Commit 6a4ab669 authored by Parav Pandit's avatar Parav Pandit Committed by Roland Dreier

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: default avatarParav Pandit <parav.pandit@emulex.com>
Acked-by: default avatarDavid S. Miller <davem@davemloft.net>
Signed-off-by: default avatarRoland Dreier <roland@purestorage.com>
parent d48b97b4
...@@ -15,6 +15,7 @@ ...@@ -15,6 +15,7 @@
* Costa Mesa, CA 92626 * Costa Mesa, CA 92626
*/ */
#include <linux/module.h>
#include "be.h" #include "be.h"
#include "be_cmds.h" #include "be_cmds.h"
...@@ -2556,3 +2557,41 @@ int be_cmd_get_acpi_wol_cap(struct be_adapter *adapter) ...@@ -2556,3 +2557,41 @@ int be_cmd_get_acpi_wol_cap(struct be_adapter *adapter)
pci_free_consistent(adapter->pdev, cmd.size, cmd.va, cmd.dma); pci_free_consistent(adapter->pdev, cmd.size, cmd.va, cmd.dma);
return status; 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);
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