- 05 12月, 2009 40 次提交
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由 Chris Leech 提交于
Right now it's exactly the same as the physical port template, and there is no way to create a port on anything other than the netdev. When the vport_create entry point gets hooked up it will create lports on top of vport devices, which will use this. Rename scsi_transport_fcoe_sw to fcoe_transport_template to be more clear with naming now that there are two templates. Signed-off-by: NChris Leech <christopher.leech@intel.com> Signed-off-by: NRobert Love <robert.w.love@intel.com> Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>
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由 Chris Leech 提交于
The FIP code in libfcoe needed several changes to support NPIV 1) dst_src_addr needs to be managed per-n_port-ID for FPMA fabrics with NPIV enabled. Managing the MAC address is now handled in fcoe, with some slight changes to update_mac() and a new get_src_addr() function pointer. 2) The libfc elsct_send() hook is used to setup FCoE specific response handlers for FIP encapsulated ELS exchanges. This lets the FCoE specific handling know which VN_Port the exchange is for, and doesn't require tracking OX_IDs. It might be possible to roll back to the full FIP frame in these, but for now I've just stashed the contents of the MAC address descriptor in the skb context block for later use. Also, because fcoe_elsct_send() just passes control on to fc_elsct_send(), all transmits still come through the normal frame_send() path. 3) The NPIV changes added a mutex hold in the keep alive sending, the lport mutex is protecting the vport list. We can't take a mutex from a timer, so move the FIP keep alive logic to the link work struct. Signed-off-by: NChris Leech <christopher.leech@intel.com> Signed-off-by: NRobert Love <robert.w.love@intel.com> Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>
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由 Chris Leech 提交于
Add FDISC ELS handling to libfc and libfcoe, treat it the same as FLOGI where appropriate. Add checking for NPIV support in the FLOGI LS_ACC service parameters. Signed-off-by: NChris Leech <christopher.leech@intel.com> Signed-off-by: NRobert Love <robert.w.love@intel.com> Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>
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由 Chris Leech 提交于
NPIV vports are managed in libfc by changing their virtual link state when the parent N_Ports internal state changes. The vport link is only online when the N_Port is in a ready state (logged into the fabric). vport_state is updated as needed in this patch as well, currently the states LINKDOWN, INITIALIZING, ACTIVE, DSIABLED, and NO_FABRIC_SUPP are used. This also changes the fc_host port_state handling to differentiate between LINKDOWN and OFFLINE. Signed-off-by: NChris Leech <christopher.leech@intel.com> Signed-off-by: NRobert Love <robert.w.love@intel.com> Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>
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由 Chris Leech 提交于
Adds a function to create a new VN_Port instances, which share the EM list with the N_Port, VN_Port lookup by fabric ID when responding to a new request (otherwise the exchange lookup from the N_Ports EM list is trusted to return an exchange with a cached lport value for the correct VN_Port), a pointer to a fc_vport structure for VN_Ports, and flags to indicate if an N_Port supports NPIV and if the switch/fabric allows it. Signed-off-by: NChris Leech <christopher.leech@intel.com> Signed-off-by: NRobert Love <robert.w.love@intel.com> Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>
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由 Chris Leech 提交于
I'd like to keep basic initialization together with allocation, which means this can't just be a tail-call to scsi_host_alloc. This is needed to create a generic libfc host allocation routine for NPIV VN_Ports, which will share the exchange ID space (through sharing exchange manager structures) with the parent lport. In order to clone the exchange manager list when the lport is allocated, the list head must be initialized earlier. Also, update fnic to use the libfc_host_alloc so that later changes do not break it. (contribution by Joe Eykholt) Signed-off-by: NChris Leech <christopher.leech@intel.com> Signed-off-by: NJoe Eykholt <jeykholt@cisco.com> Signed-off-by: NRobert Love <robert.w.love@intel.com> Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>
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由 Robert Love 提交于
These routines are for the libfc kernel module and should be in the libfc .c file. Moving the libfc __init routine into fc_libfc.c caused the creation of the fc_setup_fcp() and fc_destroy_fcp() routines so that scsi_pkt_cachep was not exposed outside of fc_fcp.c. Signed-off-by: NRobert Love <robert.w.love@intel.com> Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>
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由 Robert Love 提交于
include/scsi/libfc.h is currently loaded with common code shared between libfc's sub-modules as well as shared between libfc and fcoe. Previous patches attempted to move out non-common code. This patch creates two files for common libfc routines that will not be shared with fcoe, fnic or any other LLDs. Signed-off-by: NRobert Love <robert.w.love@intel.com> Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>
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由 Robert Love 提交于
This function is never used, let's remove it. Signed-off-by: NRobert Love <robert.w.love@intel.com> Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>
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由 Robert Love 提交于
This patch moves all non-common routines and function prototypes out of libfc.h and into the appropriate .c files. It makes these routines 'static' when necessary and removes any unnecessary EXPORT_SYMBOL statements. A result of moving the fc_exch_seq_send, fc_seq_els_rsp_send, fc_exch_alloc and fc_seq_start_next prototypes out of libfc.h is that they were no longer being imported into fc_exch.c when libfc.h was included. This caused errors where routines in fc_exch.c were looking for undefined symbols. To fix this this patch reorganizes fc_seq_alloc, fc_seq_start_next and fc_seq_start_next_locked. This move also made it so that fc_seq_start_next_locked did not need to be prototyped at the top of fc_exch.c. Signed-off-by: NRobert Love <robert.w.love@intel.com> Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>
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由 Robert Love 提交于
The maximum number of LUNs was far too low. This value is what most other FC HBAs are using. Signed-off-by: NRobert Love <robert.w.love@intel.com> Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>
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由 Abhijeet Joglekar 提交于
The OS interrupt vectors were getting allocated before the interrupt resources were mapped from hardware. For Legacy interrupts, since they are shared with other devices, as soon as an interrupt is registered with the OS, it can fire while the fnic isr resource is still unmapped. This can cause crash because of access to unmapped resources. For MSIX and MSI, since interrupts are not shared with other devices, this problem didnt happen, because the interrupt is enabled as the last step before returning from _probe. For Legacy however, since the interrupt is shared, the handler can be called as soon as it is registered. Solution is to register interrupt handlers with OS as last step before enabling device interrupts. Signed-off-by: NAbhijeet Joglekar <abjoglek@cisco.com> Signed-off-by: NRobert Love <robert.w.love@intel.com> Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>
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由 Christof Schmitt 提交于
Move the duplicated code from FC LLDs to SCSI FC transport class. Acked-by: NJames Smart <james.smart@emulex.com> Acked-by: NGiridhar Malavali <giridhar.malavali@qlogic.com> Acked-by: NAbhijeet Joglekar <abjoglek@cisco.com> Signed-off-by: NChristof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>
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由 Jiri Slaby 提交于
Stanse found a potential NULL dereference in scsi_kill_request. Instead of triggering BUG() in 'if (unlikely(cmd == NULL))' branch, the kernel will Oops earlier on cmd dereference. Move the dereferences after the if. Signed-off-by: NJiri Slaby <jirislaby@gmail.com> Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>
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由 adam radford 提交于
[jejb: fix up for new queue depth code] Signed-off-by: NAdam Radford <aradford@gmail.com> Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>
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由 Douglas Gilbert 提交于
While testing scsi_debug with these patches I found a problem with the Block Limits VPD page function. The length returned by the inquiry_evpd_b0() function was too short. A patch to fix that and a cosmetic change (that the form factor of scsi_debug is less than 1.8 inches) is attached. Signed-off-by: NDouglas Gilbert <dgilbert@interlog.com> Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>
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由 Alok Kataria 提交于
This is a driver for VMware's paravirtualized SCSI device, which should improve disk performance for guests running under control of VMware hypervisors that support such devices. Signed-off-by: NAlok N Kataria <akataria@vmware.com> Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>
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由 Chandra Seetharaman 提交于
Make the activate function asynchronous by using blk_execute_rq_nowait() Signed-off-by: NChandra Seetharaman <sekharan@us.ibm.com> Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>
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由 Chandra Seetharaman 提交于
Make the activate function asynchronous by using blk_execute_rq_nowait() Signed-off-by: NChandra Seetharaman <sekharan@us.ibm.com> Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>
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由 Chandra Seetharaman 提交于
Batch up MODE_SELECT in rdac device handler. LSI RDAC storage has the capability of handling mode selects for multiple luns in a same command. Make use of that ability to send as few MODE SELECTs as possible to the storage controller as possible. This patch creates a work queue and queues up activate requests when a MODE SELECT is sent down the wire. When that MODE SELECT completes, it compiles queued up activate requests for multiple luns into a single MODE SELECT. This reduces the time to do failover/failback of large number of LUNS. Signed-off-by: NBabu Moger <babu.moger@lsi.com> Signed-off-by: NChandra Seetharaman <sekharan@us.ibm.com> Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>
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由 Chandra Seetharaman 提交于
Make scsi_dh_activate() function asynchronous, by taking in two additional parameters, one is the callback function and the other is the data to call the callback function with. Signed-off-by: NChandra Seetharaman <sekharan@us.ibm.com> Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>
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由 Christof Schmitt 提交于
Adapt the change_queue_depth callback in zfcp for the new reason parameter. Simply pass each call back to the SCSI midlayer, there are no resource adjustments necessary for zfcp. Signed-off-by: NChristof Schmitt <christof.schmitt@de.ibm.com> Removes check for (depth <= default_depth) in case of SCSI_QDEPTH_RAMP_UP call back, not needed after added max_queue_depth per sdev. Signed-off-by: NVasu Dev <vasu.dev@intel.com> Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>
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由 Vasu Dev 提交于
Adjust queue_depth on fc_change_queue_depth call back with reason SCSI_QDEPTH_RAMP_UP, no additional resource adjustments necessary for libfc. Signed-off-by: NVasu Dev <vasu.dev@intel.com> Acked-by: NRobert Love <robert.w.love@intel.com> Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>
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由 Vasu Dev 提交于
Current FC HBA queue_depth ramp up code depends on last queue full time. The sdev already has last_queue_full_time field to track last queue full time but stored value is truncated by last four bits. So this patch updates last_queue_full_time without truncating last 4 bits to store full value and then updates its only current usages in scsi_track_queue_full to ignore last four bits to keep current usages same while also use this field in added ramp up code. Adds scsi_handle_queue_ramp_up to ramp up queue_depth on successful completion of IO. The scsi_handle_queue_ramp_up will do ramp up on all luns of a target, just same as ramp down done on all luns on a target. The ramp up is skipped in case the change_queue_depth is not supported by LLD or already reached to added max_queue_depth. Updates added max_queue_depth on every new update to default queue_depth value. The ramp up is also skipped if lapsed time since either last queue ramp up or down is less than LLD specified queue_ramp_up_period. Adds queue_ramp_up_period to sysfs but only if change_queue_depth is supported since ramp up and queue_ramp_up_period is needed only in case change_queue_depth is supported first. Initializes queue_ramp_up_period to 120HZ jiffies as initial default value, it is same as used in existing lpfc and qla2xxx. -v2 Combined all ramp code into this single patch. -v3 Moves max_queue_depth initialization after slave_configure is called from after slave_alloc calling done. Also adjusted max_queue_depth check to skip ramp up if current queue_depth is >= max_queue_depth. -v4 Changes sdev->queue_ramp_up_period unit to ms when using sysfs i/f to store or show its value. Signed-off-by: NVasu Dev <vasu.dev@intel.com> Tested-by: NChristof Schmitt <christof.schmitt@de.ibm.com> Tested-by: NGiridhar Malavali <giridhar.malavali@qlogic.com> Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>
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由 Vasu Dev 提交于
The cmd_per_lun value is used by scsi-ml as fall back lowest queue_depth value but in case of libfc cmd_per_lun is set to same value as max queue_depth = 32. So this patch reduces cmd_per_lun value to 3 and configures each lun with default max queue_depth 32 in fc_slave_alloc. Signed-off-by: NVasu Dev <vasu.dev@intel.com> Acked-by: NRobert Love <robert.w.love@intel.com> Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>
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由 Mike Christie 提交于
This converts the libfc using scsi_track_queue_full to track the queue full from the change_queue_depth callback. Signed-off-by: NMike Christie <michaelc@cs.wisc.edu> Signed-off-by: NVasu Dev <vasu.dev@intel.com> Acked-by: NRobert Love <robert.w.love@intel.com> Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>
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由 Mike Christie 提交于
This has scsi-ml call the change_queue_depth functions when we get a QUEUE_FULL. It will only change the queue depth if change_queue_depth is set because the LLD may have to modify some internal resources, so I thought this would be the safest route. Signed-off-by: NMike Christie <michaelc@cs.wisc.edu> -v2 Limits change_queue_depth to only all luns of target by adding channel check while iterating for all luns of Scsi_Host. This is same as currently qla2xxx FC HBA does on QUEUE_FULL event. Signed-off-by: NVasu Dev <vasu.dev@intel.com> Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>
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由 Mike Christie 提交于
This patch modifies scsi_host_template->change_queue_depth so that it takes an argument indicating why it is being called. This will be used so that if a LLD needs to do some extra processing when handling queue fulls or later ramp ups, it can do so. This is a simple port of the drivers setting a change_queue_depth callback. In the patch I just have these LLDs adjust the queue depth if the user was requesting it. Signed-off-by: NMike Christie <michaelc@cs.wisc.edu> [Vasu.Dev: v2 Also converted pmcraid_change_queue_depth and then verified all modules compile using "make allmodconfig" for any new build warnings on X86_64. Updated original description after combing two original patches from Mike to make this patch git bisectable.] Signed-off-by: NVasu Dev <vasu.dev@intel.com> [jejb: fixed up 53c700] Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>
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由 jack wang 提交于
This driver supports PMC-Sierra PCIe SAS/SATA 8x6G SPC 8001 chip based host adapters. Signed-off-by: NJack Wang <jack_wang@usish.com> Signed-off-by: NLindar Liu <lindar_liu@usish.com> Signed-off-by: NTom Peng <tom_peng@usish.com> Signed-off-by: NKevin Ao <aoqingyun@usish.com> Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>
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由 Jayamohan Kallickal 提交于
This patch adds support for ring based wrbs Signed-off-by: NJayamohan Kallickal <jayamohank@serverengines.com> Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>
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由 Jayamohan Kallickal 提交于
This patch enables msix for be2iscsi. It also enables use of mcc_rings for fw commands. Since the mcc eq creation is dependent on msix I am sending as one patch Signed-off-by: NJayamohan Kallickal <jayamohank@serverengines.com> Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>
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由 Joe Eykholt 提交于
Timer crashes were caused by freeing a struct fc_rport_priv with a timer pending, causing the timer facility list to be corrupted. This was during FC uplink flap tests with a lot of targets. After discovery, we were doing an PLOGI on an rdata that was in DELETE state but not yet removed from the lookup list. This moved the rdata from DELETE state to PLOGI state. If the PLOGI exchange allocation failed and needed to be retried, the timer scheduling could race with the free being done by fc_rport_work(). When fc_rport_login() is called on a rport in DELETE state, move it to a new state RESTART. In fc_rport_work, when handling a LOGO, STOPPED or FAILED event, look for restart state. In the RESTART case, don't take the rdata off the list and after the transport remote port is deleted and exchanges are reset, re-login to the remote port. Note that the new RESTART state also corrects a problem we had when re-discovering a port that had moved to DELETE state. In that case, a new rdata was created, but the old rdata would do an exchange manager reset affecting the FC_ID for both the new rdata and old rdata. With the new state, the new port isn't logged into until after any old exchanges are reset. Signed-off-by: NJoe Eykholt <jeykholt@cisco.com> Signed-off-by: NRobert Love <robert.w.love@intel.com> Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>
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由 Abhijeet Joglekar 提交于
Signed-off-by: NAbhijeet Joglekar <abjoglek@cisco.com> Signed-off-by: NRobert Love <robert.w.love@intel.com> Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>
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由 Abhijeet Joglekar 提交于
Signed-off-by: NAbhijeet Joglekar <abjoglek@cisco.com> Signed-off-by: NRobert Love <robert.w.love@intel.com> Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>
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由 Abhijeet Joglekar 提交于
Driver was processing a fixed max number of cq descriptors per ISR. For instance, for the SCSI IO queue, number of IOs processed per ISR were 8. If hardware writes 9 cq descriptors to the cq and generates an interrupt, driver would process only 8 descriptors and decrement the outstanding credit count by 8. Unless another interrupt event happens, the hw does not generate any additional interrupt. This results in the cq descriptor sitting in the queue without being procesed and can cause IO timeouts and aborts. Modify all ISR functions to process all queued cq descriptors in one shot. Since bulk of ELS frame processing is done in thread context and bulk of SCSI IO processing is done in soft ISR deferred context, the cycles spent in the ISR per cq descriptor is small. Signed-off-by: NHerman Lee <hermlee@cisco.com> Signed-off-by: NAbhijeet Joglekar <abjoglek@cisco.com> Signed-off-by: NRobert Love <robert.w.love@intel.com> Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>
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由 Chris Leech 提交于
I was running into several different panics under stress, which I traced down to a few different possible slab corruption issues in error handling paths. I have not yet looked into why these exchange sends fail, but with these fixes my test system is much more stable under stress than before. fc_elsct_send() could fail and either leave the passed in frame intact (failure in fc_ct/els_fill) or the frame could have been freed if the failure was is fc_exch_seq_send(). The caller had no way of knowing, and there was a potential double free in the error handling in fc_fcp_rec(). Make fc_elsct_send() always free the frame before returning, and remove the fc_frame_free() call in fc_fcp_rec(). While fc_exch_seq_send() did always consume the frame, there were double free bugs in the error handling of fc_fcp_cmd_send() and fc_fcp_srr() as well. Numerous calls to error handling routines (fc_disc_error(), fc_lport_error(), fc_rport_error_retry() ) were passing in a frame pointer that had already been freed in the case of an error. I have changed the call sites to pass in a NULL pointer, but there may be more appropriate error codes to use. Question: Why do these error routines take a frame pointer anyway? I understand passing in a pointer encoded error to the response handlers, but the error routines take no action on a valid pointer and should never be called that way. Signed-off-by: NChris Leech <christopher.leech@intel.com> Signed-off-by: NRobert Love <robert.w.love@intel.com> Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>
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由 Yi Zou 提交于
Calls ndo_fcoe_enabled() of the associated netdev upon creating the FCoE instance to make sure LLD has all necessary resources allocated and setup properly before passing FCoE traffic. Similarly, calls ndo_fcoe_disable() upon destroying the FCoE instance on the associated netdev to allow the LLD to release all allocated resources for FCoE. Signed-off-by: NYi Zou <yi.zou@intel.com> Signed-off-by: NRobert Love <robert.w.love@intel.com> Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>
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由 Yi Zou 提交于
In case of sequence offload, in fc_fcp_send_data(), the skb_fill_page_info() called may end up adding more frags to the skb_shinfo(fp_skb(fp))->frags[], exceeding SKB_MAX_FRAGS, this eventually corrupts the memory. I am adding the FR_FRAME_SG_LEN back, but as SKB_MAX_FRAGS -1, leaving 1 for our fcoe_eof_crc page. And send will be broken into multiple large sends if the frame already contains more frags than skb handle. Signed-off-by: NYi Zou <yi.zou@intel.com> Signed-off-by: NRobert Love <robert.w.love@intel.com> Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>
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由 Yi Zou 提交于
Add a define of FCOE_MTU as 2158 bytes and use FCOE_MTU when the LLD is found to support NETIF_F_FCOE_MTU. The lport->mfs is then calculated out of the 2158 FCOE_MTU. Otherwise, we stick with the netdev->mtu, i.e., LAN MTU. Also, change the notification on NETDEV_CHANGEMTU event to bypass changing mfs when LAN MTU is changed if NETIF_F_FCOE_MTU is supported. Signed-off-by: NYi Zou <yi.zou@intel.com> Signed-off-by: NRobert Love <robert.w.love@intel.com> Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>
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由 Mike Christie 提交于
When doing echo ethX > /sys..../destroy I am getting errors when the tear down succeeds. It looks like the reason for this is because the rc var is not getting set when the destruction works. This just sets it to zero. Signed-off-by: NMike Christie <michaelc@cs.wisc.edu> Signed-off-by: NRobert Love <robert.w.love@intel.com> Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>
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