diff options
author | Parav Pandit <parav.pandit@emulex.com> | 2012-03-26 14:27:12 +0000 |
---|---|---|
committer | Roland Dreier <roland@purestorage.com> | 2012-05-08 11:17:47 -0700 |
commit | 6a4ab669ad0b0eadb042383ef7677a84a68a0e0e (patch) | |
tree | 787b3c96f6a4ca7cfcad23d626cd07eb99e45d63 | |
parent | d48b97b403d23f6df0b990cee652bdf9a52337a3 (diff) | |
download | linux-6a4ab669ad0b0eadb042383ef7677a84a68a0e0e.tar.gz |
be2net: Add function to issue mailbox cmd on MQ
- Add generic function to issue mailbox cmd on MQ as export function.
- RoCE driver will use this before it setups its own MQ.
Signed-off-by: Parav Pandit <parav.pandit@emulex.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Roland Dreier <roland@purestorage.com>
-rw-r--r-- | drivers/net/ethernet/emulex/benet/be_cmds.c | 39 |
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 67b030d72df1..1c7c7d06a0b7 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" @@ -2556,3 +2557,41 @@ err: pci_free_consistent(adapter->pdev, cmd.size, cmd.va, cmd.dma); 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); |