kernel.git/net/rds/ib_send.c, branch linux-2.6.36.y

RDS: Properly unmap when getting a remote access error

2010-03-17T04:17:00Z

If the RDMA op has aborted with a remote access error, in addition to what we already do (tell userspace it has completed with an error) also unmap it and put() the rm. Otherwise, hangs may occur on arches that track maps and will not exit without proper cleanup. Signed-off-by: Andy Grover Signed-off-by: David S. Miller

RDS: Fix congestion issues for loopback

2010-03-17T04:16:55Z

We have two kinds of loopback: software (via loop transport) and hardware (via IB). sw is used for 127.0.0.1, and doesn't support rdma ops. hw is used for sends to local device IPs, and supports rdma. Both are used in different cases. For both of these, when there is a congestion map update, we want to call rds_cong_map_updated() but not actually send anything -- since loopback local and foreign congestion maps point to the same spot, they're already in sync. The old code never called sw loop's xmit_cong_map(),so rds_cong_map_updated() wasn't being called for it. sw loop ports would not work right with the congestion monitor. Fixing that meant that hw loopback now would send congestion maps to itself. This is also undesirable (racy), so we check for this case in the ib-specific xmit code. Signed-off-by: Andy Grover Signed-off-by: David S. Miller

RDS: Do not BUG() on error returned from ib_post_send

2010-03-17T04:16:53Z

BUGging on a runtime error code should be avoided. This patch also eliminates all other BUG()s that have no real reason to exist. Signed-off-by: Andy Grover Signed-off-by: David S. Miller

net: Move && and || to end of previous line

2009-11-30T00:55:45Z

Not including net/atm/ Compiled tested x86 allyesconfig only Added a > 80 column line or two, which I ignored. Existing checkpatch plaints willfully, cheerfully ignored. Signed-off-by: Joe Perches Signed-off-by: David S. Miller

RDS/IW+IB: Allow max credit advertise window.

2009-04-10T00:21:17Z

Fix hack that restricts the credit advertisement to 127. Signed-off-by: Steve Wise Signed-off-by: Andy Grover Signed-off-by: David S. Miller

RDS/IW+IB: Set the RDS_LL_SEND_FULL bit when we're throttled.

2009-04-10T00:21:16Z

The RDS_LL_SEND_FULL bit should be set when we stop transmitted due to flow control. Otherwise the send worker will keep trying as opposed to sleeping until we unthrottle. Saves CPU. Signed-off-by: Steve Wise Signed-off-by: Andy Grover Signed-off-by: David S. Miller

RDS/IB: Implement IB-specific datagram send.

2009-02-27T07:39:31Z

Specific to IB is a credits-based flow control mechanism, in addition to the expected usage of the IB API to package outgoing data into work requests. Signed-off-by: Andy Grover Signed-off-by: David S. Miller