Date:	Wed, 21 Oct 2009 14:07:40 -0700
From:	Ron Mercer <ron.mercer@...gic.com>
To:	davem@...emloft.net
Cc:	netdev@...r.kernel.org, ron.mercer@...gic.com
Subject: [net-next PATCH 3/4] qlge: Add ethtool wake on LAN function.


Signed-off-by: Ron Mercer <ron.mercer@...gic.com>
---
 drivers/net/qlge/qlge.h         |    4 ++
 drivers/net/qlge/qlge_ethtool.c |   32 ++++++++++++++++++
 drivers/net/qlge/qlge_main.c    |   66 ++++++++++++++++++++++++++++++++++++
 drivers/net/qlge/qlge_mpi.c     |   70 +++++++++++++++++++++++++++++++++++++++
 4 files changed, 172 insertions(+), 0 deletions(-)

diff --git a/drivers/net/qlge/qlge.h b/drivers/net/qlge/qlge.h
index 0e0cce9..157f55e 100644
--- a/drivers/net/qlge/qlge.h
+++ b/drivers/net/qlge/qlge.h
@@ -796,6 +796,7 @@ enum {
 	MB_WOL_BCAST = (1 << 5),
 	MB_WOL_LINK_UP = (1 << 6),
 	MB_WOL_LINK_DOWN = (1 << 7),
+	MB_WOL_MODE_ON = (1 << 16),		/* Wake on Lan Mode on */
 	MB_CMD_SET_WOL_FLTR = 0x00000111,	/* Wake On Lan Filter */
 	MB_CMD_CLEAR_WOL_FLTR = 0x00000112, /* Wake On Lan Filter */
 	MB_CMD_SET_WOL_MAGIC = 0x00000113,	/* Wake On Lan Magic Packet */
@@ -1647,6 +1648,9 @@ int ql_mb_get_fw_state(struct ql_adapter *qdev);
 int ql_cam_route_initialize(struct ql_adapter *qdev);
 int ql_read_mpi_reg(struct ql_adapter *qdev, u32 reg, u32 *data);
 int ql_mb_about_fw(struct ql_adapter *qdev);
+int ql_wol(struct ql_adapter *qdev);
+int ql_mb_wol_set_magic(struct ql_adapter *qdev, u32 enable_wol);
+int ql_mb_wol_mode(struct ql_adapter *qdev, u32 wol);
 int ql_mb_set_led_cfg(struct ql_adapter *qdev, u32 led_config);
 int ql_mb_get_led_cfg(struct ql_adapter *qdev);
 void ql_link_on(struct ql_adapter *qdev);
diff --git a/drivers/net/qlge/qlge_ethtool.c b/drivers/net/qlge/qlge_ethtool.c
index 0c0549b..019f35f 100644
--- a/drivers/net/qlge/qlge_ethtool.c
+++ b/drivers/net/qlge/qlge_ethtool.c
@@ -371,6 +371,36 @@ static void ql_get_drvinfo(struct net_device *ndev,
 	drvinfo->eedump_len = 0;
 }
 
+static void ql_get_wol(struct net_device *ndev, struct ethtool_wolinfo *wol)
+{
+	struct ql_adapter *qdev = netdev_priv(ndev);
+	/* What we support. */
+	wol->supported = WAKE_MAGIC;
+	/* What we've currently got set. */
+	wol->wolopts = qdev->wol;
+}
+
+static int ql_set_wol(struct net_device *ndev, struct ethtool_wolinfo *wol)
+{
+	struct ql_adapter *qdev = netdev_priv(ndev);
+	int status;
+
+	if (wol->wolopts & ~WAKE_MAGIC)
+		return -EINVAL;
+	qdev->wol = wol->wolopts;
+
+	QPRINTK(qdev, DRV, INFO, "Set wol option 0x%x on %s\n",
+			 qdev->wol, ndev->name);
+	if (!qdev->wol) {
+		u32 wol = 0;
+		status = ql_mb_wol_mode(qdev, wol);
+		QPRINTK(qdev, DRV, ERR, "WOL %s (wol code 0x%x) on %s\n",
+			(status == 0) ? "cleared sucessfully" : "clear failed",
+			wol, qdev->ndev->name);
+	}
+
+	return 0;
+}
 
 static int ql_phys_id(struct net_device *ndev, u32 data)
 {
@@ -523,6 +553,8 @@ static void ql_set_msglevel(struct net_device *ndev, u32 value)
 const struct ethtool_ops qlge_ethtool_ops = {
 	.get_settings = ql_get_settings,
 	.get_drvinfo = ql_get_drvinfo,
+	.get_wol = ql_get_wol,
+	.set_wol = ql_set_wol,
 	.get_msglevel = ql_get_msglevel,
 	.set_msglevel = ql_set_msglevel,
 	.get_link = ethtool_op_get_link,
diff --git a/drivers/net/qlge/qlge_main.c b/drivers/net/qlge/qlge_main.c
index 4935710..fb8209c 100644
--- a/drivers/net/qlge/qlge_main.c
+++ b/drivers/net/qlge/qlge_main.c
@@ -3334,6 +3334,22 @@ static int ql_adapter_initialize(struct ql_adapter *qdev)
 	 * the same MAC address.
 	 */
 	ql_write32(qdev, RST_FO, RST_FO_RR_MASK | RST_FO_RR_RCV_FUNC_CQ);
+	/* Reroute all packets to our Interface.
+	 * They may have been routed to MPI firmware
+	 * due to WOL.
+	 */
+	value = ql_read32(qdev, MGMT_RCV_CFG);
+	value &= ~MGMT_RCV_CFG_RM;
+	mask = 0xffff0000;
+
+	/* Sticky reg needs clearing due to WOL. */
+	ql_write32(qdev, MGMT_RCV_CFG, mask);
+	ql_write32(qdev, MGMT_RCV_CFG, mask | value);
+
+	/* Default WOL is enable on Mezz cards */
+	if (qdev->pdev->subsystem_device == 0x0068 ||
+			qdev->pdev->subsystem_device == 0x0180)
+		qdev->wol = WAKE_MAGIC;
 
 	/* Start up the rx queues. */
 	for (i = 0; i < qdev->rx_ring_count; i++) {
@@ -3448,6 +3464,55 @@ static void ql_display_dev_info(struct net_device *ndev)
 	QPRINTK(qdev, PROBE, INFO, "MAC address %pM\n", ndev->dev_addr);
 }
 
+int ql_wol(struct ql_adapter *qdev)
+{
+	int status = 0;
+	u32 wol = MB_WOL_DISABLE;
+
+	/* The CAM is still intact after a reset, but if we
+	 * are doing WOL, then we may need to program the
+	 * routing regs. We would also need to issue the mailbox
+	 * commands to instruct the MPI what to do per the ethtool
+	 * settings.
+	 */
+
+	if (qdev->wol & (WAKE_ARP | WAKE_MAGICSECURE | WAKE_PHY | WAKE_UCAST |
+			WAKE_MCAST | WAKE_BCAST)) {
+		QPRINTK(qdev, IFDOWN, ERR,
+			"Unsupported WOL paramter. qdev->wol = 0x%x.\n",
+			qdev->wol);
+		return -EINVAL;
+	}
+
+	if (qdev->wol & WAKE_MAGIC) {
+		status = ql_mb_wol_set_magic(qdev, 1);
+		if (status) {
+			QPRINTK(qdev, IFDOWN, ERR,
+				"Failed to set magic packet on %s.\n",
+				qdev->ndev->name);
+			return status;
+		} else
+			QPRINTK(qdev, DRV, INFO,
+				"Enabled magic packet successfully on %s.\n",
+				qdev->ndev->name);
+
+		wol |= MB_WOL_MAGIC_PKT;
+	}
+
+	if (qdev->wol) {
+		/* Reroute all packets to Management Interface */
+		ql_write32(qdev, MGMT_RCV_CFG, (MGMT_RCV_CFG_RM |
+			(MGMT_RCV_CFG_RM << 16)));
+		wol |= MB_WOL_MODE_ON;
+		status = ql_mb_wol_mode(qdev, wol);
+		QPRINTK(qdev, DRV, ERR, "WOL %s (wol code 0x%x) on %s\n",
+			(status == 0) ? "Sucessfully set" : "Failed", wol,
+			qdev->ndev->name);
+	}
+
+	return status;
+}
+
 static int ql_adapter_down(struct ql_adapter *qdev)
 {
 	int i, status = 0;
@@ -4285,6 +4350,7 @@ static int qlge_suspend(struct pci_dev *pdev, pm_message_t state)
 			return err;
 	}
 
+	ql_wol(qdev);
 	err = pci_save_state(pdev);
 	if (err)
 		return err;
diff --git a/drivers/net/qlge/qlge_mpi.c b/drivers/net/qlge/qlge_mpi.c
index 14d76f1..80b6853 100644
--- a/drivers/net/qlge/qlge_mpi.c
+++ b/drivers/net/qlge/qlge_mpi.c
@@ -702,6 +702,76 @@ int ql_mb_get_port_cfg(struct ql_adapter *qdev)
 	return status;
 }
 
+int ql_mb_wol_mode(struct ql_adapter *qdev, u32 wol)
+{
+	struct mbox_params mbc;
+	struct mbox_params *mbcp = &mbc;
+	int status;
+
+	memset(mbcp, 0, sizeof(struct mbox_params));
+
+	mbcp->in_count = 2;
+	mbcp->out_count = 1;
+
+	mbcp->mbox_in[0] = MB_CMD_SET_WOL_MODE;
+	mbcp->mbox_in[1] = wol;
+
+
+	status = ql_mailbox_command(qdev, mbcp);
+	if (status)
+		return status;
+
+	if (mbcp->mbox_out[0] != MB_CMD_STS_GOOD) {
+		QPRINTK(qdev, DRV, ERR,
+			"Failed to set WOL mode.\n");
+		status = -EIO;
+	}
+	return status;
+}
+
+int ql_mb_wol_set_magic(struct ql_adapter *qdev, u32 enable_wol)
+{
+	struct mbox_params mbc;
+	struct mbox_params *mbcp = &mbc;
+	int status;
+	u8 *addr = qdev->ndev->dev_addr;
+
+	memset(mbcp, 0, sizeof(struct mbox_params));
+
+	mbcp->in_count = 8;
+	mbcp->out_count = 1;
+
+	mbcp->mbox_in[0] = MB_CMD_SET_WOL_MAGIC;
+	if (enable_wol) {
+		mbcp->mbox_in[1] = (u32)addr[0];
+		mbcp->mbox_in[2] = (u32)addr[1];
+		mbcp->mbox_in[3] = (u32)addr[2];
+		mbcp->mbox_in[4] = (u32)addr[3];
+		mbcp->mbox_in[5] = (u32)addr[4];
+		mbcp->mbox_in[6] = (u32)addr[5];
+		mbcp->mbox_in[7] = 0;
+	} else {
+		mbcp->mbox_in[1] = 0;
+		mbcp->mbox_in[2] = 1;
+		mbcp->mbox_in[3] = 1;
+		mbcp->mbox_in[4] = 1;
+		mbcp->mbox_in[5] = 1;
+		mbcp->mbox_in[6] = 1;
+		mbcp->mbox_in[7] = 0;
+	}
+
+	status = ql_mailbox_command(qdev, mbcp);
+	if (status)
+		return status;
+
+	if (mbcp->mbox_out[0] != MB_CMD_STS_GOOD) {
+		QPRINTK(qdev, DRV, ERR,
+			"Failed to set WOL mode.\n");
+		status = -EIO;
+	}
+	return status;
+}
+
 /* IDC - Inter Device Communication...
  * Some firmware commands require consent of adjacent FCOE
  * function.  This function waits for the OK, or a
-- 
1.6.0.2

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