Hi Michael, Would be grateful if you could advise if the following known firmware bug might be the cause
2. DoorBell loss DoorBells may be lost on systems with a 64-KByte page size upon heavy stress conditions http://www.mellanox.com/pdf/firmware/fw-25218-5_3_000-release_notes.pdf Regards Lee On 19 May 2011 08:34, Michael Brown <[email protected]> wrote: > On Wednesday 18 May 2011 20:28:43 Lee Staples wrote: > > Have just reinstalled SCST and built latest ipxe commit > > (c49659c4f26e23f3fc234c2068786872554daa69) with the arbel queue pair > > patch from last year. > > > > Would be grateful if you could take a look at the error I'm getting and > > advise as it appears to login successfully to the server > > > > Could not open SAN device: Input/output error ( > http://ipxe.org/1d714039) > > srp boot failedCMRC 0x23354 shutting down > > Arbel 0x215b4 issuing command 0021 > > CMRC 0x23354 send error: Operation canceled (http://ipxe.org/0b1360a0 > ) > > Login is handled via a pair of management datagrams. The RC queue pair is > not > used until the first packet after login completes. Your client.log shows > that > the RC queue pair is transitioning into an error state as soon as the first > send WQE is posted: > > QPN 0xd75405 context before doorbell: > Arbel 0x215b4 issuing command 0022 > Arbel 0x215b4 QPN 0xd75405 context: > 00000000 : 30 00 19 00 ff 3e 3f 16-9f 0a 13 00 00 00 00 01 > ... > QPN 0xd75405 context after doorbell: > Arbel 0x215b4 issuing command 0022 > Arbel 0x215b4 QPN 0xd75405 context: > 00000000 : 60 00 19 00 f8 3c 28 14-9f 0a 13 00 00 00 00 01 > ... > > The first nibble of this hex dump is the queue state - 3="ready to send", > 6="error". > > Something must be wrong with either the queue pair context or the send WQE > created by iPXE for Arbel. I have examined both in excruciating detail the > last time I worked on this, and I couldn't find any problem. > > > Itay: is there a debug version of the firmware available that would provide > some indication of why the QP is transitioning to ERR? > > Michael >
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