- 10 10月, 2007 1 次提交
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由 Ralph Campbell 提交于
The code to post UD sends tried to process work requests at the time ib_post_send() is called without using a WQE queue. This was fine as long as HW resources were available for sending a packet. This patch changes UD to be handled more like RC and UC and shares more code. Signed-off-by: NRalph Campbell <ralph.campbell@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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- 10 7月, 2007 5 次提交
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由 John Gregor 提交于
Now that it's June, it's about time to update the copyright notices of files that have changed. Signed-off-by: NJohn Gregor <john.gregor@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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由 Robert Walsh 提交于
The IB specification ch. 9.9.3 table 58 says that a QP which isn't set up for the operation should return a NAK invalid request. Signed-off-by: NRobert Walsh <robert.walsh@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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由 Ralph Campbell 提交于
A duplicate RDMA read request can fool the responder into NAKing a new RDMA read request because the responder wasn't keeping track of whether the queue of RDMA read requests had been sent at least once. For example, requester sends 4 2K byte RDMA read requests, times out, and resends the first, then sees the 4 responses, then sends a 5th RDMA read or atomic operation. The responder sees the 4 requests, sends 4 responses, sees the resent 1st request, rewinds the queue, then sees the 5th request but thinks the queue is full and that the requester is invalidly sending a 5th new request. Signed-off-by: NRalph Campbell <ralph.campbell@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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由 Ralph Campbell 提交于
A RDMA read response or atomic response can ACK earlier sends and RDMA writes. In this case, the wrong work request pointer was being used to store the read first response or atomic result. Also, if a RDMA read request is retried, the code to compute which request to resend was incorrect. Signed-off-by: NRalph Campbell <ralph.campbell@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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由 Ralph Campbell 提交于
According to chapter 17.2.8.1.1, QPs start in the migrated state and should send packets with the M bit set in the BTH. Signed-off-by: NRalph Campbell <ralph.campbell@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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- 07 5月, 2007 2 次提交
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由 Ralph Campbell 提交于
Fix a problem where simple ACKs can be sent ahead of RDMA read responses thus implicitly NAKing the RDMA read. Signed-off-by: NRalph Campbell <ralph.cambpell@qlogic.com> Signed-off-by: NRobert Walsh <robert.walsh@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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由 Ralph Campbell 提交于
Fix a missing unlock in ipath_rc_rcv_resp() and remove an extra unlock from ipath_rc_rcv_error(). Signed-off-by: NRalph Campbell <ralph.campbell@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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- 01 5月, 2007 2 次提交
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由 Ralph Campbell 提交于
This fixes a problem which causes too many RC timeouts and retransmits. Signed-off-by: NRalph Campbell <ralph.campbell@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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由 Ralph Campbell 提交于
This patch fixes the problem reported by Bernd Schubert <bs@q-leap.de> with kernel debug options enabled: BUG: at kernel/lockdep.c:1860 trace_hardirqs_on() This was caused by using spin_lock_irq()/spin_unlock_irq() from interrupt context. Fix all the places that might be called from interrupts to use spin_lock_irqsave()/spin_unlock_irqrestore(). Signed-off-by: NRalph Campbell <ralph.campbell@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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- 19 4月, 2007 4 次提交
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由 Ralph Campbell 提交于
Fix RDMA read response length checking for RDMA_READ_RESPONSE_ONLY to allow a zero length response. RDMA read responses which don't match the expected length or occur in response to some other operation should generate a completion queue error (see table 56, ch. 9.9.2.3 in the IB spec). Signed-off-by: NBryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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由 Ralph Campbell 提交于
This patch fixes a number of bugs with updating the PSN for retries of RC requests. Signed-off-by: NBryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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由 Ralph Campbell 提交于
When switching to the QP error state, the completion queue entries (error or flush) were not being generated correctly. Signed-off-by: NBryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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由 Ralph Campbell 提交于
This patch adds support for multiple RDMA reads and atomics to be sent before an ACK is required to be seen by the requester. Signed-off-by: NBryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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- 05 2月, 2007 1 次提交
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由 Michael S. Tsirkin 提交于
struct ib_wc currently only includes the local QP number: this matches the IB spec, but seems mostly useless. The following patch replaces this with the pointer to qp itself, and updates all low level drivers and all users. This has the following advantages: - Ability to get a per-qp context through wc->qp->qp_context - Existing drivers already have the qp pointer ready in poll cq, so this change actually saves a tiny bit (extra memory read) on data path (for ehca it would actually be expensive to find the QP pointer when polling a CQ, but ehca does not support SRQ so we can leave wc->qp as NULL for ehca) - Users that need the QP number can still get it through wc->qp->qp_num Use case: In IPoIB connected mode code, I have a common CQ shared by multiple QPs. To track connection usage, I need a way to get at some per-QP context upon the completion, and I would like to avoid allocating context object per work request just to stick a QP pointer into it. With this code, I can just use wc->qp->qp_context. Signed-off-by: NMichael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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- 03 10月, 2006 1 次提交
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由 Ralph Campbell 提交于
The PSN used to generate the request following a RDMA read was incorrect and some state booking wasn't maintained correctly. This patch fixes that. Signed-off-by: NRalph Campbell <ralph.campbell@qlogic.com> Signed-off-by: NBryan O'Sullivan <bryan.osullivan@qlogic.com>
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- 29 9月, 2006 4 次提交
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由 Bryan O'Sullivan 提交于
If the receiver goes into the error state, we need to flush the posted receive WQEs. Signed-off-by: NBryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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由 Bryan O'Sullivan 提交于
Signed-off-by: NBryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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由 Bryan O'Sullivan 提交于
This is required for IB conformance (spec ch. 9.6.1.5). Signed-off-by: NBryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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由 Bryan O'Sullivan 提交于
The sender requests an ACK every 1/2 MB to avoid retransmit timeouts that were causing MVAPICH mod_bw to fail after a predictable number of sends. Signed-off-by: NBryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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- 23 9月, 2006 1 次提交
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由 Bryan O'Sullivan 提交于
A lot of ipath layer code was only called in one place. Now that the ipath_core and ib_ipath drivers are merged, it's more sensible to simply inline the simple stuff that the layer code was doing. Signed-off-by: NBryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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- 02 7月, 2006 6 次提交
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由 Bryan O'Sullivan 提交于
Remove ips namespace from infinipath drivers. This renames ips_common.h to ipath_common.h. Definitions, data structures, etc. that were not used by kernel modules have moved to user-only headers. All names including ips have been renamed to ipath. Some names have had an ipath prefix added. Signed-off-by: NChristian Bell <christian.bell@qlogic.com> Signed-off-by: NBryan O'Sullivan <bryan.osullivan@qlogic.com> Cc: "Michael S. Tsirkin" <mst@mellanox.co.il> Cc: Roland Dreier <rolandd@cisco.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Bryan O'Sullivan 提交于
This patch separates QP state used for sending and receiving RC packets so the processing in the receive interrupt handler can be done mostly without locks being held. ACK packets are now sent without requiring synchronization with the send tasklet. Signed-off-by: NRalph Campbell <ralph.campbell@qlogic.com> Signed-off-by: NBryan O'Sullivan <bryan.osullivan@qlogic.com> Cc: "Michael S. Tsirkin" <mst@mellanox.co.il> Cc: Roland Dreier <rolandd@cisco.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Bryan O'Sullivan 提交于
Signed-off-by: NRalph Campbell <ralph.campbell@qlogic.com> Signed-off-by: NBryan O'Sullivan <bryan.osullivan@qlogic.com> Cc: "Michael S. Tsirkin" <mst@mellanox.co.il> Cc: Roland Dreier <rolandd@cisco.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Bryan O'Sullivan 提交于
Signed-off-by: NRalph Campbell <ralph.campbell@qlogic.com> Signed-off-by: NBryan O'Sullivan <bryan.osullivan@qlogic.com> Cc: "Michael S. Tsirkin" <mst@mellanox.co.il> Cc: Roland Dreier <rolandd@cisco.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Bryan O'Sullivan 提交于
Signed-off-by: NRalph Campbell <ralph.campbell@qlogic.com> Signed-off-by: NBryan O'Sullivan <bryan.osullivan@qlogic.com> Cc: "Michael S. Tsirkin" <mst@mellanox.co.il> Cc: Roland Dreier <rolandd@cisco.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Bryan O'Sullivan 提交于
Signed-off-by: NBryan O'Sullivan <bryan.osullivan@qlogic.com> Cc: "Michael S. Tsirkin" <mst@mellanox.co.il> Cc: Roland Dreier <rolandd@cisco.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 24 5月, 2006 1 次提交
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由 Bryan O'Sullivan 提交于
Per Andrew's request. Signed-off-by: NBryan O'Sullivan <bos@pathscale.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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- 01 4月, 2006 1 次提交
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由 Bryan O'Sullivan 提交于
This is an implementation of the Infiniband RC ("reliable connection") protocol. Signed-off-by: NBryan O'Sullivan <bos@pathscale.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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