Commits · 1047f22108bd9bfedefd3ff014cb56691dfbaa3f · Kirill Smelkov / linux

08 Jun, 2009 29 commits

[SCSI] fcoe: removes fcoe_watchdog · 1047f221

Vasu Dev authored May 06, 2009

Removes periodic fcoe_watchdog timer used across all fcoe interface
maintained in fcoe_hostlist instead added new fcoe_queue_timer
per fcoe interface.

Added timer is armed only when some pending skb need to be flushed
as oppose to periodic 1 second fcoe_watchdog, since now
fcoe_queue_timer is used on demand thus set this to 2 jiffies.

Now fcoe_queue_timer is much simple than fcoe_watchdog using lock to
process all fcoe interface from fcoe_hostlist.

I noticed +ve performance result with using 2 jiffies timer as
this helps flushing fcoe_pending_queue quickly.
Signed-off-by: Vasu Dev <vasu.dev@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

1047f221

[SCSI] fcoe: reduces lock cost when adding a new skb to fcoe_pending_queue · 4bb6b515

Vasu Dev authored May 06, 2009

Currently fcoe_pending_queue.lock held twice for every new skb
adding to this queue when already least one pkt is pending in this
queue and that is not uncommon once skb pkts starts getting queued
here upon fcoe_start_io => dev_queue_xmit failure.

This patch moves most fcoe_pending_queue logic to fcoe_check_wait_queue
function, this new logic grabs fcoe_pending_queue.lock only once to
add a new skb instead twice as used to be.

I think after this patch call flow around fcoe_check_wait_queue
calling in fcoe_xmit is bit simplified with modified
fcoe_check_wait_queue function taking care of adding and
removing pending skb in one function.
Signed-off-by: Vasu Dev <vasu.dev@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

4bb6b515

[SCSI] libfc: Check if exchange is completed when receiving a sequence · 30121d14

Steve Ma authored May 06, 2009

When a sequence is received in response to an exchange we issued previously,
we should check to see if the exchange has completed. If yes, the sequence
should be discarded. Since the exchange might be still in the completion
process, it should be untouched.
Signed-off-by: Steve Ma <steve.ma@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

30121d14

[SCSI] libfc: use DID_ERROR when we have internall aborted command · d5e6054a

Mike Christie authored May 06, 2009

If we aborted a command, because it timed out we should not use
DID_ABORT. It will fail the command right away back to the upper
layer. We want to use something that indicated that the problem
did not complete normally, but it was not a fatal problem.
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

d5e6054a

[SCSI] fcoe: use ETH_P_FIP for skb->protocol of FIP frames · 0f491539

Chris Leech authored May 06, 2009

FIP frames should leave the fcoe layer with skb->protocol set to
ETH_P_FIP, not ETH_P_802_3.
Signed-off-by: Chris Leech <christopher.leech@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

0f491539

[SCSI] libfcoe: fip: fix non-FIP-mode FLOGI state after reset. · 5f48f70e

Joe Eykholt authored May 06, 2009

When a reset is sent using fcoeadm on a non-FIP mode NIC,
there's no link flap, so the fcoe_ctlr stays in non-FIP mode.

In that case, FIP wasn't setting the flogi_oxid or map_dest flag,
causing the FLOGI to be sent with the both wrong source MAC and
the wrong destination MAC address, causing it to fail.

This leads to a non-functioning HBA until a link flap or
instance delete/create.
Signed-off-by: Joe Eykholt <jeykholt@cisco.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

5f48f70e

[SCSI] cxgb3i: Include net/dst.h for struct dst_cache · f00a3328

Herbert Xu authored May 30, 2009

This driver needs dst_cache->dev so it should include net/dst.h
to ensure that it builds.  While net/tcp.h probably includes it
already, we shouldn't rely on that since there is no guarantee
that this won't change in future.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>