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net/mlx5e: Introduce mlx5e_channels

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Have a dedicated "channels" handler that will serve as channels
(RQs/SQs/etc..) holder to help with separating channels/parameters
operations, for the downstream fail-safe configuration flow, where we will
create a new instance of mlx5e_channels with the new requested parameters
and switch to the new channels on the fly.

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
This commit is contained in:
Saeed Mahameed 2017-02-06 13:14:34 +02:00
parent be4891af77
commit ff9c852f91
4 changed files with 71 additions and 65 deletions
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9
drivers/net/ethernet/mellanox/mlx5/core/en.h
View File

@ -560,6 +560,11 @@ struct mlx5e_channel {
int cpu;
};
struct mlx5e_channels {
struct mlx5e_channel **c;
unsigned int num;
};
enum mlx5e_traffic_types {
MLX5E_TT_IPV4_TCP,
MLX5E_TT_IPV6_TCP,
@ -736,7 +741,7 @@ struct mlx5e_priv {
struct mutex state_lock; /* Protects Interface state */
struct mlx5e_rq drop_rq;
struct mlx5e_channel **channel;
struct mlx5e_channels channels;
u32 tisn[MLX5E_MAX_NUM_TC];
struct mlx5e_rqt indir_rqt;
struct mlx5e_tir indir_tir[MLX5E_NUM_INDIR_TIRS];
@ -836,7 +841,7 @@ int mlx5e_vlan_rx_kill_vid(struct net_device *dev, __always_unused __be16 proto,
void mlx5e_enable_vlan_filter(struct mlx5e_priv *priv);
void mlx5e_disable_vlan_filter(struct mlx5e_priv *priv);
int mlx5e_modify_rqs_vsd(struct mlx5e_priv *priv, bool vsd);
int mlx5e_modify_channels_vsd(struct mlx5e_channels *chs, bool vsd);
int mlx5e_redirect_rqt(struct mlx5e_priv *priv, u32 rqtn, int sz, int ix);
void mlx5e_build_indir_tir_ctx_hash(struct mlx5e_priv *priv, void *tirc,

27
drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
View File

@ -152,12 +152,9 @@ static bool mlx5e_query_global_pause_combined(struct mlx5e_priv *priv)
}
#define MLX5E_NUM_Q_CNTRS(priv) (NUM_Q_COUNTERS * (!!priv->q_counter))
#define MLX5E_NUM_RQ_STATS(priv) \
(NUM_RQ_STATS * priv->params.num_channels * \
test_bit(MLX5E_STATE_OPENED, &priv->state))
#define MLX5E_NUM_RQ_STATS(priv) (NUM_RQ_STATS * (priv)->channels.num)
#define MLX5E_NUM_SQ_STATS(priv) \
(NUM_SQ_STATS * priv->params.num_channels * priv->params.num_tc * \
test_bit(MLX5E_STATE_OPENED, &priv->state))
(NUM_SQ_STATS * (priv)->channels.num * (priv)->params.num_tc)
#define MLX5E_NUM_PFC_COUNTERS(priv) \
((mlx5e_query_global_pause_combined(priv) + hweight8(mlx5e_query_pfc_combined(priv))) * \
NUM_PPORT_PER_PRIO_PFC_COUNTERS)
@ -262,13 +259,13 @@ static void mlx5e_fill_stats_strings(struct mlx5e_priv *priv, uint8_t *data)
return;
/* per channel counters */
for (i = 0; i < priv->params.num_channels; i++)
for (i = 0; i < priv->channels.num; i++)
for (j = 0; j < NUM_RQ_STATS; j++)
sprintf(data + (idx++) * ETH_GSTRING_LEN,
rq_stats_desc[j].format, i);
for (tc = 0; tc < priv->params.num_tc; tc++)
for (i = 0; i < priv->params.num_channels; i++)
for (i = 0; i < priv->channels.num; i++)
for (j = 0; j < NUM_SQ_STATS; j++)
sprintf(data + (idx++) * ETH_GSTRING_LEN,
sq_stats_desc[j].format,
@ -303,6 +300,7 @@ static void mlx5e_get_ethtool_stats(struct net_device *dev,
struct ethtool_stats *stats, u64 *data)
{
struct mlx5e_priv *priv = netdev_priv(dev);
struct mlx5e_channels *channels;
struct mlx5_priv *mlx5_priv;
int i, j, tc, prio, idx = 0;
unsigned long pfc_combined;
@ -313,6 +311,7 @@ static void mlx5e_get_ethtool_stats(struct net_device *dev,
mutex_lock(&priv->state_lock);
if (test_bit(MLX5E_STATE_OPENED, &priv->state))
mlx5e_update_stats(priv);
channels = &priv->channels;
mutex_unlock(&priv->state_lock);
for (i = 0; i < NUM_SW_COUNTERS; i++)
@ -382,16 +381,16 @@ static void mlx5e_get_ethtool_stats(struct net_device *dev,
return;
/* per channel counters */
for (i = 0; i < priv->params.num_channels; i++)
for (i = 0; i < channels->num; i++)
for (j = 0; j < NUM_RQ_STATS; j++)
data[idx++] =
MLX5E_READ_CTR64_CPU(&priv->channel[i]->rq.stats,
MLX5E_READ_CTR64_CPU(&channels->c[i]->rq.stats,
rq_stats_desc, j);
for (tc = 0; tc < priv->params.num_tc; tc++)
for (i = 0; i < priv->params.num_channels; i++)
for (i = 0; i < channels->num; i++)
for (j = 0; j < NUM_SQ_STATS; j++)
data[idx++] = MLX5E_READ_CTR64_CPU(&priv->channel[i]->sq[tc].stats,
data[idx++] = MLX5E_READ_CTR64_CPU(&channels->c[i]->sq[tc].stats,
sq_stats_desc, j);
}
@ -628,7 +627,6 @@ static int mlx5e_set_coalesce(struct net_device *netdev,
{
struct mlx5e_priv *priv = netdev_priv(netdev);
struct mlx5_core_dev *mdev = priv->mdev;
struct mlx5e_channel *c;
bool restart =
!!coal->use_adaptive_rx_coalesce != priv->params.rx_am_enabled;
bool was_opened;
@ -654,9 +652,8 @@ static int mlx5e_set_coalesce(struct net_device *netdev,
if (!was_opened || restart)
goto out;
for (i = 0; i < priv->params.num_channels; ++i) {
c = priv->channel[i];
for (i = 0; i < priv->channels.num; ++i) {
struct mlx5e_channel *c = priv->channels.c[i];
for (tc = 0; tc < c->num_tc; tc++) {
mlx5_core_modify_cq_moderation(mdev,

86
drivers/net/ethernet/mellanox/mlx5/core/en_main.c
View File

@ -180,8 +180,10 @@ static void mlx5e_update_sw_counters(struct mlx5e_priv *priv)
int i, j;
memset(s, 0, sizeof(*s));
for (i = 0; i < priv->params.num_channels; i++) {
rq_stats = &priv->channel[i]->rq.stats;
for (i = 0; i < priv->channels.num; i++) {
struct mlx5e_channel *c = priv->channels.c[i];
rq_stats = &c->rq.stats;
s->rx_packets += rq_stats->packets;
s->rx_bytes += rq_stats->bytes;
@ -204,7 +206,7 @@ static void mlx5e_update_sw_counters(struct mlx5e_priv *priv)
s->rx_cache_busy += rq_stats->cache_busy;
for (j = 0; j < priv->params.num_tc; j++) {
sq_stats = &priv->channel[i]->sq[j].stats;
sq_stats = &c->sq[j].stats;
s->tx_packets += sq_stats->packets;
s->tx_bytes += sq_stats->bytes;
@ -1067,7 +1069,7 @@ static int mlx5e_alloc_txqsq(struct mlx5e_channel *c,
if (err)
goto err_sq_wq_destroy;
txq_ix = c->ix + tc * priv->params.num_channels;
txq_ix = c->ix + tc * priv->channels.num;
sq->txq = netdev_get_tx_queue(priv->netdev, txq_ix);
priv->txq_to_sq_map[txq_ix] = sq;
@ -1235,7 +1237,7 @@ static int mlx5e_open_txqsq(struct mlx5e_channel *c,
if (err)
goto err_free_txqsq;
txq_ix = c->ix + tc * priv->params.num_channels;
txq_ix = c->ix + tc * priv->channels.num;
tx_rate = priv->tx_rates[txq_ix];
if (tx_rate)
mlx5e_set_sq_maxrate(priv->netdev, sq, tx_rate);
@ -1603,8 +1605,7 @@ static void mlx5e_build_channeltc_to_txq_map(struct mlx5e_priv *priv, int ix)
int i;
for (i = 0; i < priv->profile->max_tc; i++)
priv->channeltc_to_txq_map[ix][i] =
ix + i * priv->params.num_channels;
priv->channeltc_to_txq_map[ix][i] = ix + i * priv->channels.num;
}
static int mlx5e_set_sq_maxrate(struct net_device *dev,
@ -1977,35 +1978,31 @@ static void mlx5e_build_channel_param(struct mlx5e_priv *priv, struct mlx5e_chan
mlx5e_build_ico_cq_param(priv, &cparam->icosq_cq, icosq_log_wq_sz);
}
static int mlx5e_open_channels(struct mlx5e_priv *priv)
static int mlx5e_open_channels(struct mlx5e_priv *priv, struct mlx5e_channels *chs)
{
struct mlx5e_channel_param *cparam;
int nch = priv->params.num_channels;
int err = -ENOMEM;
int i;
int j;
priv->channel = kcalloc(nch, sizeof(struct mlx5e_channel *),
GFP_KERNEL);
chs->num = priv->params.num_channels;
priv->txq_to_sq_map = kcalloc(nch * priv->params.num_tc,
chs->c = kcalloc(chs->num, sizeof(struct mlx5e_channel *), GFP_KERNEL);
priv->txq_to_sq_map = kcalloc(chs->num * priv->params.num_tc,
sizeof(struct mlx5e_sq *), GFP_KERNEL);
cparam = kzalloc(sizeof(struct mlx5e_channel_param), GFP_KERNEL);
if (!priv->channel || !priv->txq_to_sq_map || !cparam)
if (!chs->c || !priv->txq_to_sq_map || !cparam)
goto err_free_txq_to_sq_map;
mlx5e_build_channel_param(priv, cparam);
for (i = 0; i < nch; i++) {
err = mlx5e_open_channel(priv, i, cparam, &priv->channel[i]);
for (i = 0; i < chs->num; i++) {
err = mlx5e_open_channel(priv, i, cparam, &chs->c[i]);
if (err)
goto err_close_channels;
}
for (j = 0; j < nch; j++) {
err = mlx5e_wait_for_min_rx_wqes(&priv->channel[j]->rq);
for (j = 0; j < chs->num; j++) {
err = mlx5e_wait_for_min_rx_wqes(&chs->c[j]->rq);
if (err)
goto err_close_channels;
}
@ -2020,18 +2017,19 @@ static int mlx5e_open_channels(struct mlx5e_priv *priv)
err_close_channels:
for (i--; i >= 0; i--)
mlx5e_close_channel(priv->channel[i]);
mlx5e_close_channel(chs->c[i]);
err_free_txq_to_sq_map:
kfree(priv->txq_to_sq_map);
kfree(priv->channel);
kfree(chs->c);
kfree(cparam);
chs->num = 0;
return err;
}
static void mlx5e_close_channels(struct mlx5e_priv *priv)
{
struct mlx5e_channels *chs = &priv->channels;
int i;
/* FIXME: This is a W/A only for tx timeout watch dog false alarm when
@ -2040,11 +2038,12 @@ static void mlx5e_close_channels(struct mlx5e_priv *priv)
netif_tx_stop_all_queues(priv->netdev);
netif_tx_disable(priv->netdev);
for (i = 0; i < priv->params.num_channels; i++)
mlx5e_close_channel(priv->channel[i]);
for (i = 0; i < chs->num; i++)
mlx5e_close_channel(chs->c[i]);
kfree(priv->txq_to_sq_map);
kfree(priv->channel);
kfree(chs->c);
chs->num = 0;
}
static int mlx5e_rx_hash_fn(int hfunc)
@ -2078,7 +2077,7 @@ static void mlx5e_fill_indir_rqt_rqns(struct mlx5e_priv *priv, void *rqtc)
ix = priv->params.indirection_rqt[ix];
rqn = test_bit(MLX5E_STATE_OPENED, &priv->state) ?
priv->channel[ix]->rq.rqn :
priv->channels.c[ix]->rq.rqn :
priv->drop_rq.rqn;
MLX5_SET(rqtc, rqtc, rq_num[i], rqn);
}
@ -2088,7 +2087,7 @@ static void mlx5e_fill_direct_rqt_rqn(struct mlx5e_priv *priv, void *rqtc,
int ix)
{
u32 rqn = test_bit(MLX5E_STATE_OPENED, &priv->state) ?
priv->channel[ix]->rq.rqn :
priv->channels.c[ix]->rq.rqn :
priv->drop_rq.rqn;
MLX5_SET(rqtc, rqtc, rq_num[0], rqn);
@ -2461,7 +2460,7 @@ int mlx5e_open_locked(struct net_device *netdev)
netif_set_real_num_tx_queues(netdev, num_txqs);
netif_set_real_num_rx_queues(netdev, priv->params.num_channels);
err = mlx5e_open_channels(priv);
err = mlx5e_open_channels(priv, &priv->channels);
if (err) {
netdev_err(netdev, "%s: mlx5e_open_channels failed, %d\n",
__func__, err);
@ -2815,16 +2814,13 @@ void mlx5e_destroy_direct_tirs(struct mlx5e_priv *priv)
mlx5e_destroy_tir(priv->mdev, &priv->direct_tir[i]);
}
int mlx5e_modify_rqs_vsd(struct mlx5e_priv *priv, bool vsd)
int mlx5e_modify_channels_vsd(struct mlx5e_channels *chs, bool vsd)
{
int err = 0;
int i;
if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
return 0;
for (i = 0; i < priv->params.num_channels; i++) {
err = mlx5e_modify_rq_vsd(&priv->channel[i]->rq, vsd);
for (i = 0; i < chs->num; i++) {
err = mlx5e_modify_rq_vsd(&chs->c[i]->rq, vsd);
if (err)
return err;
}
@ -3029,15 +3025,19 @@ static int set_feature_rx_all(struct net_device *netdev, bool enable)
static int set_feature_rx_vlan(struct net_device *netdev, bool enable)
{
struct mlx5e_priv *priv = netdev_priv(netdev);
int err;
int err = 0;
mutex_lock(&priv->state_lock);
priv->params.vlan_strip_disable = !enable;
err = mlx5e_modify_rqs_vsd(priv, !enable);
if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
goto unlock;
err = mlx5e_modify_channels_vsd(&priv->channels, !enable);
if (err)
priv->params.vlan_strip_disable = enable;
unlock:
mutex_unlock(&priv->state_lock);
return err;
@ -3334,7 +3334,7 @@ static void mlx5e_tx_timeout(struct net_device *dev)
netdev_err(dev, "TX timeout detected\n");
for (i = 0; i < priv->params.num_channels * priv->params.num_tc; i++) {
for (i = 0; i < priv->channels.num * priv->params.num_tc; i++) {
struct mlx5e_txqsq *sq = priv->txq_to_sq_map[i];
if (!netif_xmit_stopped(netdev_get_tx_queue(dev, i)))
@ -3401,8 +3401,8 @@ static int mlx5e_xdp_set(struct net_device *netdev, struct bpf_prog *prog)
/* exchanging programs w/o reset, we update ref counts on behalf
* of the channels RQs here.
*/
for (i = 0; i < priv->params.num_channels; i++) {
struct mlx5e_channel *c = priv->channel[i];
for (i = 0; i < priv->channels.num; i++) {
struct mlx5e_channel *c = priv->channels.c[i];
clear_bit(MLX5E_RQ_STATE_ENABLED, &c->rq.state);
napi_synchronize(&c->napi);
@ -3451,10 +3451,12 @@ static int mlx5e_xdp(struct net_device *dev, struct netdev_xdp *xdp)
static void mlx5e_netpoll(struct net_device *dev)
{
struct mlx5e_priv *priv = netdev_priv(dev);
struct mlx5e_channels *chs = &priv->channels;
int i;
for (i = 0; i < priv->params.num_channels; i++)
napi_schedule(&priv->channel[i]->napi);
for (i = 0; i < chs->num; i++)
napi_schedule(&chs->c[i]->napi);
}
#endif

14
drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
View File

@ -102,14 +102,16 @@ static void mlx5e_rep_update_sw_counters(struct mlx5e_priv *priv)
int i, j;
memset(s, 0, sizeof(*s));
for (i = 0; i < priv->params.num_channels; i++) {
rq_stats = &priv->channel[i]->rq.stats;
for (i = 0; i < priv->channels.num; i++) {
struct mlx5e_channel *c = priv->channels.c[i];
rq_stats = &c->rq.stats;
s->rx_packets += rq_stats->packets;
s->rx_bytes += rq_stats->bytes;
for (j = 0; j < priv->params.num_tc; j++) {
sq_stats = &priv->channel[i]->sq[j].stats;
sq_stats = &c->sq[j].stats;
s->tx_packets += sq_stats->packets;
s->tx_bytes += sq_stats->bytes;
@ -190,12 +192,12 @@ int mlx5e_add_sqs_fwd_rules(struct mlx5e_priv *priv)
int n, tc, err, num_sqs = 0;
u16 *sqs;
sqs = kcalloc(priv->params.num_channels * priv->params.num_tc, sizeof(u16), GFP_KERNEL);
sqs = kcalloc(priv->channels.num * priv->params.num_tc, sizeof(u16), GFP_KERNEL);
if (!sqs)
return -ENOMEM;
for (n = 0; n < priv->params.num_channels; n++) {
c = priv->channel[n];
for (n = 0; n < priv->channels.num; n++) {
c = priv->channels.c[n];
for (tc = 0; tc < c->num_tc; tc++)
sqs[num_sqs++] = c->sq[tc].sqn;
}