- 25 Aug, 2017 5 commits
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John Garry authored
Instances of kfree(shost) should be replaced with scsi_host_put(). In addition, a missing scsi_host_put() is added for error path in hisi_sas_shost_alloc_pci() and v3 driver removal. Signed-off-by: Pan Bian <bianpan2016@163.com> # For main.c changes Signed-off-by:
John Garry <john.garry@huawei.com> Signed-off-by:
Martin K. Petersen <martin.petersen@oracle.com>
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John Garry authored
Variable res only holds value 0, so remove it. This cleans up a coccicheck warning. Signed-off-by:
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Xiang Chen authored
Add function to set linkrate for v3 hw. Signed-off-by:
Xiang Chen <chenxiang66@hisilicon.com> Signed-off-by:
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Xiang Chen authored
This patch updates some register setting according to recommendation from HW designer and experiment. Signed-off-by:
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Xiang Chen authored
Use ACPI "_RST" method to reset the controller, since FLR is not supported. Function hisi_sas_stop_phys() is introduced to remove some code duplication. Signed-off-by:
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- 11 Aug, 2017 13 commits
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Xiang Chen authored
This patch adds calls to kill CQ takslets v3 hw during probe failure. Signed-off-by:
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Xiang Chen authored
The channel interrupt is to process all the interrupts except PHY UP/DOWN and broadcast interrupt. So we need to clear all the interrupts except those 3 interrupts after processing channel interrupts. Signed-off-by:
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Xiang Chen authored
Modify STP link timer from 10ms to 500ms. Also add the register address. Signed-off-by:
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Xiang Chen authored
For v3 hw, internal abort function required status and command buffer to be set, so add necessary code for this. Signed-off-by:
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Xiaofei Tan authored
Add two ATA commands, ATA_CMD_ZAC_MGMT_IN and ATA_CMD_ZAC_MGMT_OUT in hisi_sas_get_ata_protocol(), to support SATA SMR disk. Signed-off-by:
Xiaofei Tan <tanxiaofei@huawei.com> Signed-off-by:
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Xiang Chen authored
This patch is a fix related to freeing a device in v2 hw driver. Before, we polled to ITCT CLR interrupt to check if a device is free. This was error prone, as if the interrupt doesn't occur in 10us, we miss processing it. To avoid this situation, service this interrupt and sync the event with a completion. Signed-off-by:
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Xiang Chen authored
This patch adds support to clean-up allocated IRQs and kill tasklets when probe fails and for driver removal. Signed-off-by:
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Xiang Chen authored
This patch removes some repeated configurations: (1) The device id of the device is already set in the alloc function, so we don't need to modify in free device function. (2) Field dev_type and dev_status are configured in hisi_sas_dev_gone(), so there is no need for repeated config in free_device_v3_hw. Signed-off-by: -
John Garry authored
The code to print ECC errors in v2 hw driver is very repetitive. This patch condensed the code by looping an array of errors. Signed-off-by:
Shiju Jose <shiju.jose@huawei.com> Signed-off-by:
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Xiaofei Tan authored
Add DFX feature for v2 hw. We are adding support for the following errors: - loss_of_dword_sync_count - invalid_dword_count - phy_reset_problem_count - running_disparity_error_count Signed-off-by:
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Xiang Chen authored
The value dw0 is the residual bytes when UNDERFLOW error happens, but we filled the residual with the value of dw3 before. So change the residual from dw3 to dw0. Signed-off-by:
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Xiang Chen authored
When some interrupts happen together, we need to process every interrupt one-by-one, and should not return immediately when one interrupt process is finished being processed. Signed-off-by:
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Xiaofei Tan authored
This patch provides fixes for the following issues: 1. Fix issue of controller reset required to send commands. For reset process, it may be required to send commands to the controller, but not during soft reset. So add HISI_SAS_NOT_ACCEPT_CMD_BIT to prevent executing a task during this period. 2. Send a broadcast event in rescan topology to detect any topology changes during reset. 3. Previously it was not ensured that libsas has processed the PHY up and down events after reset. Potentially this could cause an issue that we still process the PHY event after reset. So resolve this by flushing shot workqueue in LLDD reset. 4. Port ID requires refresh after reset. The port ID generated after reset is not guaranteed to be the same as before reset, so it needs to be refreshed for each device's ITCT. Signed-off-by:
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- 10 Aug, 2017 22 commits
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Kevin Barnett authored
Reviewed-by:
Scott Benesh <scott.benesh@microsemi.com> Signed-off-by:
Kevin Barnett <kevin.barnett@microsemi.com> Signed-off-by:
Don Brace <don.brace@microsemi.com> Signed-off-by:
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Kevin Barnett authored
Update the driver’s PCI IDs to match the latest Microsemi controllers Reviewed-by:
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Kevin Barnett authored
Add PQI reset to driver shutdown callback to work around controller bug. During an 1.) OS shutdown or 2.) kexec outside of a kdump, the Linux kernel will clear BME on our controller. If BME is cleared during a controller/host PCIe transfer, the controller will lock up. So we perform a PQI reset in the driver's shutdown callback function to eliminate the possibility of a controller/host PCIe transfer being active when the kernel clears BME immediately after calling the driver's shutdown callback. Reviewed-by:
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Kevin Barnett authored
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Kevin Barnett authored
- make pass-thru requests bi-directional Reviewed-by:
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Kevin Barnett authored
- distinguish between shutdown and non-shutdown. Reviewed-by:
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Kevin Barnett authored
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Colin Ian King authored
The null check on pHba->channel[chan].device is redundant because device is an array and hence can never be null. Remove the check. Detected by CoverityScan, CID#115362 ("Array compared against 0") Signed-off-by:Colin Ian King <colin.king@canonical.com> Signed-off-by:
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Pan Bian authored
The return value of dma_map_single() should be checked by dma_mapping_error(). However, in function qla26xx_dport_diagnostics(), its return value is checked against NULL, which could result in failures. Signed-off-by:
Pan Bian <bianpan2016@163.com> Acked-by:
Himanshu Madhani <himanshu.madhani@cavium.com> Signed-off-by:
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Pan Bian authored
The return value of scsi_host_alloc() should be released by scsi_host_put(). However, in function mvs_pci_init(), kfree() is used. This patch replaces kfree() with scsi_host_put() to avoid possible memory leaks. Signed-off-by:
Jack Wang <jinpu.wang@profitbricks.com> Signed-off-by:
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Pan Bian authored
In function pm8001_pci_probe(), on errors that the control flow jumps to label err_out_ha_free, function pm8001_free() is called. In pm8001_free(), scsi_host_put() is called to release shost, which keeps the return value of scsi_host_alloc(). After pm8001_free() returns, kfree() is called to free shost again, resulting in a double free bug. This patch removes scsi_host_put() from pm8001_free() and explicitly calls scsi_host_put() to release Scsi_Host in need. Signed-off-by:
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weiping authored
fix allocate instance->pd_info twice which was introduced by 96188a89. Signed-off-by:
weiping zhang <zhangweiping@didichuxing.com> Acked-by:
Sumit Saxena <sumit.saxena@broadcom.com> Signed-off-by:
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Finn Thain authored
After sending a message, always clear esp->msg_out_len. Otherwise, eh_abort_handler may subsequently fail to send an ABORT TASK SET message. Tested-by:
Stan Johnson <userm57@yahoo.com> Signed-off-by:
Finn Thain <fthain@telegraphics.com.au> Signed-off-by:
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Finn Thain authored
If an LLD aborts a task set, it should complete the affected commands with the appropriate result code. In a couple of cases esp_scsi doesn't do so. When the initiator receives an unhandled message, just respond by sending a MESSAGE REJECT instead of ABORT TASK SET, and thus avoid the issue. OTOH, a MESSAGE REJECT sent by a target can be taken as an indication that the initiator messed up somehow. It isn't always possible to abort correctly, so just fall back on a SCSI bus reset, which will complete the affected commands with the appropriate result code. For example, certain Apple (Sony) CD-ROM drives, when the non-existent LUN 1 is scanned, can't handle the INQUIRY command. The problem is not detected until the initiator gets a MESSAGE REJECT. Whenever esp_scsi sees that message, it raises ATN and sends ABORT TASK SET -- but neglects to complete the failed scmd. The target then goes into DATA OUT phase (probably bogus), while the ESP device goes into disconnected mode (surprising, given the bus phase). The next Transfer Information command from esp_scsi then causes an Invalid Command interrupt because that command is not valid when in disconnected mode: mac_esp: using PDMA for controller 0 mac_esp mac_esp.0: esp0: regs[50f10000:(null)] irq[19] mac_esp mac_esp.0: esp0: is a ESP236, 16 MHz (ccf=4), SCSI ID 7 scsi host0: esp scsi 0:0:0:0: Direct-Access SEAGATE ST318416N 0010 PQ: 0 ANSI: 3 scsi target0:0:0: Beginning Domain Validation scsi target0:0:0: asynchronous scsi target0:0:0: Domain Validation skipping write tests scsi target0:0:0: Ending Domain Validation scsi 0:0:3:0: CD-ROM SONY CD-ROM CDU-8003A 1.9a PQ: 0 ANSI: 2 CCS scsi target0:0:3: Beginning Domain Validation scsi target0:0:3: FAST-5 SCSI 2.0 MB/s ST (500 ns, offset 15) scsi target0:0:3: Domain Validation skipping write tests scsi target0:0:3: Ending Domain Validation scsi host0: unexpected IREG 40 scsi host0: Dumping command log scsi host0: ent[2] CMD val[c2] sreg[90] seqreg[cc] sreg2[00] ireg[20] ss[01] event[0c] scsi host0: ent[3] CMD val[00] sreg[91] seqreg[04] sreg2[00] ireg[18] ss[00] event[0c] scsi host0: ent[4] EVENT val[0d] sreg[91] seqreg[04] sreg2[00] ireg[18] ss[00] event[0c] scsi host0: ent[5] EVENT val[03] sreg[91] seqreg[04] sreg2[00] ireg[18] ss[00] event[0d] scsi host0: ent[6] CMD val[90] sreg[91] seqreg[04] sreg2[00] ireg[18] ss[00] event[03] scsi host0: ent[7] EVENT val[05] sreg[91] seqreg[04] sreg2[00] ireg[18] ss[00] event[03] scsi host0: ent[8] EVENT val[0d] sreg[93] seqreg[cc] sreg2[00] ireg[10] ss[00] event[05] scsi host0: ent[9] CMD val[01] sreg[93] seqreg[cc] sreg2[00] ireg[10] ss[00] event[0d] scsi host0: ent[10] CMD val[11] sreg[93] seqreg[cc] sreg2[00] ireg[10] ss[00] event[0d] scsi host0: ent[11] EVENT val[0b] sreg[93] seqreg[cc] sreg2[00] ireg[10] ss[00] event[0d] scsi host0: ent[12] CMD val[12] sreg[97] seqreg[cc] sreg2[00] ireg[08] ss[00] event[0b] scsi host0: ent[13] EVENT val[0c] sreg[97] seqreg[cc] sreg2[00] ireg[08] ss[00] event[0b] scsi host0: ent[14] CMD val[44] sreg[90] seqreg[cc] sreg2[00] ireg[20] ss[00] event[0c] scsi host0: ent[15] CMD val[01] sreg[90] seqreg[cc] sreg2[00] ireg[20] ss[01] event[0c] scsi host0: ent[16] CMD val[c2] sreg[90] seqreg[cc] sreg2[00] ireg[20] ss[01] event[0c] scsi host0: ent[17] CMD val[00] sreg[87] seqreg[02] sreg2[00] ireg[18] ss[00] event[0c] scsi host0: ent[18] EVENT val[0d] sreg[87] seqreg[02] sreg2[00] ireg[18] ss[00] event[0c] scsi host0: ent[19] EVENT val[06] sreg[87] seqreg[02] sreg2[00] ireg[18] ss[00] event[0d] scsi host0: ent[20] CMD val[01] sreg[87] seqreg[02] sreg2[00] ireg[18] ss[00] event[06] scsi host0: ent[21] CMD val[10] sreg[87] seqreg[02] sreg2[00] ireg[18] ss[00] event[06] scsi host0: ent[22] CMD val[1a] sreg[87] seqreg[ca] sreg2[00] ireg[08] ss[00] event[06] scsi host0: ent[23] CMD val[12] sreg[87] seqreg[ca] sreg2[00] ireg[08] ss[00] event[06] scsi host0: ent[24] EVENT val[0d] sreg[87] seqreg[ca] sreg2[00] ireg[08] ss[00] event[06] scsi host0: ent[25] EVENT val[09] sreg[86] seqreg[ca] sreg2[00] ireg[10] ss[00] event[0d] scsi host0: ent[26] CMD val[01] sreg[86] seqreg[ca] sreg2[00] ireg[10] ss[00] event[09] scsi host0: ent[27] CMD val[10] sreg[86] seqreg[ca] sreg2[00] ireg[10] ss[00] event[09] scsi host0: ent[28] EVENT val[0a] sreg[86] seqreg[ca] sreg2[00] ireg[10] ss[00] event[09] scsi host0: ent[29] EVENT val[0d] sreg[80] seqreg[ca] sreg2[00] ireg[20] ss[00] event[0a] scsi host0: ent[30] EVENT val[04] sreg[80] seqreg[ca] sreg2[00] ireg[20] ss[00] event[0d] scsi host0: ent[31] CMD val[01] sreg[80] seqreg[ca] sreg2[00] ireg[20] ss[00] event[04] scsi host0: ent[0] CMD val[90] sreg[80] seqreg[ca] sreg2[00] ireg[20] ss[00] event[04] scsi host0: ent[1] EVENT val[05] sreg[80] seqreg[ca] sreg2[00] ireg[20] ss[00] event[04] scsi target0:0:3: FAST-5 SCSI 2.0 MB/s ST (500 ns, offset 15) scsi target0:0:0: asynchronous sr 0:0:3:0: [sr0] scsi-1 drive cdrom: Uniform CD-ROM driver Revision: 3.20 sd 0:0:0:0: Attached scsi generic sg0 type 0 sr 0:0:3:0: Attached scsi generic sg1 type 5 This patch resolves this issue because the bus reset causes the INQUIRY command to fail earlier, and return the appropriate result code. Tested-by:
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Finn Thain authored
This patch improves readability. There are no functional changes. Since this touches on a questionable ESP_INTR_DC conditional, add some commentary to help others who may (as I did) find themselves chasing an "Invalid Command" error after the device flags this condition. This cleanup also eliminates a warning from "make W=1": drivers/scsi/esp_scsi.c: In function 'esp_finish_select': drivers/scsi/esp_scsi.c:1233:5: warning: variable 'orig_select_state' set but not used [-Wunused-but-set-variable] u8 orig_select_state; Tested-by:
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Finn Thain authored
When in MESSAGE IN phase, the ESP device does not automatically acknowledge each byte that is transferred by PIO. The mac_esp driver neglects to explicitly ack them, which causes a timeout during messages larger than one byte (e.g. tag bytes during reconnect). Fix this with an ESP_CMD_MOK command after each byte. The MESSAGE IN phase is also different in that each byte transferred raises ESP_INTR_FDONE. So don't exit the transfer loop for this interrupt, for this phase. That resolves the "Reconnect IRQ2 timeout" error on those Macs which use PIO transfers instead of PDMA. This patch also improves on the weak tests for unexpected interrupts and phase changes during PIO transfers. Tested-by:
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Finn Thain authored
Avoid the following warning from "make C=1": CHECK drivers/scsi/mac_esp.c drivers/scsi/mac_esp.c:357:30: warning: incorrect type in initializer (different address spaces) drivers/scsi/mac_esp.c:357:30: expected unsigned char [usertype] *fifo drivers/scsi/mac_esp.c:357:30: got void [noderef] <asn:2>* Tested-by:
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Bhumika Goyal authored
Add const to bin_attribute structures as they are only passed to the functions system_{remove/create}_bin_file. The arguments passed are of type const, so declare the structures to be const. Done using Coccinelle. Signed-off-by:Bhumika Goyal <bhumirks@gmail.com> Reviewed-by:
Christoph Hellwig <hch@lst.de> Signed-off-by:
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Martin Peschke authored
This patch adds early checks to avoid burning CPU cycles on the assembly of trace entries which would be skipped anyway. Introduce a static const variable to keep the trace level to check with debug_level_enabled() in sync with the actual trace emit with debug_event(). In order not to refactor the SAN tracing too much, simply use a define instead. This change is only for the non / semi hot paths, while the actual (I/O) hot path was already improved earlier: zfcp_dbf_scsi() is already guarded by its only caller _zfcp_dbf_scsi() since commit dcd20e23 ("[SCSI] zfcp: Only collect SCSI debug data for matching trace levels"). zfcp_dbf_hba_fsf_res() is already guarded by its only caller zfcp_dbf_hba_fsf_response() since commit 2e261af8 ("[SCSI] zfcp: Only collect FSF/HBA debug data for matching trace levels"). Signed-off-by:
Martin Peschke <mpeschke@linux.vnet.ibm.com> [maier@linux.vnet.ibm.com: rebase, reword, default level 3 branch prediction] Signed-off-by:
Steffen Maier <maier@linux.vnet.ibm.com> Reviewed-by:
Benjamin Block <bblock@linux.vnet.ibm.com> Signed-off-by:
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Martin Peschke authored
Improves commit 43f60cbd ("[SCSI] zfcp: No automatic port_rescan on events") Signed-off-by:
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Martin Peschke authored
v2.6.38 commit a54ca0f6 ("[SCSI] zfcp: Redesign of the debug tracing for HBA records.") dropped trace information previously introduced with v2.6.27 commit c3baa9a2 ("[SCSI] zfcp: Add information about interrupt to trace.") but kept and needlessly assigned a now no longer used struct field. Signed-off-by:
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Steffen Maier authored
Commit a54ca0f6 ("[SCSI] zfcp: Redesign of the debug tracing for HBA records.") refactored zfcp_dbf_hba_berr into zfcp_dbf_hba_bit_err but added the prototype for the latter without removing it for the former. Suggested-by:
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