Merge commit 'linus/master' into merge-linus

Conflicts:

	arch/x86/kvm/i8254.c

1 files changed, 150 insertions, 0 deletions

diff --git a/drivers/net/qlge/qlge_mpi.c b/drivers/net/qlge/qlge_mpi.c
new file mode 100644
index 00000000000..24fe344bcf1
--- /dev/null
+++ b/drivers/net/qlge/qlge_mpi.c
@@ -0,0 +1,150 @@
+#include "qlge.h"
+
+static int ql_read_mbox_reg(struct ql_adapter *qdev, u32 reg, u32 *data)
+{
+	int status;
+	/* wait for reg to come ready */
+	status = ql_wait_reg_rdy(qdev, PROC_ADDR, PROC_ADDR_RDY, PROC_ADDR_ERR);
+	if (status)
+		goto exit;
+	/* set up for reg read */
+	ql_write32(qdev, PROC_ADDR, reg | PROC_ADDR_R);
+	/* wait for reg to come ready */
+	status = ql_wait_reg_rdy(qdev, PROC_ADDR, PROC_ADDR_RDY, PROC_ADDR_ERR);
+	if (status)
+		goto exit;
+	/* get the data */
+	*data = ql_read32(qdev, PROC_DATA);
+exit:
+	return status;
+}
+
+int ql_get_mb_sts(struct ql_adapter *qdev, struct mbox_params *mbcp)
+{
+	int i, status;
+
+	status = ql_sem_spinlock(qdev, SEM_PROC_REG_MASK);
+	if (status)
+		return -EBUSY;
+	for (i = 0; i < mbcp->out_count; i++) {
+		status =
+		    ql_read_mbox_reg(qdev, qdev->mailbox_out + i,
+				     &mbcp->mbox_out[i]);
+		if (status) {
+			QPRINTK(qdev, DRV, ERR, "Failed mailbox read.\n");
+			break;
+		}
+	}
+	ql_sem_unlock(qdev, SEM_PROC_REG_MASK);	/* does flush too */
+	return status;
+}
+
+static void ql_link_up(struct ql_adapter *qdev, struct mbox_params *mbcp)
+{
+	mbcp->out_count = 2;
+
+	if (ql_get_mb_sts(qdev, mbcp))
+		goto exit;
+
+	qdev->link_status = mbcp->mbox_out[1];
+	QPRINTK(qdev, DRV, ERR, "Link Up.\n");
+	QPRINTK(qdev, DRV, INFO, "Link Status = 0x%.08x.\n", mbcp->mbox_out[1]);
+	if (!netif_carrier_ok(qdev->ndev)) {
+		QPRINTK(qdev, LINK, INFO, "Link is Up.\n");
+		netif_carrier_on(qdev->ndev);
+		netif_wake_queue(qdev->ndev);
+	}
+exit:
+	/* Clear the MPI firmware status. */
+	ql_write32(qdev, CSR, CSR_CMD_CLR_R2PCI_INT);
+}
+
+static void ql_link_down(struct ql_adapter *qdev, struct mbox_params *mbcp)
+{
+	mbcp->out_count = 3;
+
+	if (ql_get_mb_sts(qdev, mbcp)) {
+		QPRINTK(qdev, DRV, ERR, "Firmware did not initialize!\n");
+		goto exit;
+	}
+
+	if (netif_carrier_ok(qdev->ndev)) {
+		QPRINTK(qdev, LINK, INFO, "Link is Down.\n");
+		netif_carrier_off(qdev->ndev);
+		netif_stop_queue(qdev->ndev);
+	}
+	QPRINTK(qdev, DRV, ERR, "Link Down.\n");
+	QPRINTK(qdev, DRV, ERR, "Link Status = 0x%.08x.\n", mbcp->mbox_out[1]);
+exit:
+	/* Clear the MPI firmware status. */
+	ql_write32(qdev, CSR, CSR_CMD_CLR_R2PCI_INT);
+}
+
+static void ql_init_fw_done(struct ql_adapter *qdev, struct mbox_params *mbcp)
+{
+	mbcp->out_count = 2;
+
+	if (ql_get_mb_sts(qdev, mbcp)) {
+		QPRINTK(qdev, DRV, ERR, "Firmware did not initialize!\n");
+		goto exit;
+	}
+	QPRINTK(qdev, DRV, ERR, "Firmware initialized!\n");
+	QPRINTK(qdev, DRV, ERR, "Firmware status = 0x%.08x.\n",
+		mbcp->mbox_out[0]);
+	QPRINTK(qdev, DRV, ERR, "Firmware Revision  = 0x%.08x.\n",
+		mbcp->mbox_out[1]);
+exit:
+	/* Clear the MPI firmware status. */
+	ql_write32(qdev, CSR, CSR_CMD_CLR_R2PCI_INT);
+}
+
+void ql_mpi_work(struct work_struct *work)
+{
+	struct ql_adapter *qdev =
+	    container_of(work, struct ql_adapter, mpi_work.work);
+	struct mbox_params mbc;
+	struct mbox_params *mbcp = &mbc;
+	mbcp->out_count = 1;
+
+	while (ql_read32(qdev, STS) & STS_PI) {
+		if (ql_get_mb_sts(qdev, mbcp)) {
+			QPRINTK(qdev, DRV, ERR,
+				"Could not read MPI, resetting ASIC!\n");
+			ql_queue_asic_error(qdev);
+		}
+
+		switch (mbcp->mbox_out[0]) {
+		case AEN_LINK_UP:
+			ql_link_up(qdev, mbcp);
+			break;
+		case AEN_LINK_DOWN:
+			ql_link_down(qdev, mbcp);
+			break;
+		case AEN_FW_INIT_DONE:
+			ql_init_fw_done(qdev, mbcp);
+			break;
+		case MB_CMD_STS_GOOD:
+			break;
+		case AEN_FW_INIT_FAIL:
+		case AEN_SYS_ERR:
+		case MB_CMD_STS_ERR:
+			ql_queue_fw_error(qdev);
+		default:
+			/* Clear the MPI firmware status. */
+			ql_write32(qdev, CSR, CSR_CMD_CLR_R2PCI_INT);
+			break;
+		}
+	}
+	ql_enable_completion_interrupt(qdev, 0);
+}
+
+void ql_mpi_reset_work(struct work_struct *work)
+{
+	struct ql_adapter *qdev =
+	    container_of(work, struct ql_adapter, mpi_reset_work.work);
+	QPRINTK(qdev, DRV, ERR,
+		"Enter, qdev = %p..\n", qdev);
+	ql_write32(qdev, CSR, CSR_CMD_SET_RST);
+	msleep(50);
+	ql_write32(qdev, CSR, CSR_CMD_CLR_RST);
+}