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path: root/drivers/net/qlge/qlge_mpi.c
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Diffstat (limited to 'drivers/net/qlge/qlge_mpi.c')
-rw-r--r--drivers/net/qlge/qlge_mpi.c93
1 files changed, 93 insertions, 0 deletions
diff --git a/drivers/net/qlge/qlge_mpi.c b/drivers/net/qlge/qlge_mpi.c
index c2e43073047e..99e58e3f8e22 100644
--- a/drivers/net/qlge/qlge_mpi.c
+++ b/drivers/net/qlge/qlge_mpi.c
@@ -768,6 +768,95 @@ static int ql_idc_wait(struct ql_adapter *qdev)
return status;
}
+int ql_mb_set_mgmnt_traffic_ctl(struct ql_adapter *qdev, u32 control)
+{
+ struct mbox_params mbc;
+ struct mbox_params *mbcp = &mbc;
+ int status;
+
+ memset(mbcp, 0, sizeof(struct mbox_params));
+
+ mbcp->in_count = 1;
+ mbcp->out_count = 2;
+
+ mbcp->mbox_in[0] = MB_CMD_SET_MGMNT_TFK_CTL;
+ mbcp->mbox_in[1] = control;
+
+ status = ql_mailbox_command(qdev, mbcp);
+ if (status)
+ return status;
+
+ if (mbcp->mbox_out[0] == MB_CMD_STS_GOOD)
+ return status;
+
+ if (mbcp->mbox_out[0] == MB_CMD_STS_INVLD_CMD) {
+ QPRINTK(qdev, DRV, ERR,
+ "Command not supported by firmware.\n");
+ status = -EINVAL;
+ } else if (mbcp->mbox_out[0] == MB_CMD_STS_ERR) {
+ /* This indicates that the firmware is
+ * already in the state we are trying to
+ * change it to.
+ */
+ QPRINTK(qdev, DRV, ERR,
+ "Command parameters make no change.\n");
+ }
+ return status;
+}
+
+/* Returns a negative error code or the mailbox command status. */
+static int ql_mb_get_mgmnt_traffic_ctl(struct ql_adapter *qdev, u32 *control)
+{
+ struct mbox_params mbc;
+ struct mbox_params *mbcp = &mbc;
+ int status;
+
+ memset(mbcp, 0, sizeof(struct mbox_params));
+ *control = 0;
+
+ mbcp->in_count = 1;
+ mbcp->out_count = 1;
+
+ mbcp->mbox_in[0] = MB_CMD_GET_MGMNT_TFK_CTL;
+
+ status = ql_mailbox_command(qdev, mbcp);
+ if (status)
+ return status;
+
+ if (mbcp->mbox_out[0] == MB_CMD_STS_GOOD) {
+ *control = mbcp->mbox_in[1];
+ return status;
+ }
+
+ if (mbcp->mbox_out[0] == MB_CMD_STS_INVLD_CMD) {
+ QPRINTK(qdev, DRV, ERR,
+ "Command not supported by firmware.\n");
+ status = -EINVAL;
+ } else if (mbcp->mbox_out[0] == MB_CMD_STS_ERR) {
+ QPRINTK(qdev, DRV, ERR,
+ "Failed to get MPI traffic control.\n");
+ status = -EIO;
+ }
+ return status;
+}
+
+int ql_wait_fifo_empty(struct ql_adapter *qdev)
+{
+ int count = 5;
+ u32 mgmnt_fifo_empty;
+ u32 nic_fifo_empty;
+
+ do {
+ nic_fifo_empty = ql_read32(qdev, STS) & STS_NFE;
+ ql_mb_get_mgmnt_traffic_ctl(qdev, &mgmnt_fifo_empty);
+ mgmnt_fifo_empty &= MB_GET_MPI_TFK_FIFO_EMPTY;
+ if (nic_fifo_empty && mgmnt_fifo_empty)
+ return 0;
+ msleep(100);
+ } while (count-- > 0);
+ return -ETIMEDOUT;
+}
+
/* API called in work thread context to set new TX/RX
* maximum frame size values to match MTU.
*/
@@ -876,6 +965,8 @@ void ql_mpi_work(struct work_struct *work)
int err = 0;
rtnl_lock();
+ /* Begin polled mode for MPI */
+ ql_write32(qdev, INTR_MASK, (INTR_MASK_PI << 16));
while (ql_read32(qdev, STS) & STS_PI) {
memset(mbcp, 0, sizeof(struct mbox_params));
@@ -888,6 +979,8 @@ void ql_mpi_work(struct work_struct *work)
break;
}
+ /* End polled mode for MPI */
+ ql_write32(qdev, INTR_MASK, (INTR_MASK_PI << 16) | INTR_MASK_PI);
rtnl_unlock();
ql_enable_completion_interrupt(qdev, 0);
}