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* [SCSI] scsi_dh_rdac: Retry for NOT_READY check conditionChauhan, Vijay2009-03-171-0/+6
| | | | | | | | This patch adds retry for NOT_READY check condition - Quiesce in progress (02/A1/02) Signed-off-by: Vijay Chauhan<vijay.chauhan@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] mpt2sas: make global symbols uniqueEric Moore2009-03-173-10/+10
| | | | | | | | | | The ioc_list global symbol is already used in 1st generation mpt fusion drivers, so this patch makes it unique in the 2nd generation driver. I've checked the entire sources, and I don't see any other global system missing the mpt2sas_xxx prefix. Signed-off-by: Eric Moore <eric.moore@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] sd: Make revalidate less chattyMartin K. Petersen2009-03-172-24/+38
| | | | | | | | | | sd_revalidate ends up being called several times during device setup. With this patch we print everything during the first scan. Subsequent invocations will only print a message if the parameter in question has actually changed (LUN capacity has increased, etc.). Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] sd: Try READ CAPACITY 16 first for SBC-2 devicesMatthew Wilcox2009-03-171-3/+24
| | | | | | | | | | | | | | | | New features are being added to the READ CAPACITY 16 results, so we want to issue it in preference to READ CAPACITY 10. Unfortunately, some devices misbehave when they see a READ CAPACITY 16, so we restrict this command to devices which claim conformance to SPC-3 (aka SBC-2), or claim they have features which are only reported in the READ CAPACITY 16 data. The READ CAPACITY 16 command is optional, even for SBC-2 devices, so we fall back to READ CAPACITY 10 if READ CAPACITY 16 fails. [jejb: don't error if device supports SBC-2 but doesn't support RC16] Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Tested-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] sd: Refactor sd_read_capacity()Matthew Wilcox2009-03-141-86/+155
| | | | | | | | | | | | | The sd_read_capacity() function was about 180 lines long and included a backwards goto and a tricky state variable. Splitting out read_capacity_10() and read_capacity_16() (about 50 lines each) reduces sd_read_capacity to about 100 lines and gets rid of the backwards goto and the state variable. I've tried to avoid any behaviour change with this patch. [jejb: upped transfer request to standard recommended 32 for RC16] Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] mpt2sas v00.100.11.15Eric Moore2009-03-1320-0/+21993
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * This is new scsi lld device driver from LSI supporting the SAS 2.0 standard. I have split patchs by filename. * Here is list of new 6gb host controllers: LSI SAS2004 LSI SAS2008 LSI SAS2108 LSI SAS2116 * Here are the changes in the 4th posting of this patch set: (1) fix compile errors when SCSI_MPT2SAS_LOGGING is not enabled (2) add mpt2sas to the SCSI Mid Layer Makefile (3) append mpt2sas_ to the naming of all non-static functions (4) fix oops for SMP_PASSTHRU (5) doorbell algorithm imported changes from windows driver * Here are the changes in the 3rd posting of this patch set: (1) add readl following writel from the function that disables interrupts (2) replace 0xFFFFFFFFFFFFFFFFULL with ~0ULL (3) when calling pci_enable_msix, only pass one msix entry (instead of 15). (4) remove the "current HW implementation uses..... " comment in the sources (5) merged bug fix for SIGIO/POLLIN notifcation; reported by the storlib team. * Here are the changes in the 2nd posting of this patch set: (1) use little endian types in the mpi headers (2) merged in bug fix's from inhouse drivers. Signed-off-by: Eric Moore <eric.moore@lsi.com> Tested-by: peter Bogdanovic <pbog@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] mpt2sas: add MPT2SAS_MINOR(221) to miscdevice.hEric Moore2009-03-131-0/+1
| | | | | Signed-off-by: Eric Moore <eric.moore@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] ch: Add scsi type modaliasScott James Remnant2009-03-131-0/+1
| | | | | | | | | | The ch module is missing the scsi:t-0x08* alias that would cause it to be auto-loaded when a device of that type if found by udev, requiring udev to have a specific rule just for this one module. This patch adds the alias. Signed-off-by: Scott James Remnant <scott@canonical.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] 3w-9xxx: add power management supportadam radford2009-03-132-3/+100
| | | | | Signed-off-by: Adam Radford <aradford@gmail.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] bsg: add linux/types.h include to bsg.hDouglas Gilbert2009-03-131-0/+2
| | | | | | | | | | | | | Since bsg.h has recently been added to the list of kernel headers that should be exported to the user space, this attachment makes bsg.h more user space "friendly". Specifically autotools dislike headers that don't compile freestanding and bsg.h's use of __u32 types (and friends) are not standard C (C90 or C99). The inclusion of linux/types.h fixes that. Signed-off-by: Douglas Gilbert <dgilbert@interlog.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] cxgb3i: fix function descriptionsKaren Xie2009-03-135-20/+14
| | | | | | | | Limit function descriptions to be one line. Signed-off-by: Karen Xie <kxie@chelsio.com> Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] libiscsi: fix possbile null ptr session command cleanupMike Christie2009-03-131-2/+5
| | | | | | | | | | | | | If the iscsi eh fires when the current task is a nop, then the task->sc pointer is null. fail_all_commands could then try to do task->sc->device and oops. We actually do not need to access the curr task in this path, because if it is a cmd task the fail_command call will handle this and if it is mgmt task then the flush of the mgmt queues will handle that. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] iscsi class: remove host no argument from session creation calloutMike Christie2009-03-135-13/+8
| | | | | | | | | | We do not need to have llds set the host no for the session's parent, because we know the session's parent is going to be the host. This removes it from the session creation callback and converts the drivers. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] libiscsi: pass session failure a session structMike Christie2009-03-132-4/+3
| | | | | | | | | | The api for conn and session failures is akward because one takes a conn from the lib and one takes a session from the class. This syncs up the interfaces to use structs from the lib. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] iscsi lib: remove qdepth param from iscsi host allocationMike Christie2009-03-135-13/+10
| | | | | | | | | | | | | The qdepth setting was useful when we needed libiscsi to verify the setting. Now we just need to make sure if older tools passed in zero then we need to set some default. So this patch just has us use the sht->cmd_per_lun or if for LLD does a host per session then we can set it on per host basis. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] iscsi lib: have lib create work queue for transmitting IOMike Christie2009-03-137-16/+48
| | | | | | | | | | | We were using the shost work queue which ended up being a little akward since all iscsi hosts need a thread for scanning, but only drivers hooked into libiscsi need a workqueue for transmitting. So this patch moves the xmit workqueue to the lib. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] iscsi class: fix lock dep warning on logoutMike Christie2009-03-132-34/+6
| | | | | | | | | | | We never should hit the lock up that is spit out when lock dep is on and we logout. But we have been using the shost work queue in a odd way. This patch has us use the work queue for scanning instead of creating our own, and this ends up also killing the lock dep warnings. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] libiscsi: don't cap queue depth in iscsi modulesMike Christie2009-03-134-13/+5
| | | | | | | | | | There is no need to cap the queue depth in the modules. We set this in userspace and can do that there. For performance testing with ram based targets, this is helpful since we can have very high queue depths. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] iscsi_tcp: replace scsi_debug/tcp_debug logging with iscsi conn loggingMike Christie2009-03-131-23/+34
| | | | | | | | | This makes the logging a compile time option and replaces the tcp_debug macro with a iscsi connection one that prints out a driver model id prefix. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] libiscsi_tcp: replace tcp_debug/scsi_debug logging with session/conn ↵Mike Christie2009-03-131-60/+62
| | | | | | | | | | | logging This makes the logging a compile time option and replaces the scsi_debug and tcp_debug macro with session and connection ones that print out a driver model id prefix. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] libiscsi: replace scsi_debug logging with session/conn loggingMike Christie2009-03-132-68/+103
| | | | | | | | | This makes the logging a compile time option and replaces the scsi_debug macro with session and connection ones that print out a driver model id prefix. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] iser: have iser use its own loggingMike Christie2009-03-131-5/+5
| | | | | | | | iser has its own logging inrfastrucutre. Convert it to use it instead of libiscsi. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] iscsi tcp: bidi capablePete Wyckoff2009-03-131-0/+7
| | | | | | | | | | | Mark iscsi_tcp as being capable of bidirectional transfers. The bsg interface checks this bit before attempting any bidirectional commands. Signed-off-by: Pete Wyckoff <pw@padd.com> Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] libiscsi: fix iscsi pool error pathJean Delvare2009-03-131-3/+2
| | | | | | | | | | | | | | Memory freeing in iscsi_pool_free() looks wrong to me. Either q->pool can be NULL and this should be tested before dereferencing it, or it can't be NULL and it shouldn't be tested at all. As far as I can see, the only case where q->pool is NULL is on early error in iscsi_pool_init(). One possible way to fix the bug is thus to not call iscsi_pool_free() in this case (nothing needs to be freed anyway) and then we can get rid of the q->pool check. Signed-off-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] fcoe: fcoe fc crc offload indication by skb->ip_summedYi Zou2009-03-131-1/+1
| | | | | | | | If LLD supports FCCRC offload, it should set ip_summed to be CHECKSUM_UNNECESSARY so we don't have to do CRC check again. Signed-off-by: Yi Zou <yi.zou@intel.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] fcoe: add support to FCoE offload support in fcoe_sw through net_deviceYi Zou2009-03-131-0/+38
| | | | | | | | This adds implementation of ddp_setup()/ddp_done() in fcoe_sw for its fcoe_sw_libfc_fcn_templ. Signed-off-by: Yi Zou <yi.zou@intel.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] libfc: add support of large receive offload by ddp in fc_fcpYi Zou2009-03-135-37/+95
| | | | | | | | | | | | | | | | When LLD supports direct data placement (ddp) for large receive of an scsi i/o coming into fc_fcp, we call into libfc_function_template's ddp_setup() to prepare for a ddp of large receive for this read I/O. When I/O is complete, we call the corresponding ddp_done() to get the length of data ddped as well as to let LLD do clean up. fc_fcp_ddp_setup()/fc_fcp_ddp_done() are added to setup and complete a ddped read I/O described by the given fc_fcp_pkt. They would call into corresponding ddp_setup/ddp_done implemented by the fcoe layer. Eventually, fcoe layer calls into LLD's ddp_setup/ddp_done provided through net_device Signed-off-by: Yi Zou <yi.zou@intel.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] fcoe: add support to large send by gso through net_device for fcoe_swYi Zou2009-03-131-1/+11
| | | | | | | Change fcoe_xmit to setup gso for LLD LSO offload as well as CRC offload Signed-off-by: Yi Zou <yi.zou@intel.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] libfc: use lso_max for sequence offloadYi Zou2009-03-131-1/+7
| | | | | | | | | Make sure for large send is supported by LLD in outgoing FCP data, we are only sending the lso_max a time in one single large send, since that is what supported by LLD. Signed-off-by: Yi Zou <yi.zou@intel.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] fcoe, libfc: check offload features from LLD through netdevYi Zou2009-03-132-1/+29
| | | | | | | | | | | | This checks if net_devices supports FCoE offload ops in netdev_ops and it if it does, then sets up the corresponding flags in the associated fc_lport. For large send offload, the maximum length supported in one large send is now described by the added lso_max in fc_lport, which is setup initially from netdev->gso_max_size. Signed-off-by: Yi Zou <yi.zou@intel.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] net: add FCoE offload support through net_deviceYi Zou2009-03-131-0/+13
| | | | | | | | | | This adds support to provide Fiber Channel over Ethernet (FCoE) offload through net_device's net_device_ops struct. The offload through net_device for FCoE is enabled in kernel as built-in or module driver. Signed-off-by: Yi Zou <yi.zou@intel.com> Acked-by: David Miller <davem@davemloft.net> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] net: add NETIF_F_FCOE_CRC to can_checksum_protocolYi Zou2009-03-131-1/+3
| | | | | | | | Add FC CRC offload check for ETH_P_FCOE. Signed-off-by: Yi Zou <yi.zou@intel.com> Acked-by: David Miller <davem@davemloft.net> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] net: define feature flags for FCoE offloadsChris Leech2009-03-132-0/+5
| | | | | | | | | Define feature flags for FCoE offloads. Signed-off-by: Chris Leech <christopher.leech@intel.com> Signed-off-by: Yi Zou <yi.zou@intel.com> Acked-by: David Miller <davem@davemloft.net> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] net: reclaim 8 upper bits of the netdev->features from GSOChris Leech2009-03-132-2/+2
| | | | | | | | | Reclaim 8 upper bits of netdev->features from GSO. Signed-off-by: Chris Leech <christopher.leech@intel.com> Signed-off-by: Yi Zou <yi.zou@intel.com> Acked-by: David Miller <davem@davemloft.net> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] net, fcoe: add ETH_P_FCOE for Fibre Channel over Ethernet (FCoE)Yi Zou2009-03-133-8/+2
| | | | | | | | | | This adds eth type ETH_P_FCOE for Fibre Channel over Ethernet (FCoE), consequently, the ETH_P_FCOE from fc_fcoe.h and fcoe skb->protocol is not set as ETH_P_FCOE. Signed-off-by: Yi Zou <yi.zou@intel.com> Acked-by: David Miller <davem@davemloft.net> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] scsi_dh_rdac: Retry mode select for NO_SENSE, ABORTED_COMMAND, ↵Chauhan, Vijay2009-03-121-13/+25
| | | | | | | | | | | | | UNIT_ATTENTION, NOT_READY(02/04/01) This patch is to add retry for mode select if mode select command is returned with sense NO_SENSE, UNIT_ATTENTION, ABORTED_COMMAND, NOT_READY(02/04/01). This patch reorganise the sense keys from if-else to switch-case format for better maintainability. Signed-off-by: Vijay Chauhan <vijay.chauhan@lsi.com> Acked-by: Chandra Seetharaman <sekharan@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] zfcp: Report fc_host_port_type as NPIVChristof Schmitt2009-03-121-2/+3
| | | | | | | | | | Report the fc_host_port_type as FC_PORTTYPE_NPIV when the subchannel is running in NPIV mode. This allows to see the correct type with lsscsi -H -t --list Acked-by: Swen Schillig <swen@vnet.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] zfcp: Ensure all work is cancelled on adapter dequeueSwen Schillig2009-03-123-4/+8
| | | | | | | | | | | | A scheduled work might still be pending, running while the adapter is in progress to get dequeued from the system. This can lead to an invalid pointer dereference (Oops). Once the adpater is set online again, ensure the nameserver environment is initialized to the appropriate values again. Signed-off-by: Swen Schillig <swen@vnet.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] zfcp: fix queue, scheduled work processing.Swen Schillig2009-03-122-3/+8
| | | | | | | | | | | Ensure the refcounting is correct even if we were not able to schedule a work. In addition we have to make sure no scheduled work is pending while we're dequeing the adapter from the systems environment. Signed-off-by: Swen Schillig <swen@vnet.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] zfcp: erp failed status bit will not be setMartin Petermann2009-03-121-1/+0
| | | | | | | | | | | It will not be necessary to set the erp failed status bit in case a SCSI device is removed by the SCSI mid layer. In the case a SCSI device is unavailable for a short time (15 to 20 seconds) a FCP unit will not get on-line again. Signed-off-by: Martin Petermann <martin@linux.vnet.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] zfcp: Block FC transport rports early on errorsChristof Schmitt2009-03-127-56/+157
| | | | | | | | | | | | | | | | | | | Use the I/O blocking mechanism in the FC transport class to allow faster failovers for multipathing: - Call fc_remote_port_delete early to set the rport to BLOCKED. - Check the rport status in queuecommand with fc_remote_portchkready to no longer accept new I/O for this port and fail the I/O with the appropriate scsi_cmnd result. - Implement the terminate_rport_io handler to abort all pending I/O requests - Return SCSI commands with DID_TRANSPORT_DISRUPTED while erp is running. - When updating the remote port status, check for late changes and update the remote ports status accordingly. Acked-by: Swen Schillig <swen@vnet.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] zfcp: incorrect reaction on incoming RSCNSwen Schillig2009-03-122-15/+7
| | | | | | | | | | After an error condition resolved a remote storage port was never re-opened. The incoming RSCN was not processed accordingly due to a misinterpreted status flag / return value combination. Signed-off-by: Swen Schillig <swen@vnet.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] zfcp: Remove PCI flagChristof Schmitt2009-03-122-22/+3
| | | | | | | | | | | The usage of the PCI flag to trigger interrupts is optional. Even without setting the flag, qdio still receives interrupts to continue working on the queue. Remove the PCI flag from zfcp, it is not necessary. Acked-by: Swen Schillig <swen@vnet.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] zfcp: replace current ERP logging with a more convenient versionSwen Schillig2009-03-1211-356/+215
| | | | | | | | | | | | | | | | | | | The current number based id ERP logging is replaced by a string based tag version. The benefit is an easier location of the code in question and the removal of the lengthy array referencing the individual messages. The string (7 bytes) based version does not use more space since those bytes were "used" anyway due to the alignment of the structure. The encoding of the 7 byte string is as follows [0-1] = filename [2-5] = task/function [6] = section Due to the character of this string (fixed length) a string termination is not required here. Signed-off-by: Swen Schillig <swen@vnet.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] zfcp: prevent adapter close on initial adapter openSwen Schillig2009-03-121-35/+34
| | | | | | | | | | | An adapter close was always performed whether it was required, (e.g. in an error scenario) or not (e.g. initial open). This patch is changing the process in only doing an adapter close when it is required. Signed-off-by: Swen Schillig <swen@vnet.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] zfcp: remove undefined subtype for status read responseSwen Schillig2009-03-123-13/+2
| | | | | | | | | | The status read response FSF_STATUS_READ_SUB_ERROR_PORT is not defined in the specs and therefore not valid. All occurrences are removed from the code. Signed-off-by: Swen Schillig <swen@vnet.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] zfcp: Send ELS ADISC from workqueueChristof Schmitt2009-03-125-22/+27
| | | | | | | | | | | | | Issue ELS ADISC requests from workqueue. This allows the link test request to be sent when the request queue is full due to I/O load for other remote ports. It also simplifies request queue locking, zfcp_fsf_send_fcp_command_task is now the only function that has interrupts disabled from the caller. This is also a prereq for the FC passthrough support that issues ELS requests from userspace. Acked-by: Swen Schillig <swen@vnet.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] zfcp: Improve reliability of SCSI eh handlers in zfcpChristof Schmitt2009-03-124-99/+78
| | | | | | | | | | | | | | When the SCSI midlayer is running error recovery, the low-level error recovery in zfcp could be running and preventing the SCSI midlayer to issue error recovery requests. To avoid unnecessary error recovery escalation, wait for the zfcp erp to finish and retry if necessary. While reworking the SCSI eh handlers, alsa cleanup the code and simplify the interface from zfcp_scsi to the fsf layer. Acked-by: Swen Schillig <swen@vnet.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] zfcp: Wait for free SBALs when possibleChristof Schmitt2009-03-121-9/+9
| | | | | | | | | For calls from zfcp erp, scsi_eh and sysfs switch the calls issuing FSF requests to zfcp_fsf_req_sbal_get to wait for free SBALs. Acked-by: Swen Schillig <swen@vnet.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* [SCSI] zfcp: Only increment req_id for successfully issued requestsChristof Schmitt2009-03-121-1/+2
| | | | | | | | | Only increment the req_id for successfully issued requests. This avoids some confusion when debugging issued fsf requests. Acked-by: Swen Schillig <swen@vnet.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-24 18:38:33 +0000