drivers/scsi/lpfc/lpfc_nvme.c:1856: warning: Function parameter or member 'abts_cmpl' not described in 'lpfc_nvme_abort_fcreq_cmpl' drivers/scsi/lpfc/lpfc_nvme.c:1856: warning: Excess function parameter 'rspiocb' description in 'lpfc_nvme_abort_fcreq_cmpl' drivers/scsi/lpfc/lpfc_nvme.c:1892: warning: Function parameter or member 'pnvme_lport' not described in 'lpfc_nvme_fcp_abort' drivers/scsi/lpfc/lpfc_nvme.c:1892: warning: Function parameter or member 'pnvme_rport' not described in 'lpfc_nvme_fcp_abort' drivers/scsi/lpfc/lpfc_nvme.c:1892: warning: Function parameter or member 'pnvme_fcreq' not described in 'lpfc_nvme_fcp_abort' drivers/scsi/lpfc/lpfc_nvme.c:1892: warning: Excess function parameter 'lpfc_pnvme' description in 'lpfc_nvme_fcp_abort' drivers/scsi/lpfc/lpfc_nvme.c:1892: warning: Excess function parameter 'lpfc_nvme_lport' description in 'lpfc_nvme_fcp_abort' drivers/scsi/lpfc/lpfc_nvme.c:1892: warning: Excess function parameter 'lpfc_nvme_rport' description in 'lpfc_nvme_fcp_abort' drivers/scsi/lpfc/lpfc_nvme.c:1892: warning: Excess function parameter 'lpfc_nvme_fcreq' description in 'lpfc_nvme_fcp_abort' drivers/scsi/lpfc/lpfc_nvme.c:2093: warning: Function parameter or member 'ndlp' not described in 'lpfc_get_nvme_buf' drivers/scsi/lpfc/lpfc_nvme.c:2093: warning: Function parameter or member 'idx' not described in 'lpfc_get_nvme_buf' drivers/scsi/lpfc/lpfc_nvme.c:2093: warning: Function parameter or member 'expedite' not described in 'lpfc_get_nvme_buf' drivers/scsi/lpfc/lpfc_nvme.c:2197: warning: Function parameter or member 'vport' not described in 'lpfc_nvme_create_localport' drivers/scsi/lpfc/lpfc_nvme.c:2330: warning: Function parameter or member 'vport' not described in 'lpfc_nvme_destroy_localport' drivers/scsi/lpfc/lpfc_nvme.c:2330: warning: Excess function parameter 'pnvme' description in 'lpfc_nvme_destroy_localport' drivers/scsi/lpfc/lpfc_nvme.c:2543: warning: Function parameter or member 'vport' not described in 'lpfc_nvme_rescan_port' drivers/scsi/lpfc/lpfc_nvme.c:2543: warning: Function parameter or member 'ndlp' not described in 'lpfc_nvme_rescan_port' Link: https://lore.kernel.org/r/20200713080001.128044-21-lee.jones@linaro.org Cc: James Smart <james.smart@broadcom.com> Cc: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-15scsi: lpfc: NVMe remote port devloss_tmo from llddJames Smart
nvme-fc allows the driver to specify a default devloss_tmo value when registering the remote port. The lpfc driver is currently not doing so, although it is implementing a driver internal node loss value of 30s which also is used on the SCSI FC remote port. As no devloss_tmo is set, the nvme-fc transport defaults to 60s. So there are competing timers. Additionally, due to the competing timers, it is possible the NVMe rport is removed but the SCSI rport remains. It is possible that the SCSI FC rport, which was registered for the NVMe port even if it doesn't utilize the SCSI protocol, had been tuned to not match either the 60s (nvme-fc default) or 30s (lldd default), it gets out of whack. The lldd will defer to the SCSI FC rport as long as the SCSI FC rport has not had its devloss_tmo expire. Correct the situation by specifying a default devloss_tmo to the nvme-fc transport when registering the rport. Take the value from the SCSI FC rport if it exists, otherwise use the driver default. Link: https://lore.kernel.org/r/20200714211412.11773-1-jsmart2021@gmail.com Tested-by: Martin George <Martin.George@netapp.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-15scsi: lpfc: Quieten some printksAnton Blanchard
On a big box the lpfc driver emits a few thousand "Set Affinity" lines to the console. Reduce the priority of these from KERN_ERR to KERN_INFO, and also fix a few printks that had no log level. Link: https://lore.kernel.org/r/20200713083908.1104927-1-anton@ozlabs.org Reviewed-by: James Smart <james.smart@broadcom.com> Signed-off-by: Anton Blanchard <anton@ozlabs.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-08scsi: lpfc: Fix less-than-zero comparison of unsigned valueDick Kennedy
The expression start_idx - dbg_cnt is evaluated using unsigned int arthithmetic (since these variables are unsigned ints) and hence can never be less than zero, so the less than comparison is never true. Rewrite the expression to check for start_idx being less than dbg_cnt. After the logic was corrected, temp_idx wasn't working correctly. So fix it as well. Link: https://lore.kernel.org/r/20200706204246.130416-1-jsmart2021@gmail.com Fixes: 372c187b8a70 ("scsi: lpfc: Add an internal trace log buffer") CC: Colin Ian King <colin.king@canonical.com> Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Addresses-Coverity: ("Unsigned compared against 0")
2020-07-08scsi: lpfc: Fix interrupt assignments when multiple vectors are supported on ↵Dick Kennedy
same CPU With certain platforms its possible pci_alloc_irq_vectors() may affinitize irq vectors to multiple (all?) CPUs. The driver is currently assuming exclusivity and vectors being doled out to different CPUs and is assigning primary ownership of each vector to the first CPU in the mask. The code doesn't bother to check if the CPU already owns a vector and will unconditionally overwrite the CPU to vector mapping. This causes the relationships between eq's and cq's to get confused and gets worse when CPUs start to offline. The net results are interrupts are skipped resulting in mailbox timeouts and there are oopses in CPU offling flows. Fix this changing up the primary vector assignment. Now assign the eq to a CPU only if it is the CPU in the mask that does not have a prior assignment. And once the primary ownership is assigned, break from the loop. For CPUs that may have been set before but not the primary owner, the lpfc_cpu_affinity_check() routine will balance the CPU to eq assignment. Link: https://lore.kernel.org/r/20200706204230.130363-1-jsmart2021@gmail.com Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-08scsi: lpfc: Fix inconsistent indentingColin Ian King
Fix smatch warning: drivers/scsi/lpfc/lpfc_sli.c:15156 lpfc_cq_poll_hdler() warn: inconsistent indenting Link: https://lore.kernel.org/r/20200707150018.823350-1-colin.king@canonical.com Reviewed-by: James Smart <james.smart@broadcom.com> Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-02scsi: lpfc: Update lpfc version to 12.8.0.2Dick Kennedy
Update lpfc version to 12.8.0.2 Link: https://lore.kernel.org/r/20200630215001.70793-15-jsmart2021@gmail.com Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-02scsi: lpfc: Add an internal trace log bufferDick Kennedy
The current logging methods typically end up requesting a reproduction with a different logging level set to figure out what happened. This was mainly by design to not clutter the kernel log messages with things that were typically not interesting and the messages themselves could cause other issues. When looking to make a better system, it was seen that in many cases when more data was wanted was when another message, usually at KERN_ERR level, was logged. And in most cases, what the additional logging that was then enabled was typically. Most of these areas fell into the discovery machine. Based on this summary, the following design has been put in place: The driver will maintain an internal log (256 elements of 256 bytes). The "additional logging" messages that are usually enabled in a reproduction will be changed to now log all the time to the internal log. A new logging level is defined - LOG_TRACE_EVENT. When this level is set (it is not by default) and a message marked as KERN_ERR is logged, all the messages in the internal log will be dumped to the kernel log before the KERN_ERR message is logged. There is a timestamp on each message added to the internal log. However, this timestamp is not converted to wall time when logged. The value of the timestamp is solely to give a crude time reference for the messages. Link: https://lore.kernel.org/r/20200630215001.70793-14-jsmart2021@gmail.com Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-02scsi: lpfc: Add blk_io_poll support for latency improvmentDick Kennedy
Although the existing implementation is very good at high I/O load, on tests involving light load, especially on only a few hardware queues, latency was a little higher than it can be due to using workqueue scheduling. Other tasks in the system can delay handling. Change the lower level to use irq_poll by default which uses a softirq for I/O completion. This gives better latency as variance in when the cq is processed is reduced over the workqueue interface. However, as high load is better served by not being in softirq when the CPU is loaded, work queues are still used under high I/O load. Link: https://lore.kernel.org/r/20200630215001.70793-13-jsmart2021@gmail.com Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-02scsi: lpfc: Add support to display if adapter dumps are availableDick Kennedy
Currently, if there has been an issue whereby an adapter dump was taken, there is nothing displayed to hint that it is present. Utilities must be run and they must query for the status in order to then download the dump. Add a message to the driver to query dump image presence when initializing the SLI Port. Link: https://lore.kernel.org/r/20200630215001.70793-12-jsmart2021@gmail.com Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-02scsi: lpfc: Allow applications to issue Common Set Features mailbox commandDick Kennedy
Currently the driver validates command codes received from the application. COMMON_SET_FEATURES is not currently being approved. Add definition of the missing command and allow it to be issued by applications. Link: https://lore.kernel.org/r/20200630215001.70793-11-jsmart2021@gmail.com Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-02scsi: lpfc: Fix language in 0373 message to reflect non-error messageDick Kennedy
Change vocabulary of 0373 log msg from "error" to "cmpl" The current language of the 0373 message contains the word "error" which caused a number of customers to inquire about the "error" and if it should be a concern. It isn't an error, it's simply an io completion status. Revise the message to replace the word "error" with "cmpl" for completion. Link: https://lore.kernel.org/r/20200630215001.70793-10-jsmart2021@gmail.com Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-02scsi: lpfc: Fix kdump hang on PPCDick Kennedy
When the kdump kernel shuts down lpfc calls flush_work_queue on an interrupt to schedule the cq handler. When there is only one CPU active on the kdump kernel, it is possible for the work_on to get scheduled on a non-active CPU causing it to never be scheduled. When in the kdump environment, per-CPU affinity of cq's to cpus is not necessary. In those cases, use a general queue_work rather than a queue_work_on(). Link: https://lore.kernel.org/r/20200630215001.70793-9-jsmart2021@gmail.com Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-02scsi: lpfc: Fix shost refcount mismatch when deleting vportDick Kennedy
When vports are deleted, it is observed that there is memory/kthread leakage as the vport isn't fully being released. There is a shost reference taken in scsi_add_host_dma that is not released during scsi_remove_host. It was noticed that other drivers resolve this by doing a scsi_host_put after calling scsi_remove_host. The vport_delete routine is taking two references one that corresponds to an access to the scsi_host in the vport_delete routine and another that is released after the adapter mailbox command completes that destroys the VPI that corresponds to the vport. Remove one of the references taken such that the second reference that is put will complete the missing scsi_add_host_dma reference and the shost will be terminated. Link: https://lore.kernel.org/r/20200630215001.70793-8-jsmart2021@gmail.com Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-02scsi: lpfc: Fix stack trace seen while setting rrq activeDick Kennedy
Call traces have been observed running different tests that involve aborts and setting the rrq active flag. The lpfc_set_rrq_active routine is doing a mempool_alloc under the soft_irq processing level. When the mempool needs to get a new buffer from the free pool and has to wait for memory to become free it will check the flags passed in on the alloc and dump the stack if the thread is running in interrupt context. Replace the GFP_KERNEL flag with GFP_ATOMIC so that the memory allocation will not attempt to sleep if there is no mem available. Link: https://lore.kernel.org/r/20200630215001.70793-7-jsmart2021@gmail.com Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-02scsi: lpfc: Fix oops due to overrun when reading SLI3 dataDick Kennedy
When using DUMP on SLI3 to read VPD and Port status data (config region 23), the adapter is overruning the kmalloc'd buffer causing havoc on other consumers of the allocation pools. Rework the loops processing the dump data and validate/size memory lengths before performing bcopy. Link: https://lore.kernel.org/r/20200630215001.70793-6-jsmart2021@gmail.com Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-02scsi: lpfc: Fix NVMe rport deregister and registration during ADISCDick Kennedy
During driver unload/reload testing, the NVMe initiator would not re-establish connectivity to NVMe controllers on reload. The failing NVMe array supports concurrent FCP and NVMe operation via different nport_id's. The array was repeatedly sending an ADISC every 2 seconds after PLOGI completed and while NVMe subsystems were executing discovery. The target would continue this state for roughly 45 seconds. The driver's current behavior on ADISC receipt is to validate a the ADISC vs the device and issue a RESUME_RPI to restore transmission. The receipt of the ADISC effectively caused a driver to take actions similar to a logout and login for the remote port, causing the deregistration of the nvme rport and a subsequent re-registration. This caused a constant reset and re-connect of the NVMe controller while this 45s window occurred. There was no need for the state changes as ADISC does not change login state. This patch corrects this behavior by validating if the remoteport is already logged in (MAPPED) and when true, avoids the call to set the ndlp state to MAPPED, which triggers the unreg/re-reg. Thus ADISC does not change the login state of the node. Link: https://lore.kernel.org/r/20200630215001.70793-5-jsmart2021@gmail.com Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-02scsi: lpfc: Fix missing MDS functionalityDick Kennedy
Visual code inspection of the MDS implementation revealed two errors in the driver: - The set features Feature Code had an incorrect value - The routine that classifies command type for cmd completions was missing the Send Frame definition. Send Frame is used for MDS driver loopback. Link: https://lore.kernel.org/r/20200630215001.70793-3-jsmart2021@gmail.com Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-02scsi: lpfc: Fix unused assignment in lpfc_sli4_bsg_link_diag_testDick Kennedy
Coverity reported the following error: Assigned value that is never used may represent unnecessary computation. The rc variable was initially assigned a value but in several cases, when an error case is detected, it is reassigned a new value. The initial value had little use. In code-reviewing this routine, it could use some cleanup: - Setting the initialization value to -ENODEV is a much better choice and lessens code in the routine. - The wasn't tracking logic errors vs no error and mailbox failure. Better to resolve by adding a status to track the mailbox failure and merge it with the logic error when the routine returns. Link: https://lore.kernel.org/r/20200630215001.70793-2-jsmart2021@gmail.com Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-06-23scsi: lpfc: Avoid another null dereference in lpfc_sli4_hba_unset()SeongJae Park
Commit cdb42becdd40 ("scsi: lpfc: Replace io_channels for nvme and fcp with general hdw_queues per cpu") has introduced static checker warnings for potential null dereferences in 'lpfc_sli4_hba_unset()' and commit 1ffdd2c0440d ("scsi: lpfc: resolve static checker warning in lpfc_sli4_hba_unset") has tried to fix it. However, yet another potential null dereference is remaining. This commit fixes it. This bug was discovered and resolved using Coverity Static Analysis Security Testing (SAST) by Synopsys, Inc. Link: https://lore.kernel.org/r/20200623084122.30633-1-sjpark@amazon.com Fixes: 1ffdd2c0440d ("scsi: lpfc: resolve static checker warning inlpfc_sli4_hba_unset") Fixes: cdb42becdd40 ("scsi: lpfc: Replace io_channels for nvme and fcp with general hdw_queues per cpu") Reviewed-by: James Smart <james.smart@broadcom.com> Signed-off-by: SeongJae Park <sjpark@amazon.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-06-05Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds
Pull SCSI updates from James Bottomley: :This series consists of the usual driver updates (qla2xxx, ufs, zfcp, target, scsi_debug, lpfc, qedi, qedf, hisi_sas, mpt3sas) plus a host of other minor updates. There are no major core changes in this series apart from a refactoring in scsi_lib.c" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (207 commits) scsi: ufs: ti-j721e-ufs: Fix unwinding of pm_runtime changes scsi: cxgb3i: Fix some leaks in init_act_open() scsi: ibmvscsi: Make some functions static scsi: iscsi: Fix deadlock on recovery path during GFP_IO reclaim scsi: ufs: Fix WriteBooster flush during runtime suspend scsi: ufs: Fix index of attributes query for WriteBooster feature scsi: ufs: Allow WriteBooster on UFS 2.2 devices scsi: ufs: Remove unnecessary memset for dev_info scsi: ufs-qcom: Fix scheduling while atomic issue scsi: mpt3sas: Fix reply queue count in non RDPQ mode scsi: lpfc: Fix lpfc_nodelist leak when processing unsolicited event scsi: target: tcmu: Fix a use after free in tcmu_check_expired_queue_cmd() scsi: vhost: Notify TCM about the maximum sg entries supported per command scsi: qla2xxx: Remove return value from qla_nvme_ls() scsi: qla2xxx: Remove an unused function scsi: iscsi: Register sysfs for iscsi workqueue scsi: scsi_debug: Parser tables and code interaction scsi: core: Refactor scsi_mq_setup_tags function scsi: core: Fix incorrect usage of shost_for_each_device scsi: qla2xxx: Fix endianness annotations in source files ...
2020-06-02Merge tag 'for-5.8/drivers-2020-06-01' of git://git.kernel.dk/linux-blockLinus Torvalds
Pull block driver updates from Jens Axboe: "On top of the core changes, here are the block driver changes for this merge window: - NVMe changes: - NVMe over Fibre Channel protocol updates, which also reach over to drivers/scsi/lpfc (James Smart) - namespace revalidation support on the target (Anthony Iliopoulos) - gcc zero length array fix (Arnd Bergmann) - nvmet cleanups (Chaitanya Kulkarni) - misc cleanups and fixes (me, Keith Busch, Sagi Grimberg) - use a SRQ per completion vector (Max Gurtovoy) - fix handling of runtime changes to the queue count (Weiping Zhang) - t10 protection information support for nvme-rdma and nvmet-rdma (Israel Rukshin and Max Gurtovoy) - target side AEN improvements (Chaitanya Kulkarni) - various fixes and minor improvements all over, icluding the nvme part of the lpfc driver" - Floppy code cleanup series (Willy, Denis) - Floppy contention fix (Jiri) - Loop CONFIGURE support (Martijn) - bcache fixes/improvements (Coly, Joe, Colin) - q->queuedata cleanups (Christoph) - Get rid of ioctl_by_bdev (Christoph, Stefan) - md/raid5 allocation fixes (Coly) - zero length array fixes (Gustavo) - swim3 task state fix (Xu)" * tag 'for-5.8/drivers-2020-06-01' of git://git.kernel.dk/linux-block: (166 commits) bcache: configure the asynchronous registertion to be experimental bcache: asynchronous devices registration bcache: fix refcount underflow in bcache_device_free() bcache: Convert pr_<level> uses to a more typical style bcache: remove redundant variables i and n lpfc: Fix return value in __lpfc_nvme_ls_abort lpfc: fix axchg pointer reference after free and double frees lpfc: Fix pointer checks and comments in LS receive refactoring nvme: set dma alignment to qword nvmet: cleanups the loop in nvmet_async_events_process nvmet: fix memory leak when removing namespaces and controllers concurrently nvmet-rdma: add metadata/T10-PI support nvmet: add metadata support for block devices nvmet: add metadata/T10-PI support nvme: add Metadata Capabilities enumerations nvmet: rename nvmet_check_data_len to nvmet_check_transfer_len nvmet: rename nvmet_rw_len to nvmet_rw_data_len nvmet: add metadata characteristics for a namespace nvme-rdma: add metadata/T10-PI support nvme-rdma: introduce nvme_rdma_sgl structure ...
2020-05-29lpfc_debugfs: get rid of pointless access_ok()Al Viro
No, you do NOT need to "protect copy from user" that way. Incidentally, your userland ABI stinks. I understand that you wanted to accept "reset" and "reset\n" as equivalent, but I suspect that accepting "reset this, you !@^!@!" had been an accident. Nothing to do about that now - it is a userland ABI... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2020-05-27lpfc: Fix return value in __lpfc_nvme_ls_abortJames Smart
A static checker reported the following issue: drivers/scsi/lpfc/lpfc_nvmet.c:1366 lpfc_nvmet_ls_abort() warn: 'ret' can be either negative or positive The comment indicates a non-zero value indicates error in the form of -Exxx, but the code is returning "1". Fix the code to return -EINVAL to be compliant to comment. Fixes: e96a22b0b7c2 ("lpfc: Refactor Send LS Abort support") Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2020-05-27lpfc: fix axchg pointer reference after free and double freesJames Smart
The axchg structure is a structure allocated early in the lpfc_nvme_unsol_ls_handler() to represent the newly received exchange. Upon error, the out_fail path in the routine unconditionally frees the pointer, yet subsequently passes the pointer to the abort routine. Additionally, the abort routine, lpfc_nvme_unsol_ls_issue_abort(), also has a failure path that will attempt to delete the pointer on error. Fix these errors by: - Removing the unconditional free so that it stays valid if passed to the abort routine. - Revise the abort routine to not free the pointer. Instead, return a success/failure status. Note: if success, the later completion of the abort frees the structure. - Back in the unsol_ls_handler() error path, if the abort routine was skipped (thus no possible reference) or the abort routine returned error, free the pointer. Fixes: 3a8070c567aa ("lpfc: Refactor NVME LS receive handling") Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2020-05-27lpfc: Fix pointer checks and comments in LS receive refactoringJames Smart
Additional testing encountered null pointers that weren't fully qualified in lpfc_nvmet_xmt_ls_abort_cmp() and lpfc_nvmet_unsol_issue_abort(). The same error was detected and reported by static checker reporting: drivers/scsi/lpfc/lpfc_sli.c:2905 lpfc_nvme_unsol_ls_handler() error: we previously assumed 'phba->targetport' could be null (see line 2837) Fix by making phba->nvmet_support and phba->targetport validity checks in lpfc_nvmet_xmt_ls_abort_cmp() and lpfc_nvmet_unsol_issue_abort(). Fixes: 3a8070c567aaa (“lpfc: Refactor NVME LS receive handling”) Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Paul Ely <paul.ely@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2020-05-26scsi: lpfc: Fix lpfc_nodelist leak when processing unsolicited eventXiyu Yang
In order to create or activate a new node, lpfc_els_unsol_buffer() invokes lpfc_nlp_init() or lpfc_enable_node() or lpfc_nlp_get(), all of them will return a reference of the specified lpfc_nodelist object to "ndlp" with increased refcnt. When lpfc_els_unsol_buffer() returns, local variable "ndlp" becomes invalid, so the refcount should be decreased to keep refcount balanced. The reference counting issue happens in one exception handling path of lpfc_els_unsol_buffer(). When "ndlp" in DEV_LOSS, the function forgets to decrease the refcnt increased by lpfc_nlp_init() or lpfc_enable_node() or lpfc_nlp_get(), causing a refcnt leak. Fix this issue by calling lpfc_nlp_put() when "ndlp" in DEV_LOSS. Link: https://lore.kernel.org/r/1590416184-52592-1-git-send-email-xiyuyang19@fudan.edu.cn Reviewed-by: Daniel Wagner <dwagner@suse.de> Reviewed-by: James Smart <james.smart@broadcom.com> Signed-off-by: Xiyu Yang <xiyuyang19@fudan.edu.cn> Signed-off-by: Xin Tan <tanxin.ctf@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-05-11scsi: lpfc: Remove redundant initialization to variable rcColin Ian King
The variable rc is being initialized with a value that is never read and it is being updated later with a new value. The initialization is redundant and can be removed. Link: https://lore.kernel.org/r/20200507203111.64709-1-colin.king@canonical.com Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Addresses-Coverity: ("Unused value")
2020-05-09lpfc: nvmet: Add Send LS Request and Abort LS Request supportJames Smart
Now that common helpers exist, add the ability to Send an NVME LS Request and to Abort an outstanding LS Request to the nvmet side of the driver. Signed-off-by: Paul Ely <paul.ely@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-05-09lpfc: nvmet: Add support for NVME LS request hosthandleJames Smart
As the nvmet layer does not have the concept of a remoteport object, which can be used to identify the entity on the other end of the fabric that is to receive an LS, the hosthandle was introduced. The driver passes the hosthandle, a value representative of the remote port, with a ls request receive. The LS request will create the association. The transport will remember the hosthandle for the association, and if there is a need to initiate a LS request to the remote port for the association, the hosthandle will be used. When the driver loses connectivity with the remote port, it needs to notify the transport that the hosthandle is no longer valid, allowing the transport to terminate associations related to the hosthandle. This patch adds support to the driver for the hosthandle. The driver will use the ndlp pointer of the remote port for the hosthandle in calls to nvmet_fc_rcv_ls_req(). The discovery engine is updated to invalidate the hosthandle whenever connectivity with the remote port is lost. Signed-off-by: Paul Ely <paul.ely@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-05-09lpfc: nvme: Add Receive LS Request and Send LS Response support to nvmeJames Smart
Now that common helpers exist, add the ability to receive NVME LS requests to the driver. New requests will be delivered to the transport by nvme_fc_rcv_ls_req(). In order to complete the LS, add support for Send LS Response and send LS response completion handling to the driver. Signed-off-by: Paul Ely <paul.ely@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-05-09lpfc: Refactor Send LS Response supportJames Smart
Currently, the ability to send an NVME LS response is limited to the nvmet (controller/target) side of the driver. In preparation of both the nvme and nvmet sides supporting Send LS Response, rework the existing send ls_rsp and ls_rsp completion routines such that there is common code that can be used by both sides. Signed-off-by: Paul Ely <paul.ely@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-05-09lpfc: Refactor Send LS Abort supportJames Smart
Send LS Abort support is needed when Send LS Request is supported. Currently, the ability to abort an NVME LS request is limited to the nvme (host) side of the driver. In preparation of both the nvme and nvmet sides supporting Send LS Abort, rework the existing ls_req abort routines such that there is common code that can be used by both sides. While refactoring it was seen the logic in the abort routine was incorrect. It attempted to abort all NVME LS's on the indicated port. As such, the routine was reworked to abort only the NVME LS request that was specified. Signed-off-by: Paul Ely <paul.ely@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>