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authorLinus Torvalds <torvalds@linux-foundation.org>2012-05-22 04:54:55 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2012-05-22 04:54:55 +0400
commitc23ddf7857bdb2e8001b0a058603497c765a580d (patch)
treef1d826612114a17d6ab543b7095adf04b5ba614a /drivers/net/ethernet/emulex/benet/be_cmds.c
parentda4f58ffa08a7b7012fab9c205fa0f6ba40fec42 (diff)
parentcc169165c82e14ea43e313f937a0a475ca97e588 (diff)
downloadlinux-c23ddf7857bdb2e8001b0a058603497c765a580d.tar.xz
Merge tag 'rdma-for-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
Pull InfiniBand/RDMA changes from Roland Dreier: - Add ocrdma hardware driver for Emulex IB-over-Ethernet adapters - Add generic and mlx4 support for "raw" QPs: allow suitably privileged applications to send and receive arbitrary packets directly to/from the hardware - Add "doorbell drop" handling to the cxgb4 driver - A fairly large batch of qib hardware driver changes - A few fixes for lockdep-detected issues - A few other miscellaneous fixes and cleanups Fix up trivial conflict in drivers/net/ethernet/emulex/benet/be.h. * tag 'rdma-for-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (53 commits) RDMA/cxgb4: Include vmalloc.h for vmalloc and vfree IB/mlx4: Fix mlx4_ib_add() error flow IB/core: Fix IB_SA_COMP_MASK macro IB/iser: Fix error flow in iser ep connection establishment IB/mlx4: Increase the number of vectors (EQs) available for ULPs RDMA/cxgb4: Add query_qp support RDMA/cxgb4: Remove kfifo usage RDMA/cxgb4: Use vmalloc() for debugfs QP dump RDMA/cxgb4: DB Drop Recovery for RDMA and LLD queues RDMA/cxgb4: Disable interrupts in c4iw_ev_dispatch() RDMA/cxgb4: Add DB Overflow Avoidance RDMA/cxgb4: Add debugfs RDMA memory stats cxgb4: DB Drop Recovery for RDMA and LLD queues cxgb4: Common platform specific changes for DB Drop Recovery cxgb4: Detect DB FULL events and notify RDMA ULD RDMA/cxgb4: Drop peer_abort when no endpoint found RDMA/cxgb4: Always wake up waiters in c4iw_peer_abort_intr() mlx4_core: Change bitmap allocator to work in round-robin fashion RDMA/nes: Don't call event handler if pointer is NULL RDMA/nes: Fix for the ORD value of the connecting peer ...
Diffstat (limited to 'drivers/net/ethernet/emulex/benet/be_cmds.c')
-rw-r--r--drivers/net/ethernet/emulex/benet/be_cmds.c39
1 files changed, 39 insertions, 0 deletions
diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.c b/drivers/net/ethernet/emulex/benet/be_cmds.c
index b24623cce07b..8d06ea381741 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.c
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.c
@@ -15,6 +15,7 @@
* Costa Mesa, CA 92626
*/
+#include <linux/module.h>
#include "be.h"
#include "be_cmds.h"
@@ -2646,3 +2647,41 @@ err:
spin_unlock_bh(&adapter->mcc_lock);
return status;
}
+
+int be_roce_mcc_cmd(void *netdev_handle, void *wrb_payload,
+ int wrb_payload_size, u16 *cmd_status, u16 *ext_status)
+{
+ struct be_adapter *adapter = netdev_priv(netdev_handle);
+ struct be_mcc_wrb *wrb;
+ struct be_cmd_req_hdr *hdr = (struct be_cmd_req_hdr *) wrb_payload;
+ struct be_cmd_req_hdr *req;
+ struct be_cmd_resp_hdr *resp;
+ int status;
+
+ spin_lock_bh(&adapter->mcc_lock);
+
+ wrb = wrb_from_mccq(adapter);
+ if (!wrb) {
+ status = -EBUSY;
+ goto err;
+ }
+ req = embedded_payload(wrb);
+ resp = embedded_payload(wrb);
+
+ be_wrb_cmd_hdr_prepare(req, hdr->subsystem,
+ hdr->opcode, wrb_payload_size, wrb, NULL);
+ memcpy(req, wrb_payload, wrb_payload_size);
+ be_dws_cpu_to_le(req, wrb_payload_size);
+
+ status = be_mcc_notify_wait(adapter);
+ if (cmd_status)
+ *cmd_status = (status & 0xffff);
+ if (ext_status)
+ *ext_status = 0;
+ memcpy(wrb_payload, resp, sizeof(*resp) + resp->response_length);
+ be_dws_le_to_cpu(wrb_payload, sizeof(*resp) + resp->response_length);
+err:
+ spin_unlock_bh(&adapter->mcc_lock);
+ return status;
+}
+EXPORT_SYMBOL(be_roce_mcc_cmd);