- 15 Nov, 2018 39 commits
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Steffen Maier authored
&zfcp_erp_action.action ==> &zfcp_erp_action.type While at it, make use of the already defined enum for this purpose to get at least some build checking (even though an enum is type equivalent to an int in C). v2.6.27 commit 287ac01a ("[SCSI] zfcp: Cleanup code in zfcp_erp.c") introduced the enum which was cpp defines previously. To prevent compiler warnings with the switch(act->type), we have to separate the recently added eyecatchers from enum zfcp_erp_act_type. Since struct zfcp_erp_action type is embedded into other structures living in zfcp_def.h, we have to move enum zfcp_erp_act_type from its private definition in zfcp_erp.c to the zfcp-global zfcp_def.h. Silence one false -Wswitch compiler warning case: LUNs as the leaves in our object tree do not have any follow-up success recovery. Signed-off-by:
Steffen Maier <maier@linux.ibm.com> Reviewed-by:
Benjamin Block <bblock@linux.ibm.com> Signed-off-by:
Martin K. Petersen <martin.petersen@oracle.com>
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Steffen Maier authored
v2.6.30 commit 5ffd51a5 ("[SCSI] zfcp: replace current ERP logging with a more convenient version") changed trace record distinguishing from a numerical ID to a 7 character string called "trace tag". While starting to use function arguments with different type and semantics, it did not change the argument name accordingly. v2.6.38 commit ae0904f6 ("[SCSI] zfcp: Redesign of the debug tracing for recovery actions.") renamed variable names "id" into "tag" but only within zfcp_dbf.*, not within zfcp_erp.c. This was a bit confusing since the remainder of zfcp does use the term "trace tag". Also "id" is quite generic and it's not obvious for what. Just unify it consistently and use the "dbf" prefix to relate the arguments to the code in zfcp_dbf.*. Signed-off-by:
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Steffen Maier authored
zfcp_erp_thread_setup() update complements v2.6.32 commit 347c6a96 ("[SCSI] zfcp: Use kthread API for zfcp erp thread"). Signed-off-by:
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Steffen Maier authored
The CDB is just a part inside of FCP_CMND, see zfcp_fc_scsi_to_fcp(). While at it, fix the device driver reaction: adapter not LUN shutdown. Signed-off-by:
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Steffen Maier authored
There is no point for double bookkeeping especially just for tracing. The trace can take it from the QTCB which always exists for non-SRB responses traced with zfcp_dbf_hba_fsf_res(). As a side effect, this removes an alignment hole and reduces the size of struct zfcp_fsf_req, and thus of each pending request, by 8 bytes. Before: $ pahole -C zfcp_fsf_req drivers/s390/scsi/zfcp.ko ... struct fsf_qtcb * qtcb; /* 144 8 */ u32 seq_no; /* 152 4 */ /* XXX 4 bytes hole, try to pack */ void * data; /* 160 8 */ ... /* size: 296, cachelines: 2, members: 14 */ /* sum members: 288, holes: 2, sum holes: 8 */ /* last cacheline: 40 bytes */ After: $ pahole -C zfcp_fsf_req drivers/s390/scsi/zfcp.ko ... struct fsf_qtcb * qtcb; /* 144 8 */ void * data; /* 152 8 */ ... /* size: 288, cachelines: 2, members: 13 */ /* sum members: 284, holes: 1, sum holes: 4 */ Signed-off-by: -
Steffen Maier authored
Status read buffers (SRBs, unsolicited notifications) never use a QTCB [zfcp_fsf_req_create()]. zfcp_fsf_req_send() already uses this to distinguish SRBs from other FSF request types. We can re-use this method in zfcp_fsf_req_complete(). Introduce a helper function to make the check for req->qtcb less magic. SRBs always are FSF_QTCB_UNSOLICITED_STATUS, so we can hard-code this for the two trace functions dealing with SRBs. All other FSF request types have a QTCB and we can get the fsf_command from there. zfcp_dbf_hba_fsf_response() and thus zfcp_dbf_hba_fsf_res() are only called for non-SRB requests so it's safe to dereference the QTCB [zfcp_fsf_req_complete() returns early on SRB, else calls zfcp_fsf_protstatus_eval() which calls zfcp_dbf_hba_fsf_response()]. In zfcp_scsi_forget_cmnd() we guard the QTCB dereference with a preceding NULL check and rely on boolean shortcut evaluation. As a side effect, this causes an alignment hole which we can close in a later patch after having cleaned up all fields of struct zfcp_fsf_req. Before: $ pahole -C zfcp_fsf_req drivers/s390/scsi/zfcp.ko ... u32 status; /* 136 4 */ u32 fsf_command; /* 140 4 */ struct fsf_qtcb * qtcb; /* 144 8 */ ... After: $ pahole -C zfcp_fsf_req drivers/s390/scsi/zfcp.ko ... u32 status; /* 136 4 */ /* XXX 4 bytes hole, try to pack */ struct fsf_qtcb * qtcb; /* 144 8 */ ... Signed-off-by:
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Steffen Maier authored
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Steffen Maier authored
Have structures just before the structures that use them (without disrupting sequences of using structures such as zfcp_unit and zfcp_scsi_dev): - zfcp_adapter_mempool embedded in zfcp_adapter, - zfcp_latenc... embedded in zfcp_scsi_dev. Signed-off-by:
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Steffen Maier authored
In contrast to struct fsf_qual_latency_info, the ones here are not FSF but software defined zfcp-internal. Signed-off-by:
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Steffen Maier authored
v2.6.10 history commit 4062e12b ("[PATCH] s390: zfcp act enhancements") extended this mask by one nibble with the introduction of ZFCP_STATUS_COMMON_ACCESS_DENIED == 0x00800000 for ACT (access control table). Signed-off-by:
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Steffen Maier authored
Also clarify namespace prefix for the timeout used for FSF requests on behalf of SCSI error recovery: It is zfcp_fsf_ not zfcp_scsi_. Signed-off-by:
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Steffen Maier authored
While struct zfcp_adapter contains a pointer to zfcp_reqlist, the pointer field does not need to know the structure or even a prototype. The prototype was introduced with v2.6.34 commit b6bd2fb9 ("[SCSI] zfcp: Move FSF request tracking code to new file"). Signed-off-by:
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Steffen Maier authored
Since commit 663e0890 ("[SCSI] zfcp: remove access control tables interface") these helper functions are only used for auto port scan in zfcp_fc.c. Also change them to the corresponding namespace prefix. This is a small cleanup for the miscellaneous catchall compile unit zfcp_aux.c. Signed-off-by:
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zhong jiang authored
mempool_destroy has taken null pointer check into account. so remove the redundant check. Signed-off-by:
zhong jiang <zhongjiang@huawei.com> Acked-by:
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John Garry authored
Not all host drivers are PCI drivers - like hisi_sas, which supports a platform driver - so remove reference to "pcidev". Signed-off-by:
John Garry <john.garry@huawei.com> Signed-off-by:
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John Garry authored
Like sas_printk() did previously, SAS_DPRINTK() offers little value now that libsas logs already have the "sas" prefix through pr_fmt(fmt). So it can be dropped. However, after reviewing some logs in libsas, it is noticed that debug level is too low in many instances. So this change drops SAS_DPRINTK() and revises some logs to a more appropriate level. However many stay at debug level, although some are significantly promoted. We add -DDEBUG for compilation so that we keep the debug messages by default, as before. All the pre-existing checkpatch errors for spanning messages across multiple lines are also fixed. Finally, all other references to printk() [apart from special formatting in sas_ata.c] are removed and replaced with appropriate pr_xxx(). Suggested-by:
Joe Perches <joe@perches.com> Signed-off-by:
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John Garry authored
The printk wrapper sas_printk() adds little value now that libsas logs already have the "sas" prefix through pr_fmt(fmt), so just use pr_notice() directly. In addition, strings which span multiple lines are reunited. Originally-from: Joe Perches <joe@perches.com> Signed-off-by:
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John Garry authored
In preparation for dropping the libsas printk wrappers, use pr_fmt(fmt) declaration to add the framework log prefix - "sas". Suggested-by:
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John Garry authored
The code in these files is not longer referenced, so delete them. Signed-off-by:
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Xiang Chen authored
Currently the time of SAS SSP connection is 1ms, which means the link connection will fail if no IO response after this period. For some disks handling large IO (such as 512k), 1ms is not enough, so change it to 5ms. Signed-off-by:
Xiang Chen <chenxiang66@hisilicon.com> Signed-off-by:
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Xiang Chen authored
In function hisi_sas_task_prep(), we check asd_sas_port, but in function hisi_sas_task_exec(), we already refer to asd_sas_port by using function dev_to_hisi_hba() implicitly. So to avoid this possible invalid dereference, relocate the check to function hisi_sas_task_prep(). Signed-off-by:
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Xiang Chen authored
If INT_COAL_EN is enabled, configure time and count of interrupt coalescing. Then if CQ collects count of CQ entries in time, it will report the interrupt. Or if CQ doesn't collect enough CQ entries in time, it will report the interrupt at timeout. As all the registers are not supported to be changed dynamically, we need to config those register between disable and enable PHYs. Signed-off-by:
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Xiang Chen authored
If CQ_INT_CONVERGE_EN is enabled, the interrupts of all the 16 CQ queues will be reported by CQ0. So we need to change the process of CQ tasklet for this situation. Signed-off-by:
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Xiang Chen authored
Currently all the three HBA (v1/v2/v3 HW) share the same host attributes. To support each HBA having separate attributes in future, create per-HBA attributes. Signed-off-by:
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Christoph Hellwig authored
The wd719x driver currently uses a mix of the legacy PCI DMA and the generic DMA APIs. Switch it over to the generic DMA API entirely. Signed-off-by:
Christoph Hellwig <hch@lst.de> Signed-off-by:
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Christoph Hellwig authored
Add the SCB onto the scsi command allocation and use dma streaming mappings for it only when in use. This avoid possibly calling dma_alloc_coherent under a lock or even in irq context, while also making the code simpler. Thanks to Ondrej Zary for testing and various bug fixes. Signed-off-by:
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Christoph Hellwig authored
Warn on that case instead of trying to free them which would be fatal in case we actually had active ones. [mkp: typos] Signed-off-by:
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Christoph Hellwig authored
The driver currently uses pci_set_dma_mask despite otherwise using the generic DMA API. Signed-off-by:
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Christoph Hellwig authored
The driver currently uses pci_set_dma_mask despite otherwise using the generic DMA API. Switch it over to the better generic DMA API. Signed-off-by:
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Christoph Hellwig authored
The driver currently uses pci_set_dma_mask despite otherwise using the generic DMA API. Signed-off-by:
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Christoph Hellwig authored
The driver currently uses pci_set_dma_mask despite otherwise using the generic DMA API. Switch it over to the better generic DMA API. Signed-off-by:
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Christoph Hellwig authored
The driver currently uses pci_set_dma_mask despite otherwise using the generic DMA API. Switch it over to the better generic DMA API. [mkp: s/iscsi/isci/] Signed-off-by:
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Christoph Hellwig authored
The driver currently uses pci_set_dma_mask despite otherwise using the generic DMA API. Signed-off-by:
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Christoph Hellwig authored
The driver currently uses pci_set_dma_mask despite otherwise using the generic DMA API. Signed-off-by:
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Christoph Hellwig authored
The driver currently uses pci_set_dma_mask despite otherwise using the generic DMA API. Switch it over to the better generic DMA API. Signed-off-by:
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Christoph Hellwig authored
The driver currently uses pci_set_dma_mask despite otherwise using the generic DMA API. Also move the dma_get_required_mask check before actually setting the dma mask so that we don't end up with inconsistent settings in corner cases. Signed-off-by:
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Christoph Hellwig authored
The driver currently uses pci_set_dma_mask despite otherwise using the generic DMA API. Also move the dma_get_required_mask check before actually setting the dma mask, so that we don't end up with inconsistent settings in corner cases. Signed-off-by:
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Christoph Hellwig authored
The driver currently uses pci_set_dma_mask despite otherwise using the generic DMA API. Switch it over to the better generic DMA API helper and also ensure we set the coherent mask as well in the resume path. Signed-off-by:
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Christoph Hellwig authored
The driver currently uses pci_set_dma_mask despite otherwise using the generic DMA API. Signed-off-by:
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- 09 Nov, 2018 1 commit
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Janek Kotas authored
This patch adds a device tree platform driver for Cadence UFS Host Controller. It can be enabled with SCSI_UFS_CDNS_PLATFORM Kconfig option. Signed-off-by:
Jan Kotas <jank@cadence.com> Signed-off-by:
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