[PATCH] ehea: IBM eHEA Ethernet Device Driver

Hi Jeff,

I fixed the __iomem issue and tested the driver with sparse. Looks good so far.
Thanks for your effort.

Jan-Bernd Themann

Signed-off-by: Jan-Bernd Themann <themann@de.ibm.com>

 drivers/net/Kconfig             |    9
 drivers/net/Makefile            |    1
 drivers/net/ehea/Makefile       |    6
 drivers/net/ehea/ehea.h         |  447 ++++++
 drivers/net/ehea/ehea_ethtool.c |  294 ++++
 drivers/net/ehea/ehea_hcall.h   |   51
 drivers/net/ehea/ehea_hw.h      |  287 ++++
 drivers/net/ehea/ehea_main.c    | 2654 ++++++++++++++++++++++++++++++++++++++++
 drivers/net/ehea/ehea_phyp.c    |  705 ++++++++++
 drivers/net/ehea/ehea_phyp.h    |  455 ++++++
 drivers/net/ehea/ehea_qmr.c     |  582 ++++++++
 drivers/net/ehea/ehea_qmr.h     |  358 +++++
 12 files changed, 5849 insertions(+)
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 294 insertions, 0 deletions

diff --git a/drivers/net/ehea/ehea_ethtool.c b/drivers/net/ehea/ehea_ethtool.c
new file mode 100644
index 00000000000..6906af6277c
--- /dev/null
+++ b/drivers/net/ehea/ehea_ethtool.c
@@ -0,0 +1,294 @@
+/*
+ *  linux/drivers/net/ehea/ehea_ethtool.c
+ *
+ *  eHEA ethernet device driver for IBM eServer System p
+ *
+ *  (C) Copyright IBM Corp. 2006
+ *
+ *  Authors:
+ *       Christoph Raisch <raisch@de.ibm.com>
+ *       Jan-Bernd Themann <themann@de.ibm.com>
+ *       Thomas Klein <tklein@de.ibm.com>
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "ehea.h"
+#include "ehea_phyp.h"
+
+static int ehea_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+	struct ehea_port *port = netdev_priv(dev);
+	int ret;
+
+	ret = ehea_sense_port_attr(port);
+
+	if (ret)
+		return ret;
+
+	if (netif_carrier_ok(dev)) {
+		switch(port->port_speed) {
+		case EHEA_SPEED_10M: cmd->speed = SPEED_10; break;
+		case EHEA_SPEED_100M: cmd->speed = SPEED_100; break;
+		case EHEA_SPEED_1G: cmd->speed = SPEED_1000; break;
+		case EHEA_SPEED_10G: cmd->speed = SPEED_10000; break;
+		}
+		cmd->duplex = port->full_duplex == 1 ?
+						     DUPLEX_FULL : DUPLEX_HALF;
+	} else {
+		cmd->speed = -1;
+		cmd->duplex = -1;
+	}
+
+	cmd->supported = (SUPPORTED_10000baseT_Full | SUPPORTED_1000baseT_Full
+		       | SUPPORTED_100baseT_Full |  SUPPORTED_100baseT_Half
+		       | SUPPORTED_10baseT_Full | SUPPORTED_10baseT_Half
+		       | SUPPORTED_Autoneg | SUPPORTED_FIBRE);
+
+	cmd->advertising = (ADVERTISED_10000baseT_Full | ADVERTISED_Autoneg
+			 | ADVERTISED_FIBRE);
+
+	cmd->port = PORT_FIBRE;
+	cmd->autoneg = port->autoneg == 1 ? AUTONEG_ENABLE : AUTONEG_DISABLE;
+
+	return 0;
+}
+
+static int ehea_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+	struct ehea_port *port = netdev_priv(dev);
+	int ret = 0;
+	u32 sp;
+
+	if (cmd->autoneg == AUTONEG_ENABLE) {
+		sp = EHEA_SPEED_AUTONEG;
+		goto doit;
+	}
+
+	switch(cmd->speed) {
+	case SPEED_10:
+		if (cmd->duplex == DUPLEX_FULL)
+			sp = H_SPEED_10M_F;
+		else
+			sp = H_SPEED_10M_H;
+		break;
+
+	case SPEED_100:
+		if (cmd->duplex == DUPLEX_FULL)
+			sp = H_SPEED_100M_F;
+		else
+			sp = H_SPEED_100M_H;
+		break;
+
+	case SPEED_1000:
+		if (cmd->duplex == DUPLEX_FULL)
+			sp = H_SPEED_1G_F;
+		else
+			ret = -EINVAL;
+		break;
+
+	case SPEED_10000:
+		if (cmd->duplex == DUPLEX_FULL)
+			sp = H_SPEED_10G_F;
+		else
+			ret = -EINVAL;
+		break;
+
+	default:
+			ret = -EINVAL;
+		break;
+	}
+
+	if (ret)
+		goto out;
+doit:
+	ret = ehea_set_portspeed(port, sp);
+
+	if (!ret)
+		ehea_info("%s: Port speed succesfully set: %dMbps "
+			  "%s Duplex",
+			  port->netdev->name, port->port_speed,
+			  port->full_duplex == 1 ? "Full" : "Half");
+out:
+	return ret;
+}
+
+static int ehea_nway_reset(struct net_device *dev)
+{
+	struct ehea_port *port = netdev_priv(dev);
+	int ret;
+
+	ret = ehea_set_portspeed(port, EHEA_SPEED_AUTONEG);
+
+	if (!ret)
+		ehea_info("%s: Port speed succesfully set: %dMbps "
+			  "%s Duplex",
+			  port->netdev->name, port->port_speed,
+			  port->full_duplex == 1 ? "Full" : "Half");
+	return ret;
+}
+
+static void ehea_get_drvinfo(struct net_device *dev,
+			       struct ethtool_drvinfo *info)
+{
+	strlcpy(info->driver, DRV_NAME, sizeof(info->driver) - 1);
+	strlcpy(info->version, DRV_VERSION, sizeof(info->version) - 1);
+}
+
+static u32 ehea_get_msglevel(struct net_device *dev)
+{
+	struct ehea_port *port = netdev_priv(dev);
+	return port->msg_enable;
+}
+
+static void ehea_set_msglevel(struct net_device *dev, u32 value)
+{
+	struct ehea_port *port = netdev_priv(dev);
+	port->msg_enable = value;
+}
+
+static u32 ehea_get_rx_csum(struct net_device *dev)
+{
+	return 1;
+}
+
+static char ehea_ethtool_stats_keys[][ETH_GSTRING_LEN] = {
+	{"poll_max_processed"},
+	{"queue_stopped"},
+	{"min_swqe_avail"},
+	{"poll_receive_err"},
+	{"pkt_send"},
+	{"pkt_xmit"},
+	{"send_tasklet"},
+	{"ehea_poll"},
+	{"nwqe"},
+	{"swqe_available_0"},
+	{"sig_comp_iv"},
+	{"swqe_refill_th"},
+	{"port resets"},
+	{"rxo"},
+	{"rx64"},
+	{"rx65"},
+	{"rx128"},
+	{"rx256"},
+	{"rx512"},
+	{"rx1024"},
+	{"txo"},
+	{"tx64"},
+	{"tx65"},
+	{"tx128"},
+	{"tx256"},
+	{"tx512"},
+	{"tx1024"},
+};
+
+static void ehea_get_strings(struct net_device *dev, u32 stringset, u8 *data)
+{
+	if (stringset == ETH_SS_STATS) {
+		memcpy(data, &ehea_ethtool_stats_keys,
+		       sizeof(ehea_ethtool_stats_keys));
+	}
+}
+
+static int ehea_get_stats_count(struct net_device *dev)
+{
+	return ARRAY_SIZE(ehea_ethtool_stats_keys);
+}
+
+static void ehea_get_ethtool_stats(struct net_device *dev,
+				     struct ethtool_stats *stats, u64 *data)
+{
+	u64 hret;
+	int i;
+	struct ehea_port *port = netdev_priv(dev);
+	struct ehea_adapter *adapter = port->adapter;
+	struct ehea_port_res *pr = &port->port_res[0];
+	struct port_state *p_state = &pr->p_state;
+	struct hcp_ehea_port_cb6 *cb6;
+
+	for (i = 0; i < ehea_get_stats_count(dev); i++)
+		data[i] = 0;
+
+	i = 0;
+
+	data[i++] = p_state->poll_max_processed;
+	data[i++] = p_state->queue_stopped;
+	data[i++] = p_state->min_swqe_avail;
+	data[i++] = p_state->poll_receive_errors;
+	data[i++] = p_state->pkt_send;
+	data[i++] = p_state->pkt_xmit;
+	data[i++] = p_state->send_tasklet;
+	data[i++] = p_state->ehea_poll;
+	data[i++] = p_state->nwqe;
+	data[i++] = atomic_read(&port->port_res[0].swqe_avail);
+	data[i++] = port->sig_comp_iv;
+	data[i++] = port->port_res[0].swqe_refill_th;
+	data[i++] = port->resets;
+
+	cb6 = kzalloc(H_CB_ALIGNMENT, GFP_KERNEL);
+	if (!cb6) {
+		ehea_error("no mem for cb6");
+		return;
+	}
+
+	hret = ehea_h_query_ehea_port(adapter->handle, port->logical_port_id,
+				      H_PORT_CB6, H_PORT_CB6_ALL, cb6);
+	if (netif_msg_hw(port))
+		ehea_dump(cb6, sizeof(*cb6), "ehea_get_ethtool_stats");
+
+	if (hret == H_SUCCESS) {
+		data[i++] = cb6->rxo;
+		data[i++] = cb6->rx64;
+		data[i++] = cb6->rx65;
+		data[i++] = cb6->rx128;
+		data[i++] = cb6->rx256;
+		data[i++] = cb6->rx512;
+		data[i++] = cb6->rx1024;
+		data[i++] = cb6->txo;
+		data[i++] = cb6->tx64;
+		data[i++] = cb6->tx65;
+		data[i++] = cb6->tx128;
+		data[i++] = cb6->tx256;
+		data[i++] = cb6->tx512;
+		data[i++] = cb6->tx1024;
+	} else
+		ehea_error("query_ehea_port failed");
+
+	kfree(cb6);
+}
+
+struct ethtool_ops ehea_ethtool_ops = {
+	.get_settings = ehea_get_settings,
+	.get_drvinfo = ehea_get_drvinfo,
+	.get_msglevel = ehea_get_msglevel,
+	.set_msglevel = ehea_set_msglevel,
+	.get_link = ethtool_op_get_link,
+	.get_tx_csum = ethtool_op_get_tx_csum,
+	.get_sg = ethtool_op_get_sg,
+	.get_tso = ethtool_op_get_tso,
+	.set_tso = ethtool_op_set_tso,
+	.get_strings = ehea_get_strings,
+	.get_stats_count = ehea_get_stats_count,
+	.get_ethtool_stats = ehea_get_ethtool_stats,
+	.get_rx_csum = ehea_get_rx_csum,
+	.set_settings = ehea_set_settings,
+	.nway_reset = ehea_nway_reset,		/* Restart autonegotiation */
+};
+
+void ehea_set_ethtool_ops(struct net_device *netdev)
+{
+	SET_ETHTOOL_OPS(netdev, &ehea_ethtool_ops);
+}