- 22 Sep, 2011 12 commits
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Bhanu Prakash Gollapudi authored
Gracefully handle bnx2fc_map_sg failure, so that queuecommand returns host busy and SCSI-ml can retry the IO. Signed-off-by:
Bhanu Prakash Gollapudi <bprakash@broadcom.com> Signed-off-by:
James Bottomley <JBottomley@Parallels.com>
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Bhanu Prakash Gollapudi authored
scsi_dma_map doesn't work for NPIV since vport dev isn't fully initialized. For more details: http://marc.info/?l=linux-scsi&m=118312448030633&w=2 and commit - c59fd9eb. Signed-off-by:
Nithin Sujir <nsujir@broadcom.com> Signed-off-by:
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nagalakshmi.nandigama@lsi.com authored
When READ_16 command is issued, the setting of SILI Bit in CDB is confirmed and if SILI bit is off, the processing of relavent Errata is executed. Added code for checking SILI bit for READ_16 as described in "SSC-4". Signed-off-by:
Nagalakshmi Nandigama <nagalakshmi.nandigama@lsi.com> Signed-off-by:
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Julia Lawall authored
Sizeof a pointer-typed expression returns the size of the pointer, not that of the pointed data. The semantic patch that fixes this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression *e; type T; identifier f; @@ f(...,(T)e,..., -sizeof(e) +sizeof(*e) ,...) // </smpl> Signed-off-by:
Julia Lawall <julia@diku.dk> Signed-off-by:
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Bhanu Prakash Gollapudi authored
bnx2fc.txt outlines the driver usage model. Signed-off-by:
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Finn Thain authored
Mutual exclusion is redundant here because all the paths in the call graph leading to esp_driver_ops.send_dma_cmd() happen under spin_lock_irqsave/ spin_lock_irqrestore. Remove it. Tested on a Mac Quadra 660av and a Mac LC 630. Signed-off-by:
Finn Thain <fthain@telegraphics.com.au> Signed-off-by:
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nagalakshmi.nandigama@lsi.com authored
Signed-off-by:
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nagalakshmi.nandigama@lsi.com authored
Support added for controllers capable of multi reply queues. The following are the modifications to the driver to support NUMA. 1) Create the new structure adapter_reply_queue to contain the reply queue info for every msix vector. This object will contain a reply_post_host_index, reply_post_free for each instance, msix_index, among other parameters. We will track all the reply queues on a link list called ioc->reply_queue_list. Each reply queue is aligned with each IRQ, and is passed to the interrupt via the bus_id parameter. (2) The driver will figure out the msix_vector_count from the PCIe MSIX capabilities register instead of the IOC Facts->MaxMSIxVectors. This is because the firmware is not filling in this field until the driver has already registered MSIX support. (3) If the ioc_facts reports that the controller is MSIX compatible in the capabilities, then the driver will request for multiple irqs. This count is calculated based on the minimum between the online cpus available and the ioc->msix_vector_count. This count is reported to firmware in the ioc_init request. (4) New routines were added _base_free_irq and _base_request_irq, so registering and freeing msix vectors were done thru simple function API. (5) The new routine _base_assign_reply_queues was added to align the msix indexes across cpus. This will initialize the array called ioc->cpu_msix_table. This array is looked up on every MPI request so the MSIxIndex is set appropriately. (6) A new shost sysfs attribute was added to report the reply_queue_count. (7) User needs to set the affinity cpu mask, so the interrupts occur on the same cpu that sent the original request. Signed-off-by: -
Moger, Babu authored
This patch adds couple more Vendor/Product IDs for RDAC.. There are no functional changes. Signed-off-by:
Babu Moger <babu.moger@netapp.com> Signed-off-by:
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Dan Williams authored
Basic support to initialize the gpio unit, accept an incomming SAS_GPIO_REG_TX_GP bitstream, and translate it to the ODx.n fields in the hardware registers. If register indexes outside the supported range are specified in the SMP frame we simply accept the write and return how many registers (SFF-8485) were written (libsas reports this as residue in the request). Signed-off-by:
Dan Williams <dan.j.williams@intel.com> Signed-off-by:
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Dan Williams authored
output_data_select registers are off by one u32 delete the macros we will never use. Reported-by:
Artur Wojcik <artur.wojcik@intel.com> Signed-off-by:
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Dan Williams authored
Add SFF-8485 v0.7 / SAS-1 smp-write-gpio register support to libsas. Defer SAS-2 support unless/until it defines an sgpio interface. Minimum implementation needed to get the lights blinking. try_test_sas_gpio_gp_bit() provides a common method to parse the incoming write data (raw bitstream), and the to_sas_gpio_gp_bit() helper routine can be used as a basis for the set/clear operations for the 'read' implementation. Host implementations parse as many bits (ODx.[012]) as are locally supported and report the number of registers successfully written. If the submitted data overruns the internal number of registers available report the write as a success with the number of bytes remaining reported in ->resid_len. Example (assuming an active backplane) set the "identify" pattern for the first 21 devices: smp_write_gpio --count=2 --data=92,49,24,92,24,92,49,24 -t 4 --index=1 /dev/bsg/sas_hostX Signed-off-by:
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- 18 Sep, 2011 1 commit
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Mike Christie authored
qla4xxx now uses iscsi_boot_sysfs to export the targets used for boot to sysfs. It needs to select that config option to make sure that module is also built. Signed-off-by:
Mike Christie <michaelc@cs.wisc.edu> Signed-off-by:
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- 17 Sep, 2011 8 commits
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Bhanu Prakash Gollapudi authored
Signed-off-by:
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Bhanu Prakash Gollapudi authored
Firmware asserts when the same CQE is armed twice. This scenario happens during RSCN stress tests as driver incorrects arms the CQ after the session is offloaded. Signed-off-by:
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Bhanu Prakash Gollapudi authored
Driver incorrectly calls bnx2fc_interface_cleanup() when bnx2fc_if_create fails which accesses bad pointer. Handle bnx2fc_if_create failure by directly calling bnx2fc_net_cleanup. Signed-off-by:
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Bhanu Prakash Gollapudi authored
It is not required to hold rtnl_lock and bnx2fc_dev_lock when calling bnx2fc_if_destroy, as the locking is only required to serialize creation and deletion of fcoe instances. More importantly, this unnecessary locking causes deadlock as bnx2fc_if_destroy calls fc_remove_host holding rtnl_lock. Signed-off-by:
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Nithin Nayak Sujir authored
When bnx2fc receives an UNREGISTER event on a vlan interface it calls destroy on all interfaces that matches the physical interface. Add vlan_id check to destroy only the vlan interface that generated the event. Signed-off-by:
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Bhanu Prakash Gollapudi authored
ABTS was not issued for timed out REC, as REC completion handler exits out if the IO completed. Check for timed out REC and issue ABTS before proceeding with further processing in REC completion handler. Also, initialize rec_retry and srr_retry before starting the IO. Signed-off-by:
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Bhanu Prakash Gollapudi authored
Link up event is generated to the driver even before vlan discovery has started. Because of this driver can send discovery solicitation on a stale vlan. Call fcoe_ctlr_link_up() only when the driver is in enabled state, which implies the vlan discovery is complete before sending solicitation. Signed-off-by:
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Bhanu Prakash Gollapudi authored
If the max receive frame size is changed during link down, the driver uses the same value after linkup unless it is reset to default. Signed-off-by:
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- 30 Aug, 2011 10 commits
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Hannes Reinecke authored
The alua device handler starts the first retry after 10 seconds, and increases it times 10 for each round. This leads to an unnecessary delay. This patch modifies it to start after one second, and increase by a factor of two. Signed-off-by:
Hannes Reinecke <hare@suse.de> Signed-off-by:
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Hannes Reinecke authored
For Target Portal Group IDs occupying the full 2 bytes in the RTPG response, the following group_id check in the alua_rtpg routine always fails in scsi_dh_alua.c: if (h->group_id == (ucp[2] << 8) + ucp[3]) { This causes the ALUA handler to wrongly identify the AAS of a specified device as well as incorrectly interpreting the supported AAS of the target as seen by the following entries in the /var/log/messages: "alua: port group 3ea state A supports tousna" "alua: port group 3e9 state A supports tousna" This is because 'ucp' is wrongly declared in alua_rtpg as a character pointer instead of an unsigned character pointer. Signed-off-by:Martin George <marting@netapp.com> Signed-off-by:
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Hannes Reinecke authored
Avoid attaching a hardware handler to a device which is already scheduled for deletion. Signed-off-by:
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Hannes Reinecke authored
When activating a patch we should always update the TPGS state as it might have changed in between. Signed-off-by:
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Hannes Reinecke authored
Some device handler types are not tied to the vendor/model but rather to a specific capability. Eg ALUA is supported if the 'TPGS' setting in the standard inquiry is set. This patch implements a 'match' callback for device handler which supersedes the original vendor/model lookup and implements the callback for the ALUA handler. Signed-off-by:
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Hannes Reinecke authored
Fixup some kernel-doc comments to reference to the correct function name. Signed-off-by:
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Hannes Reinecke authored
Instead of issuing a standard inquiry from within the alua device handler we can evaluate the TPGS setting from the existing inquiry data of the sdev and save us the I/O. Signed-off-by:
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Christoph Hellwig authored
->queuecommand must return either 0, or one of the SCSI_MLQUEUE_* return values. Non-transient errors are indicated by setting cmd->result before calling ->scsi_done and returning 0. Fix libsas to adhere to this calling convention. Note that the DID_ERROR for returns from the low-level driver might not be correct for all cases, but it's the best we can do with the current layering in libsas. I also suspect that the pre-existing handling of -SAS_QUEUE_FULL should really be SCSI_MLQUEUE_HOST_BUSY, but I'll leave that for a separate change. Signed-off-by:
Christoph Hellwig <hch@lst.de> Signed-off-by:
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Christoph Hellwig authored
Switch sas_queuecommand to a normal indentation and goto based error handling. Signed-off-by:
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Christoph Hellwig authored
Signed-off-by:
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- 29 Aug, 2011 9 commits
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Nao Nishijima authored
sd_ioctl() still use printk() for log output. It should use sd_printk() instead of printk(), as well as other sd_*. All SCSI messages should output via s*_printk() instead of printk(). Signed-off-by:
Nao Nishijima <nao.nishijima.xt@hitachi.com> Signed-off-by:
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Nao Nishijima authored
This patch allows the user to set an "alias" of the disk via sysfs interface. This patch only adds a new attribute "alias" in gendisk structure. To show the alias instead of the device name in kernel messages, we need to revise printk messages and use alias_name() in them. Example: (current) printk("disk name is %s\n", disk->disk_name); (new) printk("disk name is %s\n", alias_name(disk)); Users can use alphabets, numbers, '-' and '_' in "alias" attribute. A disk can have an "alias" which length is up to 255 bytes. This attribute is write-once. Suggested-by:James Bottomley <James.Bottomley@HansenPartnership.com> Suggested-by:
Jon Masters <jcm@redhat.com> Signed-off-by:
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Mike Christie authored
The problem is that if we are doing a scsi scan then the device goes into recovery then we will wait for the recovery to complete. It waits because scsi-ml will send inquiries or report luns and the queueing code will have been blocked due to the host not being ready. However, if we are in recovery and then a scan is started the scan will silently fail and some devices will not be added. It is easy to hit the problem where devices do not show up with FC where we are doing tests that disrupt the target controllers. When the controller is disruprted (reboot, or setting firmware, etc), and we cause the dev loss tmo to fire then devices will be removed Then when the problem has been fixed, the rport will be scanned and devices should be added back. But if we cause another disruption before scanning has started then devices will not get added back. If the problem is not started until the scan is started then the devices will be added back. This patch fixes that problem by not failing scans when the host is in recovery. We will let scsi-ml send the IO and let the queueing and scsi error handling deal with it like is done if we went into recovery while scanning. For recovery cases where the host is being torn down then with the patch we will still fail the scan since there is not point in scanning. Signed-off-by:
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Bhanu Prakash Gollapudi authored
Since it is already called in the right context with rtnl_lock and dev_mutex held. Signed-off-by:
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James Smart authored
Signed-off-by:
Alex Iannicelli <alex.iannicelli@emulex.com> Signed-off-by:
James Smart <james.smart@emulex.com> Signed-off-by:
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James Smart authored
Fix SYSFS interface issues. - In the lpfc_sli4_pdev_status_reg_wait() routine, after initial 100ms delay following write to PHYSDEV_CONTROL register for the firmware reaction, check the RN bit and ERR bit of the SLIPORT_STATUS register. If none of them became 1, the previous PHYSDEV_CONTROL register should be considered failed due to lack of privilege and error for no permission should be returned immediately without getting into the wait for RDY bits on the SLIPORT_STATUS register. - Remove the driver check on dev->is_physfn before proceed to perform the PHYSDEV_CONTROL register write, and let the PCI function's privilege setting and driver handling of PHYSDEV_CONTROL register write failure to handle the reset-ability through the SLI port. - Added key to ctlreg_write to prevent unauthorized or unexpected write to the control register. - Change return to EACCES for sysfs access that are failed because hba_reset is disabled. Signed-off-by:
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James Smart authored
Fix HBA initialization issues - Swap all values that come from the firmware image on little endian systems. Created a new bf_get_be macro that does the same as the bf_get_le macro but for big endian data instead of little endian data. - Moved the incrementing of temp_offset after the copy fixed the write object loop to use temp_offset to figure out where the end of the image is instead of offset. - Added the necessary codes for properly bringing the driver instance offline and then trying to bring the port back online with the PCI function IP reset. If it fails to bring the SLI port back online, it will fall through to bringing the SLI port to HBA error offline. - Add a call in the probe_one_s3 and probe_one_s4 routines to get the Modeldesc - Change OCe50100 to OCe15100 - Made the error log also include the PCI BAR bitmap returned from kernel call pci_select_bars(). Signed-off-by:
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James Smart authored
Fix issues pertaining to SCSI/FC protocol. - Allow frames destined to 0xFFFFFE to be processed by the driver by matching that DID with the physical port. - Call lpfc_sli_issue_iocb with context1 set to ndlp - In echo command accept function, adjust memcpy to limit memcpy to 1K - Set LPFC_SLI3_BG_ENABLED properly upon completion. - Skip the INIT_VFI call in lpfc_register_fcf if the FCF is already registered and go immediately to initial flogi. - use "status" variable instead of "ret" variable to hold the return of the fc_block_scsi_eh. Signed-off-by:
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Jayamohan Kallickal authored
This patch adds call to pci_disable_device during rmmod and shutdown. The lack of this call was causing hang in insmod - rmmod loop test Signed-off-by:
Jayamohan Kallickal <jayamohan.kallickal@emulex.com> Signed-off-by:
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