- 21 Dec, 2010 40 commits
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Swen Schillig authored
This patch is the continuation to redesign the zfcp tracing to a more straight-forward and easy to extend scheme. This patch deals with all trace records of the zfcp SCSI area. 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@suse.de>
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Swen Schillig authored
This patch is the continuation to redesign the zfcp tracing to a more straight-forward and easy to extend scheme. This patch deals with all trace records of the zfcp HBA area. Signed-off-by:
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Swen Schillig authored
This patch is the continuation to redesign the zfcp tracing to a more straight-forward and easy to extend scheme. This patch deals with all trace records of the zfcp SAN area. Signed-off-by:
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Swen Schillig authored
The tracing environment of the zfcp LLD has become very bulky and hard to maintain. Small changes involve a large modification process which is error-prone and not effective. This patch is the first of a set to redesign the zfcp tracing to a more straight-forward and easy to extend scheme. It removes all interpretation and visualization parts and focuses on bare logging of the information. This patch deals with all trace records of the zfcp error recovery. Signed-off-by:
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Vikas Chaudhary authored
Signed-off-by:
Vikas Chaudhary <vikas.chaudhary@qlogic.com> Signed-off-by:
Ravi Anand <ravi.anand@qlogic.com> Signed-off-by:
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Vikas Chaudhary authored
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Vikas Chaudhary authored
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Lalit Chandivade authored
Signed-off-by:
Lalit Chandivade <lalit.chandivade@qlogic.com> Signed-off-by:
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Prasanna Mumbai authored
Prior to firmware state change from ACQUIRING to READY, an 0x8029 AEN is received. Added code to check previous state being ACQUIRING in order to update the ip address in the driver. Signed-off-by:
Prasanna Mumbai <prasanna.mumbai@qlogic.com> Signed-off-by:
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Lalit Chandivade authored
Since if fw load is failing, running on incomplete fw load would be fatal. Signed-off-by:
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Lalit Chandivade authored
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Lalit Chandivade authored
in mailbox command do not process interrupt unconditionally, process interrupt only in polling mode Signed-off-by:
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Karen Higgins authored
Signed-off-by:
Karen Higgins <karen.higgins@qlogic.com> Signed-off-by:
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Swapnil Nagle authored
Signed-off-by:
Swapnil Nagle <swapnil.nagle@qlogic.com> Signed-off-by:
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Shyam Sundar authored
IRQF_SHARED flag should not be set when calling request_irq for MSI since this interrupt mechanism cannot be shared like standard INTx Signed-off-by:
Shyam Sundar <shyam.sundar@qlogic.com> Signed-off-by:
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Vikas Chaudhary authored
IRQF_DISABLE flag is deprecated and this flag is a NOOP in kernel. Signed-off-by:
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Joe Eykholt authored
The statistics for InputMegabytes and OutputMegabytes are misnamed. They're accumulating bytes, not megabytes. The statistic returned via /sys must be in megabytes, however, which is what the HBA-API wants. The FCP code needs to accumulate it in bytes and then divide by 1,000,000 (not 2^20) before it presented via sysfs. This affects fcoe.ko only, not fnic. The fnic driver correctly by accumulating bytes and then converts to megabytes. I checked that libhbalinux is using the /sys file directly without conversion. BTW, qla2xxx does divide by 2^20, which I'm not fixing here. Signed-off-by:
Joe Eykholt <jeykholt@cisco.com> Signed-off-by:
Robert Love <robert.w.love@intel.com> Signed-off-by:
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Joe Eykholt authored
Neaten several calls to fip_select() by having it return the pointer to the new FCF. Signed-off-by:
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Joe Eykholt authored
When there are several FCFs to choose from, the one most likely to accept a FLOGI on certian switches is the one that last answered a multicast solicit. So, when receiving an advertisement, move the FCF to the front of the list so that it gets chosen first among those with the same priority. Without this, more FLOGIs need to be sent in a test with multiple FCFs and a switch in NPV mode, but it still eventually finds one that accepts the FLOGI. Signed-off-by:
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Joe Eykholt authored
When multiple FCFs to the same fabric exist, the debug messages all look alike. Change the message to include the MAC address. Signed-off-by:
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Joe Eykholt authored
Switches using multiple-FCFs may reject FLOGI in order to balance the load between multiple FCFs. Even though the FCF was available, it may have more load at the point we actually send the FLOGI. If the FLOGI fails, select a different FCF if possible, among those with the same priority. If no other FCF is available, just deliver the reject to libfc for retry. Signed-off-by:
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Joe Eykholt authored
The check for conflicting fabrics in fcoe_ctlr_select() ignores any FCFs that aren't usable. This is a minor problem now but becomes more pronounced after later patches. Signed-off-by:
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Joe Eykholt authored
Move some of the code in fcoe_ctlr_timer_work() to fcoe_ctlr_select() so that it can be shared with another function in a forthcoming patch. Signed-off-by:
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Joe Eykholt authored
Move the announcement code to a separate function for reuse in a forthcoming patch. For messages regarding FCF timeout and selection, use the previously-announced FCF MAC address (dest_addr) in the fcoe_ctlr struct. Only print (announce) the FCF if it is new. Print MAC for timed-out or deselected FCFs. Signed-off-by:
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Yi Zou authored
Frame should be freed in fc_tm_done, this is an updated patch on the one initially submitted by Hillf Danton. Signed-off-by:
Hillf Danton <dhillf@gmail.com> Signed-off-by:
Yi Zou <yi.zou@intel.com> Signed-off-by:
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Yi Zou authored
The timeout for the exchange carrying REC itself is 2 * R_A_TOV_els. Signed-off-by:
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Yi Zou authored
Should not continue when the abort itself is being timeout since in that case the exchange will be deleted and relesased. We still want to call the associated response handler to let the layer, e.g., fcp, know the exchange itself is being timed out. Signed-off-by:
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Yi Zou authored
Do not call fc_io_compl() on fsp w/o any scsi_cmnd, e.g., lun reset is built inside fc_fcp, not from a scsi command from queuecommnd from scsi-ml, so in in case target is buggy that is invalid flags in the FCP_RSP, as we have seen in some SAN Blaze target where all bits in flags are 0, we do not want to call io_compl on this fsp. [ Comment block added by Robert Love ] Signed-off-by:
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Yi Zou authored
This is very helpful to match up the corresponding exchange to the actual I/O described by the fsp, particularly when you do a side-by-side comparison of the syslog with your trace. Signed-off-by:
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Joe Perches authored
Add missing newlines. Signed-off-by:
Joe Perches <joe@perches.com> Signed-off-by:
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Hillf Danton authored
There seems rdata should get put before return. Signed-off-by:
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Hillf Danton authored
There seems info should get freed when error encountered. Signed-off-by:
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Hillf Danton authored
There seems info should get freed when error encountered. Signed-off-by:
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john fastabend authored
We can easily remove the tgt_flags from fc_fcp_pkt struct and use rpriv->tgt_flags directly where needed. Signed-off-by:
John Fastabend <john.r.fastabend@intel.com> Signed-off-by:
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john fastabend authored
Use the rport value for rec_tov for timeout values when sending fcp commands. Currently, defaults are being used which may or may not match the advertised values. The default may cause i/o to timeout on networks that set this value larger then the default value. To make the timeout more configurable in the non-REC mode we remove the FC_SCSI_ER_TIMEOUT completely allowing the scsi-ml to do the timeout. This removes an unneeded timer and allows the i/o timeout to be configured using the scsi-ml knobs. Signed-off-by:
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john fastabend authored
The fcp packet recovery handler fc_fcp_recover() is called when errors occurr in a fcp session. Currently it is generically setting the status code to FC_CMD_RECOVERY for all error types. This results in DID_BUS_BUSY errors being returned to the scsi-ml. DID_BUS_BUSY errors indicate "BUS stayed busy through time out period" according to scsi.h. Many of the error reported by fc_rcp_recovery() are pkt errors. Here we update fc_fcp_recovery to use better host byte codes. With certain FAST FAIL flags set DID_BUS_BUSY and DID_ERROR will have different behaviors this was causing dm multipath to fail quickly in some cases where a retry would be a better action. Signed-off-by:
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Hillf Danton authored
There seems accumulation needed. Signed-off-by:
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Hillf Danton authored
There is a typo cleaned, which triggers memory leakage. Signed-off-by:
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Robert Love authored
The error handler grabs the si->scsi_queue_lock, but in the case where the fsp pointer is NULL it releases the scsi_host lock. This can lead to a variety of system hangs depending on which is used first- the scsi_host lock or the scsi_queue_lock. This patch simply unlocks the correct lock when fcp is NULL. Signed-off-by:
Ross Brattain <ross.b.brattain@intel.com> Signed-off-by:
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Hillf Danton authored
For allocating new exch from pool, scanning for free slot in exch array fluctuates when exch pool is close to exhaustion. The fluctuation is smoothed, and the scan looks to be O(2). Signed-off-by:
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