diff options
| author | Nicolas Ferre <nicolas.ferre@atmel.com> | 2012-10-31 06:04:56 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-11-01 11:45:58 -0400 |
| commit | d1d1b53d9d28c8e44a72fadae491702b36e2e1fb (patch) | |
| tree | 787fba100363241a9e1a607b8c77978623c74dcf /drivers/net/ethernet | |
| parent | 55054a16a5ecf7202e698b07f00ad8e0dadf7d50 (diff) | |
net/macb: ethtool interface: add register dump feature
Add macb_get_regs() ethtool function and its helper function:
macb_get_regs_len().
The version field is deduced from the IP revision which gives the
"MACB or GEM" information. An additional version field is reserved.
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Reviewed-by: Ben Hutchings <bhutchings@solarflare.com>
Tested-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet')
| -rw-r--r-- | drivers/net/ethernet/cadence/macb.c | 40 | ||||
| -rw-r--r-- | drivers/net/ethernet/cadence/macb.h | 3 |
2 files changed, 43 insertions, 0 deletions
diff --git a/drivers/net/ethernet/cadence/macb.c b/drivers/net/ethernet/cadence/macb.c index c432d417a0dc..78488b4c6fb2 100644 --- a/drivers/net/ethernet/cadence/macb.c +++ b/drivers/net/ethernet/cadence/macb.c @@ -1273,9 +1273,49 @@ static int macb_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) return phy_ethtool_sset(phydev, cmd); } +static int macb_get_regs_len(struct net_device *netdev) +{ + return MACB_GREGS_NBR * sizeof(u32); +} + +static void macb_get_regs(struct net_device *dev, struct ethtool_regs *regs, + void *p) +{ + struct macb *bp = netdev_priv(dev); + unsigned int tail, head; + u32 *regs_buff = p; + + regs->version = (macb_readl(bp, MID) & ((1 << MACB_REV_SIZE) - 1)) + | MACB_GREGS_VERSION; + + tail = macb_tx_ring_wrap(bp->tx_tail); + head = macb_tx_ring_wrap(bp->tx_head); + + regs_buff[0] = macb_readl(bp, NCR); + regs_buff[1] = macb_or_gem_readl(bp, NCFGR); + regs_buff[2] = macb_readl(bp, NSR); + regs_buff[3] = macb_readl(bp, TSR); + regs_buff[4] = macb_readl(bp, RBQP); + regs_buff[5] = macb_readl(bp, TBQP); + regs_buff[6] = macb_readl(bp, RSR); + regs_buff[7] = macb_readl(bp, IMR); + + regs_buff[8] = tail; + regs_buff[9] = head; + regs_buff[10] = macb_tx_dma(bp, tail); + regs_buff[11] = macb_tx_dma(bp, head); + + if (macb_is_gem(bp)) { + regs_buff[12] = gem_readl(bp, USRIO); + regs_buff[13] = gem_readl(bp, DMACFG); + } +} + const struct ethtool_ops macb_ethtool_ops = { .get_settings = macb_get_settings, .set_settings = macb_set_settings, + .get_regs_len = macb_get_regs_len, + .get_regs = macb_get_regs, .get_link = ethtool_op_get_link, .get_ts_info = ethtool_op_get_ts_info, }; diff --git a/drivers/net/ethernet/cadence/macb.h b/drivers/net/ethernet/cadence/macb.h index 024a270a792a..232dca6b5839 100644 --- a/drivers/net/ethernet/cadence/macb.h +++ b/drivers/net/ethernet/cadence/macb.h @@ -10,6 +10,9 @@ #ifndef _MACB_H #define _MACB_H +#define MACB_GREGS_NBR 16 +#define MACB_GREGS_VERSION 1 + /* MACB register offsets */ #define MACB_NCR 0x0000 #define MACB_NCFGR 0x0004 |