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bnx2x: Support for managing RX indirection table

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Support fetching and retrieving RX indirection table via ethtool.

Signed-off-by: Tom Herbert <therbert@google.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Tom Herbert 2011-02-16 10:27:02 +00:00 committed by David S. Miller
parent f878b995b0
commit ab532cf32b
3 changed files with 75 additions and 5 deletions
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2
drivers/net/bnx2x/bnx2x.h
View File

@ -1076,6 +1076,7 @@ struct bnx2x {
int num_queues;
int disable_tpa;
int int_mode;
u32 *rx_indir_table;
struct tstorm_eth_mac_filter_config mac_filters;
#define BNX2X_ACCEPT_NONE 0x0000
@ -1799,5 +1800,6 @@ static inline u32 reg_poll(struct bnx2x *bp, u32 reg, u32 expected, int ms,
BNX2X_EXTERN int load_count[2][3]; /* per path: 0-common, 1-port0, 2-port1 */
extern void bnx2x_set_ethtool_ops(struct net_device *netdev);
void bnx2x_push_indir_table(struct bnx2x *bp);
#endif /* bnx2x.h */

56
drivers/net/bnx2x/bnx2x_ethtool.c
View File

@ -2134,6 +2134,59 @@ static int bnx2x_phys_id(struct net_device *dev, u32 data)
return 0;
}
static int bnx2x_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *info,
void *rules __always_unused)
{
struct bnx2x *bp = netdev_priv(dev);
switch (info->cmd) {
case ETHTOOL_GRXRINGS:
info->data = BNX2X_NUM_ETH_QUEUES(bp);
return 0;
default:
return -EOPNOTSUPP;
}
}
static int bnx2x_get_rxfh_indir(struct net_device *dev,
struct ethtool_rxfh_indir *indir)
{
struct bnx2x *bp = netdev_priv(dev);
size_t copy_size =
min_t(size_t, indir->size, TSTORM_INDIRECTION_TABLE_SIZE);
if (bp->multi_mode == ETH_RSS_MODE_DISABLED)
return -EOPNOTSUPP;
indir->size = TSTORM_INDIRECTION_TABLE_SIZE;
memcpy(indir->ring_index, bp->rx_indir_table,
copy_size * sizeof(bp->rx_indir_table[0]));
return 0;
}
static int bnx2x_set_rxfh_indir(struct net_device *dev,
const struct ethtool_rxfh_indir *indir)
{
struct bnx2x *bp = netdev_priv(dev);
size_t i;
if (bp->multi_mode == ETH_RSS_MODE_DISABLED)
return -EOPNOTSUPP;
/* Validate size and indices */
if (indir->size != TSTORM_INDIRECTION_TABLE_SIZE)
return -EINVAL;
for (i = 0; i < TSTORM_INDIRECTION_TABLE_SIZE; i++)
if (indir->ring_index[i] >= BNX2X_NUM_ETH_QUEUES(bp))
return -EINVAL;
memcpy(bp->rx_indir_table, indir->ring_index,
indir->size * sizeof(bp->rx_indir_table[0]));
bnx2x_push_indir_table(bp);
return 0;
}
static const struct ethtool_ops bnx2x_ethtool_ops = {
.get_settings = bnx2x_get_settings,
.set_settings = bnx2x_set_settings,
@ -2170,6 +2223,9 @@ static const struct ethtool_ops bnx2x_ethtool_ops = {
.get_strings = bnx2x_get_strings,
.phys_id = bnx2x_phys_id,
.get_ethtool_stats = bnx2x_get_ethtool_stats,
.get_rxnfc = bnx2x_get_rxnfc,
.get_rxfh_indir = bnx2x_get_rxfh_indir,
.set_rxfh_indir = bnx2x_set_rxfh_indir,
};
void bnx2x_set_ethtool_ops(struct net_device *netdev)

22
drivers/net/bnx2x/bnx2x_main.c
View File

@ -4254,7 +4254,7 @@ static void bnx2x_init_eq_ring(struct bnx2x *bp)
min_t(int, MAX_SP_DESC_CNT - MAX_SPQ_PENDING, NUM_EQ_DESC) - 1);
}
static void bnx2x_init_ind_table(struct bnx2x *bp)
void bnx2x_push_indir_table(struct bnx2x *bp)
{
int func = BP_FUNC(bp);
int i;
@ -4262,13 +4262,20 @@ static void bnx2x_init_ind_table(struct bnx2x *bp)
if (bp->multi_mode == ETH_RSS_MODE_DISABLED)
return;
DP(NETIF_MSG_IFUP,
"Initializing indirection table multi_mode %d\n", bp->multi_mode);
for (i = 0; i < TSTORM_INDIRECTION_TABLE_SIZE; i++)
REG_WR8(bp, BAR_TSTRORM_INTMEM +
TSTORM_INDIRECTION_TABLE_OFFSET(func) + i,
bp->fp->cl_id + (i % (bp->num_queues -
NONE_ETH_CONTEXT_USE)));
bp->fp->cl_id + bp->rx_indir_table[i]);
}
static void bnx2x_init_ind_table(struct bnx2x *bp)
{
int i;
for (i = 0; i < TSTORM_INDIRECTION_TABLE_SIZE; i++)
bp->rx_indir_table[i] = i % BNX2X_NUM_ETH_QUEUES(bp);
bnx2x_push_indir_table(bp);
}
void bnx2x_set_storm_rx_mode(struct bnx2x *bp)
@ -6016,6 +6023,8 @@ void bnx2x_free_mem(struct bnx2x *bp)
BNX2X_PCI_FREE(bp->eq_ring, bp->eq_mapping,
BCM_PAGE_SIZE * NUM_EQ_PAGES);
BNX2X_FREE(bp->rx_indir_table);
#undef BNX2X_PCI_FREE
#undef BNX2X_KFREE
}
@ -6146,6 +6155,9 @@ int bnx2x_alloc_mem(struct bnx2x *bp)
/* EQ */
BNX2X_PCI_ALLOC(bp->eq_ring, &bp->eq_mapping,
BCM_PAGE_SIZE * NUM_EQ_PAGES);
BNX2X_ALLOC(bp->rx_indir_table, sizeof(bp->rx_indir_table[0]) *
TSTORM_INDIRECTION_TABLE_SIZE);
return 0;
alloc_mem_err: