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pasemi_mac: basic ethtool support

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First cut at ethtool support, to be completed over time.

Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Jeff Garzik <jgarzik@pobox.com>
This commit is contained in:
Olof Johansson 2008-02-20 20:57:59 -06:00
parent 251567848f
commit e37c772e36
4 changed files with 189 additions and 19 deletions
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3
drivers/net/Makefile
View file

@ -218,7 +218,8 @@ obj-$(CONFIG_SMC911X) += smc911x.o
obj-$(CONFIG_BFIN_MAC) += bfin_mac.o
obj-$(CONFIG_DM9000) += dm9000.o
obj-$(CONFIG_FEC_8XX) += fec_8xx/
obj-$(CONFIG_PASEMI_MAC) += pasemi_mac.o
obj-$(CONFIG_PASEMI_MAC) += pasemi_mac_driver.o
pasemi_mac_driver-objs := pasemi_mac.o pasemi_mac_ethtool.o
obj-$(CONFIG_MLX4_CORE) += mlx4/
obj-$(CONFIG_ENC28J60) += enc28j60.o

26
drivers/net/pasemi_mac.c
View file

@ -55,12 +55,6 @@
* - Multiqueue RX/TX
*/
/* Must be a power of two */
#define RX_RING_SIZE 2048
#define TX_RING_SIZE 4096
#define CS_RING_SIZE (TX_RING_SIZE*2)
#define LRO_MAX_AGGR 64
#define PE_MIN_MTU 64
@ -77,17 +71,6 @@
NETIF_MSG_RX_ERR | \
NETIF_MSG_TX_ERR)
#define TX_DESC(tx, num) ((tx)->chan.ring_virt[(num) & (TX_RING_SIZE-1)])
#define TX_DESC_INFO(tx, num) ((tx)->ring_info[(num) & (TX_RING_SIZE-1)])
#define RX_DESC(rx, num) ((rx)->chan.ring_virt[(num) & (RX_RING_SIZE-1)])
#define RX_DESC_INFO(rx, num) ((rx)->ring_info[(num) & (RX_RING_SIZE-1)])
#define RX_BUFF(rx, num) ((rx)->buffers[(num) & (RX_RING_SIZE-1)])
#define CS_DESC(cs, num) ((cs)->chan.ring_virt[(num) & (CS_RING_SIZE-1)])
#define RING_USED(ring) (((ring)->next_to_fill - (ring)->next_to_clean) \
& ((ring)->size - 1))
#define RING_AVAIL(ring) ((ring->size) - RING_USED(ring))
MODULE_LICENSE("GPL");
MODULE_AUTHOR ("Olof Johansson <olof@lixom.net>");
MODULE_DESCRIPTION("PA Semi PWRficient Ethernet driver");
@ -96,6 +79,8 @@ static int debug = -1; /* -1 == use DEFAULT_MSG_ENABLE as value */
module_param(debug, int, 0);
MODULE_PARM_DESC(debug, "PA Semi MAC bitmapped debugging message enable value");
extern const struct ethtool_ops pasemi_mac_ethtool_ops;
static int translation_enabled(void)
{
#if defined(CONFIG_PPC_PASEMI_IOMMU_DMA_FORCE)
@ -1148,7 +1133,7 @@ static int pasemi_mac_open(struct net_device *dev)
{
struct pasemi_mac *mac = netdev_priv(dev);
unsigned int flags;
int ret;
int i, ret;
flags = PAS_MAC_CFG_TXP_FCE | PAS_MAC_CFG_TXP_FPC(3) |
PAS_MAC_CFG_TXP_SL(3) | PAS_MAC_CFG_TXP_COB(0xf) |
@ -1171,6 +1156,10 @@ static int pasemi_mac_open(struct net_device *dev)
goto out_tx_ring;
}
/* Zero out rmon counters */
for (i = 0; i < 32; i++)
write_mac_reg(mac, PAS_MAC_RMON(i), 0);
/* 0x3ff with 33MHz clock is about 31us */
write_iob_reg(PAS_IOB_DMA_COM_TIMEOUTCFG,
PAS_IOB_DMA_COM_TIMEOUTCFG_TCNT(0x3ff));
@ -1812,6 +1801,7 @@ pasemi_mac_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
mac->bufsz = dev->mtu + ETH_HLEN + ETH_FCS_LEN + LOCAL_SKB_ALIGN + 128;
dev->change_mtu = pasemi_mac_change_mtu;
dev->ethtool_ops = &pasemi_mac_ethtool_ops;
if (err)
goto out;

20
drivers/net/pasemi_mac.h
View file

@ -26,6 +26,12 @@
#include <linux/spinlock.h>
#include <linux/phy.h>
/* Must be a power of two */
#define RX_RING_SIZE 2048
#define TX_RING_SIZE 4096
#define CS_RING_SIZE (TX_RING_SIZE*2)
#define MAX_LRO_DESCRIPTORS 8
#define MAX_CS 2
@ -103,6 +109,16 @@ struct pasemi_mac_buffer {
dma_addr_t dma;
};
#define TX_DESC(tx, num) ((tx)->chan.ring_virt[(num) & (TX_RING_SIZE-1)])
#define TX_DESC_INFO(tx, num) ((tx)->ring_info[(num) & (TX_RING_SIZE-1)])
#define RX_DESC(rx, num) ((rx)->chan.ring_virt[(num) & (RX_RING_SIZE-1)])
#define RX_DESC_INFO(rx, num) ((rx)->ring_info[(num) & (RX_RING_SIZE-1)])
#define RX_BUFF(rx, num) ((rx)->buffers[(num) & (RX_RING_SIZE-1)])
#define CS_DESC(cs, num) ((cs)->chan.ring_virt[(num) & (CS_RING_SIZE-1)])
#define RING_USED(ring) (((ring)->next_to_fill - (ring)->next_to_clean) \
& ((ring)->size - 1))
#define RING_AVAIL(ring) ((ring->size) - RING_USED(ring))
/* PCI register offsets and formats */
@ -114,6 +130,7 @@ enum {
PAS_MAC_CFG_ADR0 = 0x8c,
PAS_MAC_CFG_ADR1 = 0x90,
PAS_MAC_CFG_TXP = 0x98,
PAS_MAC_CFG_RMON = 0x100,
PAS_MAC_IPC_CHNL = 0x208,
};
@ -185,6 +202,8 @@ enum {
#define PAS_MAC_CFG_TXP_TIFG(x) (((x) << PAS_MAC_CFG_TXP_TIFG_S) & \
PAS_MAC_CFG_TXP_TIFG_M)
#define PAS_MAC_RMON(r) (0x100+(r)*4)
#define PAS_MAC_IPC_CHNL_DCHNO_M 0x003f0000
#define PAS_MAC_IPC_CHNL_DCHNO_S 16
#define PAS_MAC_IPC_CHNL_DCHNO(x) (((x) << PAS_MAC_IPC_CHNL_DCHNO_S) & \
@ -194,4 +213,5 @@ enum {
#define PAS_MAC_IPC_CHNL_BCH(x) (((x) << PAS_MAC_IPC_CHNL_BCH_S) & \
PAS_MAC_IPC_CHNL_BCH_M)
#endif /* PASEMI_MAC_H */

159
drivers/net/pasemi_mac_ethtool.c Normal file
View file

@ -0,0 +1,159 @@
/*
* Copyright (C) 2006-2008 PA Semi, Inc
*
* Ethtool hooks for the PA Semi PWRficient onchip 1G/10G Ethernet MACs
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/netdevice.h>
#include <linux/ethtool.h>
#include <linux/pci.h>
#include <linux/inet_lro.h>
#include <asm/pasemi_dma.h>
#include "pasemi_mac.h"
static struct {
const char str[ETH_GSTRING_LEN];
} ethtool_stats_keys[] = {
{ "rx-drops" },
{ "rx-bytes" },
{ "rx-packets" },
{ "rx-broadcast-packets" },
{ "rx-multicast-packets" },
{ "rx-crc-errors" },
{ "rx-undersize-errors" },
{ "rx-oversize-errors" },
{ "rx-short-fragment-errors" },
{ "rx-jabber-errors" },
{ "rx-64-byte-packets" },
{ "rx-65-127-byte-packets" },
{ "rx-128-255-byte-packets" },
{ "rx-256-511-byte-packets" },
{ "rx-512-1023-byte-packets" },
{ "rx-1024-1518-byte-packets" },
{ "rx-pause-frames" },
{ "tx-bytes" },
{ "tx-packets" },
{ "tx-broadcast-packets" },
{ "tx-multicast-packets" },
{ "tx-collisions" },
{ "tx-late-collisions" },
{ "tx-excessive-collisions" },
{ "tx-crc-errors" },
{ "tx-undersize-errors" },
{ "tx-oversize-errors" },
{ "tx-64-byte-packets" },
{ "tx-65-127-byte-packets" },
{ "tx-128-255-byte-packets" },
{ "tx-256-511-byte-packets" },
{ "tx-512-1023-byte-packets" },
{ "tx-1024-1518-byte-packets" },
};
static int
pasemi_mac_ethtool_get_settings(struct net_device *netdev,
struct ethtool_cmd *cmd)
{
struct pasemi_mac *mac = netdev_priv(netdev);
struct phy_device *phydev = mac->phydev;
return phy_ethtool_gset(phydev, cmd);
}
static void
pasemi_mac_ethtool_get_drvinfo(struct net_device *netdev,
struct ethtool_drvinfo *drvinfo)
{
struct pasemi_mac *mac;
mac = netdev_priv(netdev);
/* clear and fill out info */
memset(drvinfo, 0, sizeof(struct ethtool_drvinfo));
strncpy(drvinfo->driver, "pasemi_mac", 12);
strcpy(drvinfo->version, "N/A");
strcpy(drvinfo->fw_version, "N/A");
strncpy(drvinfo->bus_info, pci_name(mac->pdev), 32);
}
static u32
pasemi_mac_ethtool_get_msglevel(struct net_device *netdev)
{
struct pasemi_mac *mac = netdev_priv(netdev);
return mac->msg_enable;
}
static void
pasemi_mac_ethtool_set_msglevel(struct net_device *netdev,
u32 level)
{
struct pasemi_mac *mac = netdev_priv(netdev);
mac->msg_enable = level;
}
static void
pasemi_mac_ethtool_get_ringparam(struct net_device *netdev,
struct ethtool_ringparam *ering)
{
struct pasemi_mac *mac = netdev->priv;
ering->tx_max_pending = TX_RING_SIZE/2;
ering->tx_pending = RING_USED(mac->tx)/2;
ering->rx_max_pending = RX_RING_SIZE/4;
ering->rx_pending = RING_USED(mac->rx)/4;
}
static int pasemi_mac_get_sset_count(struct net_device *netdev, int sset)
{
switch (sset) {
case ETH_SS_STATS:
return ARRAY_SIZE(ethtool_stats_keys);
default:
return -EOPNOTSUPP;
}
}
static void pasemi_mac_get_ethtool_stats(struct net_device *netdev,
struct ethtool_stats *stats, u64 *data)
{
struct pasemi_mac *mac = netdev->priv;
int i;
data[0] = pasemi_read_dma_reg(PAS_DMA_RXINT_RCMDSTA(mac->dma_if))
>> PAS_DMA_RXINT_RCMDSTA_DROPS_S;
for (i = 0; i < 32; i++)
data[1+i] = pasemi_read_mac_reg(mac->dma_if, PAS_MAC_RMON(i));
}
static void pasemi_mac_get_strings(struct net_device *netdev, u32 stringset,
u8 *data)
{
memcpy(data, ethtool_stats_keys, sizeof(ethtool_stats_keys));
}
const struct ethtool_ops pasemi_mac_ethtool_ops = {
.get_settings = pasemi_mac_ethtool_get_settings,
.get_drvinfo = pasemi_mac_ethtool_get_drvinfo,
.get_msglevel = pasemi_mac_ethtool_get_msglevel,
.set_msglevel = pasemi_mac_ethtool_set_msglevel,
.get_link = ethtool_op_get_link,
.get_ringparam = pasemi_mac_ethtool_get_ringparam,
.get_strings = pasemi_mac_get_strings,
.get_sset_count = pasemi_mac_get_sset_count,
.get_ethtool_stats = pasemi_mac_get_ethtool_stats,
};