- 23 Jan, 2019 17 commits
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Satish Kharat authored
Impose an upper limit on the max number of CQ entries (corresponding to the copy wq) processed in an interrupt. Use module parameter to set the limit. Signed-off-by:
Satish Kharat <satishkh@cisco.com> Signed-off-by:
Martin K. Petersen <martin.petersen@oracle.com>
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Satish Kharat authored
Do RQ enable before posting descriptor. This is needed for later hw revisions. Signed-off-by:
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Satish Kharat authored
Doing vnic_device_enable before this could cause interrupts to happen before they are setup. Signed-off-by:
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Satish Kharat authored
The change is to print warning when scsi done is called for an IO that has not yet been issued to the fw. Also adding sc and tag to debug print when IO is cleaned up. Signed-off-by:
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Satish Kharat authored
This change is to add fnic stats for the max number of CQs (corresponding to copy WQ) processed in a given interrupt, max time taken by the ISR. Signed-off-by:
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Satish Kharat authored
This patch adds the current fnic port speed stat to fnic debug stats. Signed-off-by:
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Satish Kharat authored
Need to use fnic_lock as well as host lock in that order to set state flags. [mkp: typos] Signed-off-by:
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Satish Kharat authored
rq->ctrl not enabled when this is called is bad but not fatal and can continue. Signed-off-by:
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Satish Kharat authored
This patch changes the default lun queuedepth for fnic to 256. Signed-off-by:
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Satish Kharat authored
This patch is to add fnic 20G port speed display in sysfs. [mkp: typo] Signed-off-by:
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Bart Van Assche authored
From scsi_init_command(), a function called by scsi_mq_prep_fn(): /* zero out the cmd, except for the embedded scsi_request */ memset((char *)cmd + sizeof(cmd->req), 0, sizeof(*cmd) - sizeof(cmd->req) + dev->host->hostt->cmd_size); In other words, scsi_mq_prep_fn() clears scsi_cmnd.flags. Hence move the clear_bit() call into the else branch, the only branch in which this code is necessary. See also commit f1342709 ("scsi: Do not rely on blk-mq for double completions"). Cc: Keith Busch <keith.busch@intel.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Hannes Reinecke <hare@suse.com> Signed-off-by:
Bart Van Assche <bvanassche@acm.org> Reviewed-by:
Keith Busch <keith.busch@intel.com> Signed-off-by:
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Bart Van Assche authored
This patch makes the source code more uniform and does not change any functionality. Reviewed-by:
Hannes Reinecke <hare@suse.com> Signed-off-by:
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Martin K. Petersen authored
Rework sd_setup_read_write_cmnd() so it becomes more readable. Put all the sanity checking at the head of the function and sanitize the logged error messages. Move the legacy SCSI logging calls to the end of the functions and reduce conditional nesting. Reviewed-by:
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Martin K. Petersen authored
Create a helper function for each of the 6, 10, 16 and 32-byte READ/WRITE variants and use those when setting up reads and writes. Reviewed-by:
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Martin K. Petersen authored
Avoid open coding the checks for the supported logical block sizes and use a mask to check for misaligned I/O. Use our helper functions to scale lba and block count. Reviewed-by:
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Martin K. Petersen authored
We have had several bugs due mixing sector and logical block size terminology. In the block layer, a sector is a 512-byte unit regardless of the logical block size of the underlying device. But the term "sector" is still widely used in sd.c when referring to logical block sized units. We previously introduced helper functions such as sectors_to_logical() and logical_to_sectors() to make the distinction clear. Use these to make the code in sd.c consistent wrt. logical blocks and block layer sectors. Use "lba" to describe a logical block address and "nr_blocks" when counting logical blocks. SBC uses "TRANSFER LENGTH" to describe the latter but this term was avoided to prevent confusion with the very similar DMA transfer size (->transfersize) which is counted in bytes. Reviewed-by:
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Bart Van Assche authored
This patch does not change any functionality. Reviewed-by:
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- 12 Jan, 2019 14 commits
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Evan Green authored
CONFIG_SCSI_UFS_QCOM selects CONFIG_PHY_QCOM_UFS, assuming that this was the only possible PHY driver Qualcomm's UFS controller would use. But in SDM845, the UFS driver is bundled into phy-qcom-qmp, and phy-qcom-ufs is unused. Remove the select, since for SDM845 it adds useless drivers to the build. Signed-off-by:
Evan Green <evgreen@chromium.org> Signed-off-by:
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Otto Sabart authored
The tmscsim.txt doc file was removed in c121107d. Fixes: c121107d ("scsi: documentation: Obsolete documentation references") Signed-off-by:
Otto Sabart <ottosabart@seberm.com> Signed-off-by:
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John Garry authored
+----------+ +----------+ | | | | | |--- 3.0 G ---| |--- 6.0 G --- SAS disk | | | | | |--- 3.0 G ---| |--- 6.0 G --- SAS disk |initiator | | | | device |--- 3.0 G ---| Expander |--- 6.0 G --- SAS disk | | | | | |--- 3.0 G ---| |--- 6.0 G --- SATA disk -->failed to connect | | | | | | | |--- 6.0 G --- SATA disk -->failed to connect | | | | +----------+ +----------+ According to Serial Attached SCSI - 1.1 (SAS-1.1): If an expander PHY attached to a SATA PHY is using a physical link rate greater than the maximum connection rate supported by the pathway from an STP initiator port, a management application client should use the SMP PHY CONTROL function (see 10.4.3.10) to set the PROGRAMMED MAXIMUM PHYSICAL LINK RATE field of the expander PHY to the maximum connection rate supported by the pathway from that STP initiator port. Currently libsas does not support checking if this condition occurs, nor rectifying when it does. Such a condition is not at all common, however it has been seen on some pre-silicon environments where the initiator PHY only supports a 1.5 Gbit maximum linkrate, mated with 12G expander PHYs and 3/6G SATA phy. This patch adds support for checking and rectifying this condition during initial device discovery only. We do support checking min pathway connection rate during revalidation phase, when new devices can be detected in the topology. However we do not support in the case of the the user reprogramming PHY linkrates, such that min pathway condition is not met/maintained. A note on root port PHY rates: The libsas root port PHY rates calculation is broken. Libsas sets the rates (min, max, and current linkrate) of a root port to the same linkrate of the first PHY member of that same port. In doing so, it assumes that all other PHYs which subsequently join the port to have the same negotiated linkrate, when they could actually be different. In practice this doesn't happen, as initiator and expander PHYs are normally initialised with consistent min/max linkrates. This has not caused an issue so far, so leave alone for now. Tested-by:
Jian Luo <luojian5@huawei.com> Signed-off-by:
John Garry <john.garry@huawei.com> Signed-off-by:
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John Garry authored
Currently the SMP PHY control execution result is checked, however the function result for the command is not. As such, we may be missing all potential errors, like SMP FUNCTION FAILED, INVALID REQUEST FRAME LENGTH, etc., meaning the PHY control request has failed. In some scenarios we need to ensure the function result is accepted, so add a check for this. Tested-by:
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John Garry authored
Currently much indentation in this file is done with whitespaces instead of tabs, which can make reading difficult, so fix this up. Some other little minor tidy-up is done, but this file still has many other checkpatch warnings (generally linelength > 80 or function arguments have no identifier names). All libsas code can be audited for checkpatch issues later. Signed-off-by:
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Giridhar Malavali authored
When SGE buffer containing DIF information crosses 4G boundary, it results in DMA error. This patch fixes this issue by calculating SGE buffer size and if it crosses 4G boundary, driver will split it into multiple SGE buffers to avoid DMA error. Signed-off-by:
Giridhar Malavali <gmalavali@marvell.com> Signed-off-by:
Himanshu Madhani <hmadhani@marvell.com> Signed-off-by:
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Martin K. Petersen authored
Allow user to selectively enable/disable DIF/DIX protection capabilities mask. Signed-off-by:
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Gustavo A. R. Silva authored
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. Notice that, in some cases, I replaced "FALLTHROUGH" with a "fall through" annotation and then placed it at the bottom of the corresponding switch case, which is what GCC is expecting to find. Addresses-Coverity-ID: 114961 ("Missing break in switch") Addresses-Coverity-ID: 114962 ("Missing break in switch") Addresses-Coverity-ID: 114963 ("Missing break in switch") Addresses-Coverity-ID: 114964 ("Missing break in switch") Signed-off-by:Gustavo A. R. Silva <gustavo@embeddedor.com> Reviewed-by:
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Gustavo A. R. Silva authored
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. Notice that, in this particular case, I replaced "!!! fall through !!!" comment with "fall through" annotations, which is what GCC is expecting to find. Addresses-Coverity-ID: 146155 ("Missing break in switch") Signed-off-by:Sudarsana Kalluru <Sudarsana.Kalluru@qlogic.com> Signed-off-by:
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Gustavo A. R. Silva authored
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. Notice that I replaced "!! fall through !!" and "!!! fall through !!!" comments with "fall through" annotations, which is what GCC is expecting to find. Addresses-Coverity-ID: 744899 ("Missing break in switch") Addresses-Coverity-ID: 744900 ("Missing break in switch") Addresses-Coverity-ID: 744901 ("Missing break in switch") Signed-off-by: -
Gustavo A. R. Silva authored
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. Notice that, in this particular case, I replaced "!!! fall through !!!" with a "fall through" annotation, which is what GCC is expecting to find. Signed-off-by:
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Gustavo A. R. Silva authored
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. Signed-off-by:
Bradley Grove <bgrove@atto.com> Signed-off-by:
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Gustavo A. R. Silva authored
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. Addresses-Coverity-ID: 114994 ("Missing break in switch") Addresses-Coverity-ID: 114995 ("Missing break in switch") Signed-off-by:Kai Mäkisara <kai.makisara@kolumbus.fi> Signed-off-by:
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Gustavo A. R. Silva authored
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. Notice that, in this particular case, I replaced "allow fall-through" with a "fall through" annotation, which is what GCC is expecting to find. Signed-off-by:
Nilesh Javali <njavali@marvell.com> Signed-off-by:
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- 09 Jan, 2019 9 commits
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Colin Ian King authored
The return statement is indented incorrectly, fix this by removing a single tab. Signed-off-by:
Colin Ian King <colin.king@canonical.com> Acked-by:
Manish Rangankar <mrangankar@marvell.com> Signed-off-by:
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John Garry authored
Currently the protection lookup tables in sd_prot_flag_mask() and sd_prot_op() are declared as non-static. As such, they will be rebuilt for each respective function call. Optimise by making them static. This saves ~100B object code for sd.c: Before: text data bss dec hex filename 25403 1024 16 26443 674b drivers/scsi/sd.o After: text data bss dec hex filename 25299 1024 16 26339 66e3 drivers/scsi/sd.o In addition, since those same functions are declared in sd.h, but each are only referenced in sd.c, relocate them to that same c file. The inline specifier is dropped also, since gcc should be able to make the decision to inline. Signed-off-by:
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Luo Jiaxing authored
This patch create debugfs file for IOST and add file operations. Signed-off-by:
Luo Jiaxing <luojiaxing@huawei.com> Signed-off-by:
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Luo Jiaxing authored
This patch create debugfs file for DQ and add file operations Signed-off-by:
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Luo Jiaxing authored
This patch create debugfs file for CQ and add file operations. Signed-off-by:
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Luo Jiaxing authored
This patch create debugfs file for port register and add file operations. Signed-off-by:
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Luo Jiaxing authored
This patch create debugfs file for global register and add file operations. Signed-off-by:
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Luo Jiaxing authored
This patch takes snapshot for global regs, port regs, CQ, DQ, IOST, ITCT. Add code for snapshot trig and generate dump directory. Signed-off-by:
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Luo Jiaxing authored
This patch allocates snapshot memory for global reg, port regs, CQ, DQ, IOST, ITCT. When we fail to allocate memory for some registers, we free the memory and set hisi_sas_debugfs_enable as 0 to stop loading debugfs from running. Signed-off-by:
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