- 18 Feb, 2011 12 commits
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James Smart authored
- Add the driver debugfs framework for supporting debugfs read and write operations, and iDiag command structure. - Add read and write to SLI4 device PCI config space registers. - Add the driver support of debugfs PCI config space register bits set/clear methods to the provided bitmask. - Add iDiag driver support for SLI4 device queue diagnostic. Signed-off-by:
Alex Iannicelli <alex.iannicelli@emulex.com> Signed-off-by:
James Smart <james.smart@emulex.com> Signed-off-by:
James Bottomley <James.Bottomley@suse.de>
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James Smart authored
- Make link speed not supported by port message an error message. - Add support for new SLI failure codes add sysfs parameter to reflect the security setting and current state. - Add all lpfc module parameters to the /sys/modules/lpfc/parameters directory. [jejb: fix up compile failure] Signed-off-by:
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James Smart authored
FC Discovery changes - Treat received PLOGI while logged in as a relogin (unregister and reregister). - Added a timer to delay Nport discovery when clean bit is cleared and Fabric portname/nodename/FCID is changed. - Invalidate Port's DID when receiving PLOGI from p2p port with CONFIG_PORT mailbox command. Signed-off-by:
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James Smart authored
RRQ Implementation fixes - Added checks to prevent a call to findnode_did in clr_active_rrq - Added the del_sync_timer call for the rrq_tmr to the stop_hba_timers routine. - Added a check in __lpfc_set_active_rrq for the driver unloading to prevent adding an rrq when the driver is being removed. - Add code to scsi_iocb_cmpl to check for the remote stop and add the rrq. - Added the same check to els retry. - Added code to compare the source did in the els rrq to the vports did and chose the right exchange ID. - Initialize the start_cmd pointer to indicate when we have looped through all of the scsi buffers. - Remove the need for the lock around the clearing of the active bit in the rrq. - Added code to clean the els and fcp xri aborted list and remove the all of the RRQs for a deleted vport. Signed-off-by:
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James Smart authored
Critical Errors: - Correctly handle non-zero return lpfc_workq_post_event and return ENOMEM - Save the irq level when locking the host_lock in lpfc_findnode_did Bug Fixes: - Adjust payload_length and request_length for sli4_config mailbox commands. - Add the freed sgl/XRI to the tail of the list rather than to the head. - Set the FC_VPORT_NEEDS_INIT_VPI on vport deletes and check it before issuing a fdisc on an els retry. - Only call lpfc_hba_init_link() if phba->cfg_suppress_link_up is LPFC_INITIALIZE_LINK. - Add support for SLI-4 Performance Hints Signed-off-by:
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Dan Carpenter authored
'!' has higher precedence than '&'. CFGTBL_ChangeReq is 0x1 so the original code is equivelent to if (!doorbell_value) {... Signed-off-by:Dan Carpenter <error27@gmail.com> Acked-by:
Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by:
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Stephen M. Cameron authored
We can get completions left over from before the attempted reset which will interfere with the kdump. Better to just not make the attempt in that case. Signed-off-by:
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Stephen M. Cameron authored
Controller will transfer only 32-bits on completion if it knows we are only using 32-bit tags. Also, some newer controllers apparently (and erroneously) require that we only use 32-bit tags, and that we inform the controller of this. Signed-off-by:
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Stephen M. Cameron authored
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Stephen M. Cameron authored
It's not enough to simple avoid putting the board into performant mode, as we have to set up the interrupts differently, etc. When I originally tested this module parameter, I tested it incorrectly without realizing it, and the driver was running in performant mode the whole time unbeknownst to me. Signed-off-by:
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Stephen M. Cameron authored
Driver's internal queues should be FIFO, not LIFO. This is a port of an almost identical patch from cciss by Jens Axboe. Signed-off-by:
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Kleber Sacilotto de Souza authored
In a multiple configuration change scenario a remove notification can be followed by an immediate add notification for the same device, which will cause the device to be removed but never added back. This patch fixes the problem by ensuring that in such situations the device will be added back. Signed-off-by:
Kleber Sacilotto de Souza <klebers@linux.vnet.ibm.com> Acked-by:
Brian King <brking@linux.vnet.ibm.com> Signed-off-by:
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- 13 Feb, 2011 5 commits
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James Bottomley authored
The conversion is quite complex given that the libata new error handler has to be hooked into the current libsas timeout and error handling. The way this is done is to process all the failed commands via libsas first, but if they have no underlying sas task (and they're on a sata device) assume they are destined for the libata error handler and send them accordingly. Finally, activate the port recovery of the libata error handler for each port known to the host. This is somewhat suboptimal, since that port may not need recovering, but given the current architecture of the libata error handler, it's the only way; and the spurious activation is harmless. Signed-off-by: -
James Bottomley authored
Right at the moment, the libata error handler is incredibly monolithic. This makes it impossible to use from composite drivers like libsas and ipr which have to handle error themselves in the first instance. The essence of the change is to split the monolithic error handler into two components: one which handles a queue of ata commands for processing and the other which handles the back end of readying a port. This allows the upper error handler fine grained control in calling libsas functions (and making sure they only get called for ATA commands whose lower errors have been fixed up). Cc: Tejun Heo <tj@kernel.org> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by: -
James Bottomley authored
The SCSI host eh_cmd_q should be protected by the host lock (not the port lock). This probably doesn't matter that much at the moment, since we try to serialise the add and eh pieces, but it might matter in future for more convenient error handling. Plus this switches libata to the standard eh pattern where you lock, remove from the cmd queue to a local list and unlock and then operate on the local list. Cc: Tejun Heo <tj@kernel.org> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by: -
James Bottomley authored
For historical reasons, libsas uses the scsi host lock as the ata port lock, and libata always uses the ata host. For the old eh, this was largely irrelevant since the two locks were never mixed inside the code. However, the new eh has a case where it nests acquisition of the host lock inside the port lock (this does look rather deadlock prone). Obviously this would be an instant deadlock if the port lock were the host lock, so switch the libsas paths to use the ata host lock as well. Cc: Tejun Heo <tj@kernel.org> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by: -
James Bottomley authored
The function ata_sas_port_init() has always really done its own thing. However, as a precursor to moving to the libata new eh, it has to be properly using the standard libata scan paths. This means separating the current libata scan paths into pieces which can be shared with libsas and pieces which cant (really just the async call and the host scan). Cc: Tejun Heo <tj@kernel.org> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by:
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- 12 Feb, 2011 23 commits
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Moger, Babu authored
Adding MODULE_VERSION for scsi_dh_rdac. This will be helpful sometimes to get the code level without looking at the code. Signed-off-by:
Babu Moger <babu.moger@lsi.com> Signed-off-by:
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Hillf Danton authored
instead of doing sizeof(struct X) it's better to do sizeof(*v) where v is the variable pointing to struct X. Signed-off-by:
Hillf Danton <dhillf@gmail.com> Signed-off-by:
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Moger, Babu authored
During one of our testing, we noticed that mode select command sent from the host did not have the lun_table updated. Problem is root caused to the way lun table is updated. Lun table update was done after the call to blk_rq_map_kern is made. This was causing problem because kernel uses bounce buffer(bio_copy_kern) if the address is not aligned. The command buffer updated after the call(blk_rq_map_kern) was not going on the wire. Moved the code to update the lun_table before the call to fix the problem. Signed-off-by:
Somasundaram Krishnasamy <Somasundaram.Krishnasamy@lsi.com> Signed-off-by:
Yanling Qi <Yanling.Qi@lsi.com> Signed-off-by:
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Kashyap, Desai authored
Bus reset is not required for SAS Controller. It is valid for mptspi and mptfc, but for mptsas it is not required. It is an extra work for Error handling escallation for mptsas. Removing bus reset from error handling will eventually speedup Error handling for SAS controller. Signed-off-by:
Kashyap Desai <kashyap.desai@lsi.com> Signed-off-by:
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Kashyap, Desai authored
SAS1.0 Controller was not able to detect SAS2.0 Expanders due to Link RATE detection was limited to 1.5 Gbps and 3.0 Gbps for SAS1 controllers. Added detection for 6.0 Gbps link. Now, user can mix-up 6.0 Gpbs links with SAS1.0 controller. e.g SAS1.0 HBA <----> SAS2.0 Expander <------> SAS2.0 Expander <--------> SAS1.0 Drive. Signed-off-by:
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Bhanu Prakash Gollapudi authored
To facilitate LLDDs to reuse the code, skb queue related functions are moved to libfcoe, so that both fcoe and bnx2fc drivers can use them. The common structures fcoe_port, fcoe_percpu_s are moved to libfcoe. fcoe_port will now have an opaque pointer that points to corresponding driver's interface structure. Also, fcoe_start_io and fcoe_fc_crc are moved to libfcoe. As part of this change, fixed fcoe_start_io to return ENOMEM if skb_clone fails. Signed-off-by:
Bhanu Prakash Gollapudi <bprakash@broadcom.com> Signed-off-by:
Robert Love <robert.w.love@intel.com> Signed-off-by:
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Tejun Heo authored
fcoe uses the system_wq to destroy ports and the work items need to be flushed before the driver is unloaded. As the work items free the containing data structure, they can't be flushed directly. The workqueue should be flushed instead. Also, the destruction works can be chained - ie. destruction of a port may lead to destruction of another port where the work item for the former queues the work for the latter. Currently, the depth of chain can be at most two and fcoe_exit() makes sure everything is complete by calling flush_scheduled_work() twice. With commit c8efcc25 (workqueue: allow chained queueing during destruction), destroy_workqueue() can take care of chained works on workqueue destruction. Add and use fcoe_wq instead. Simply destroying fcoe_wq on driver unload takes care of flushing. Signed-off-by:
Tejun Heo <tj@kernel.org> Signed-off-by:
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Bhanu Prakash Gollapudi authored
This patch enables LLD to listen to rport events and perform LLD specific operations based on the rport event. This patch also stores sp_features and spp_type in rdata for further reference by LLD. Signed-off-by:
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Kiran Patil authored
Problem: From initaitor machine, when queried role of target (other end of connection), it is "initiator", hence SCSI-ml doesn't send any LUN Inquiry commands. Fix: If there is a registered target for FC_TYPE_FCP, extend lport's params (capability) to be target as well, By default lport params are INITIATOR only. Having this fix, caused initiator to send SCSI LUN inquiry command to target. Signed-off-by:
Kiran Patil <kiran.patil@intel.com> Signed-off-by:
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Yi Zou authored
Remove the existing sysfs entry points of the fcoe.ko module parameters that are used to create/destroy/enable/disable an FCoE instance, rather, use the newly added fcoe transport code to attach itself as an FCoE transport provider when fcoe.ko gets loaded. There is no functionality change on the logic of fcoe interacts with upper libfc and lower netdev. The fcoe transport only acts as thin layer to provide a unified interface for all fcoe transport providers so all FCoE instances on any network interfaces from all vendors can be managed through the same Open-FCoE.org's user space tool package, which also has full DCB support. Signed-off-by:
Yi Zou <yi.zou@intel.com> Signed-off-by:
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Yi Zou authored
Prepare the fcoe to convert it to use the newly added fcoe transport, making it as the default fcoe transport provider for libfcoe. This patch is to rename some of the variables to avoid any confusing names later as now there are several transports in the same file. Signed-off-by:
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Yi Zou authored
Now we can include the fcoe_transport.c to the build of the kernel libfcoe module. Move the module information to fcoe_transport, and it will have all the module parameters later for the create/destroy/enable/disable of an FCoE instance. Signed-off-by:
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Yi Zou authored
The existing libfcoe.c is mostly for FIP support, rename it to reflect that fact and so we can add fcoe_transport.c to the make file to include both into the libfcoe kernel module. [ Minor modifications by Robert Love converting a few "__attribute__((packed))" modifiers to "__packed" to remove new checkpatch.pl WARNINGS ] Signed-off-by:
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Yi Zou authored
Add the new fcoe_transport.c file that implements basic fcoe transport interface. Eventually, the sysfs entries to create/destroy/enable/disable an FCoE instance will be coming to the fcoe transport layer, who does a look-up to find the corresponding transport provide and pass the corresponding action over to the identified provider. The fcoe.ko will become the default fcoe transport provider that can support FCoE on any given netdev interfaces, as the Open-FCoE.org's default software FCoE HBA solution. Any vendor specific FCoE HBA driver that is built on top of Open-FCoE's kernel stack of libfc & libfcoe as well as the user land tool of fcoe-utils can easily plug-in and start running FCoE on their network interfaces. The fcoe.ko will be converted to act as the default provider if no vendor specific transport provider is found, as it is always added to the very end of the list of attached transports. Signed-off-by:
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Yi Zou authored
add the fcoe_transport struct to the common libfcoe.h header so all fcoe transport provides can use it to attach itself as an fcoe transport. This is the header part, and the next patch will be the transport code itself. Signed-off-by:
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Yi Zou authored
libfcoe kernel module debug macros will used by the fcoe transport code as well when later it gets added. Signed-off-by:
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Kiran Patil authored
Problem: In case of exchange responder case, EMA selection was defaulted to the last EMA from EMA list (lport.ema_list). If exchange ID is selected from offload pool and not setup DDP, resulting into incorrect selection of EMA, and eventually dropping the packet because unable to find exchange. Fix: Enhanced the exchange ID selection (depending upon request type and exchange responder) Made necessary enhancement in EMA selection algorithm. Signed-off-by:
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Joe Eykholt authored
Target modules using lport->tt.seq_assign() get a hold on the exchange but have no way of releasing it. Add that. Signed-off-by:
Joe Eykholt <jeykholt@cisco.com> Signed-off-by:
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Robert Love authored
This patch removes the use of the Scsi_Host's host_lock within fc_queuecommand. It also removes the DEF_SCSI_QCMD usage so that libfc has fully moved on to the new queuecommand interface. Signed-off-by:
Ross Brattain <ross.b.brattain@intel.com> Reviewed-by:
Nicholas A. Bellinger <nab@linux-iscsi.org> Signed-off-by:
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Joe Eykholt authored
When sending an outgoing PRLI as an initiator, get the parameters from registered providers so that they all get a chance to decide on roles. The passive provider is called last, and could override the initiator role. Signed-off-by:
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Joe Eykholt authored
When an SCST provider is registered, it needs to know what local ports are available for configuration as targets. Add a notifier chain that is invoked when any local port that is added or deleted. Maintain a global list of local ports and add an interator function that calls a given function for every existing local port. This is used when first loading a provider. Signed-off-by:
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Joe Eykholt authored
The target provider needs a per-instance lookup table or other way to lookup sessions quickly without going through a linear list or serializing too much. Add a simple void * array indexed by FC-4 type to the fc_lport. Signed-off-by:
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Joe Eykholt authored
Add a method for setting handler for incoming exchange. For multi-sequence exchanges, this allows the target driver to add a response handler for handling subsequent sequences, and exchange manager resets. The new function is called fc_seq_set_resp(). Signed-off-by:
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