aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
Diffstat
-rw-r--r--drivers/net/sfc/efx.c3
-rw-r--r--drivers/net/sfc/ethtool.c90
-rw-r--r--drivers/net/sfc/net_driver.h2
-rw-r--r--drivers/net/sfc/nic.c19
-rw-r--r--drivers/net/sfc/nic.h1
5 files changed, 105 insertions, 10 deletions
diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c
index 2a90bf9df913..35b3f2922e5c 100644
--- a/drivers/net/sfc/efx.c
+++ b/drivers/net/sfc/efx.c
@@ -1121,6 +1121,7 @@ static void efx_set_channels(struct efx_nic *efx)
static int efx_probe_nic(struct efx_nic *efx)
{
+ size_t i;
int rc;
netif_dbg(efx, probe, efx->net_dev, "creating NIC\n");
@@ -1136,6 +1137,8 @@ static int efx_probe_nic(struct efx_nic *efx)
if (efx->n_channels > 1)
get_random_bytes(&efx->rx_hash_key, sizeof(efx->rx_hash_key));
+ for (i = 0; i < ARRAY_SIZE(efx->rx_indir_table); i++)
+ efx->rx_indir_table[i] = i % efx->n_rx_channels;
efx_set_channels(efx);
efx->net_dev->real_num_tx_queues = efx->n_tx_channels;
diff --git a/drivers/net/sfc/ethtool.c b/drivers/net/sfc/ethtool.c
index 23372bf5cd59..3b8b0a062749 100644
--- a/drivers/net/sfc/ethtool.c
+++ b/drivers/net/sfc/ethtool.c
@@ -868,6 +868,93 @@ extern int efx_ethtool_reset(struct net_device *net_dev, u32 *flags)
return efx_reset(efx, method);
}
+static int
+efx_ethtool_get_rxnfc(struct net_device *net_dev,
+ struct ethtool_rxnfc *info, void *rules __always_unused)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+
+ switch (info->cmd) {
+ case ETHTOOL_GRXRINGS:
+ info->data = efx->n_rx_channels;
+ return 0;
+
+ case ETHTOOL_GRXFH: {
+ unsigned min_revision = 0;
+
+ info->data = 0;
+ switch (info->flow_type) {
+ case TCP_V4_FLOW:
+ info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
+ /* fall through */
+ case UDP_V4_FLOW:
+ case SCTP_V4_FLOW:
+ case AH_ESP_V4_FLOW:
+ case IPV4_FLOW:
+ info->data |= RXH_IP_SRC | RXH_IP_DST;
+ min_revision = EFX_REV_FALCON_B0;
+ break;
+ case TCP_V6_FLOW:
+ info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
+ /* fall through */
+ case UDP_V6_FLOW:
+ case SCTP_V6_FLOW:
+ case AH_ESP_V6_FLOW:
+ case IPV6_FLOW:
+ info->data |= RXH_IP_SRC | RXH_IP_DST;
+ min_revision = EFX_REV_SIENA_A0;
+ break;
+ default:
+ break;
+ }
+ if (efx_nic_rev(efx) < min_revision)
+ info->data = 0;
+ return 0;
+ }
+
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static int efx_ethtool_get_rxfh_indir(struct net_device *net_dev,
+ struct ethtool_rxfh_indir *indir)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+ size_t copy_size =
+ min_t(size_t, indir->size, ARRAY_SIZE(efx->rx_indir_table));
+
+ if (efx_nic_rev(efx) < EFX_REV_FALCON_B0)
+ return -EOPNOTSUPP;
+
+ indir->size = ARRAY_SIZE(efx->rx_indir_table);
+ memcpy(indir->ring_index, efx->rx_indir_table,
+ copy_size * sizeof(indir->ring_index[0]));
+ return 0;
+}
+
+static int efx_ethtool_set_rxfh_indir(struct net_device *net_dev,
+ const struct ethtool_rxfh_indir *indir)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+ size_t i;
+
+ if (efx_nic_rev(efx) < EFX_REV_FALCON_B0)
+ return -EOPNOTSUPP;
+
+ /* Validate size and indices */
+ if (indir->size != ARRAY_SIZE(efx->rx_indir_table))
+ return -EINVAL;
+ for (i = 0; i < ARRAY_SIZE(efx->rx_indir_table); i++)
+ if (indir->ring_index[i] >= efx->n_rx_channels)
+ return -EINVAL;
+
+ memcpy(efx->rx_indir_table, indir->ring_index,
+ sizeof(efx->rx_indir_table));
+ efx_nic_push_rx_indir_table(efx);
+ return 0;
+}
+
const struct ethtool_ops efx_ethtool_ops = {
.get_settings = efx_ethtool_get_settings,
.set_settings = efx_ethtool_set_settings,
@@ -905,4 +992,7 @@ const struct ethtool_ops efx_ethtool_ops = {
.get_wol = efx_ethtool_get_wol,
.set_wol = efx_ethtool_set_wol,
.reset = efx_ethtool_reset,
+ .get_rxnfc = efx_ethtool_get_rxnfc,
+ .get_rxfh_indir = efx_ethtool_get_rxfh_indir,
+ .set_rxfh_indir = efx_ethtool_set_rxfh_indir,
};
diff --git a/drivers/net/sfc/net_driver.h b/drivers/net/sfc/net_driver.h
index 28f3ff4cff4a..bab836c22719 100644
--- a/drivers/net/sfc/net_driver.h
+++ b/drivers/net/sfc/net_driver.h
@@ -648,6 +648,7 @@ union efx_multicast_hash {
* @n_tx_channels: Number of channels used for TX
* @rx_buffer_len: RX buffer length
* @rx_buffer_order: Order (log2) of number of pages for each RX buffer
+ * @rx_indir_table: Indirection table for RSS
* @int_error_count: Number of internal errors seen recently
* @int_error_expire: Time at which error count will be expired
* @irq_status: Interrupt status buffer
@@ -736,6 +737,7 @@ struct efx_nic {
unsigned int rx_buffer_len;
unsigned int rx_buffer_order;
u8 rx_hash_key[40];
+ u32 rx_indir_table[128];
unsigned int_error_count;
unsigned long int_error_expire;
diff --git a/drivers/net/sfc/nic.c b/drivers/net/sfc/nic.c
index 30836578c1cc..f595d920c7c4 100644
--- a/drivers/net/sfc/nic.c
+++ b/drivers/net/sfc/nic.c
@@ -1484,22 +1484,21 @@ static irqreturn_t efx_msi_interrupt(int irq, void *dev_id)
/* Setup RSS indirection table.
* This maps from the hash value of the packet to RXQ
*/
-static void efx_setup_rss_indir_table(struct efx_nic *efx)
+void efx_nic_push_rx_indir_table(struct efx_nic *efx)
{
- int i = 0;
- unsigned long offset;
+ size_t i = 0;
efx_dword_t dword;
if (efx_nic_rev(efx) < EFX_REV_FALCON_B0)
return;
- for (offset = FR_BZ_RX_INDIRECTION_TBL;
- offset < FR_BZ_RX_INDIRECTION_TBL + 0x800;
- offset += 0x10) {
+ BUILD_BUG_ON(ARRAY_SIZE(efx->rx_indir_table) !=
+ FR_BZ_RX_INDIRECTION_TBL_ROWS);
+
+ for (i = 0; i < FR_BZ_RX_INDIRECTION_TBL_ROWS; i++) {
EFX_POPULATE_DWORD_1(dword, FRF_BZ_IT_QUEUE,
- i % efx->n_rx_channels);
- efx_writed(efx, &dword, offset);
- i++;
+ efx->rx_indir_table[i]);
+ efx_writed_table(efx, &dword, FR_BZ_RX_INDIRECTION_TBL, i);
}
}
@@ -1634,7 +1633,7 @@ void efx_nic_init_common(struct efx_nic *efx)
EFX_INVERT_OWORD(temp);
efx_writeo(efx, &temp, FR_AZ_FATAL_INTR_KER);
- efx_setup_rss_indir_table(efx);
+ efx_nic_push_rx_indir_table(efx);
/* Disable the ugly timer-based TX DMA backoff and allow TX DMA to be
* controlled by the RX FIFO fill level. Set arbitration to one pkt/Q.
diff --git a/drivers/net/sfc/nic.h b/drivers/net/sfc/nic.h
index a39822da081b..0438dc98722d 100644
--- a/drivers/net/sfc/nic.h
+++ b/drivers/net/sfc/nic.h
@@ -207,6 +207,7 @@ extern void falcon_stop_nic_stats(struct efx_nic *efx);
extern void falcon_setup_xaui(struct efx_nic *efx);
extern int falcon_reset_xaui(struct efx_nic *efx);
extern void efx_nic_init_common(struct efx_nic *efx);
+extern void efx_nic_push_rx_indir_table(struct efx_nic *efx);
int efx_nic_alloc_buffer(struct efx_nic *efx, struct efx_buffer *buffer,
unsigned int len);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.