diff options
| -rw-r--r-- | drivers/net/ethernet/marvell/mvpp2.c | 98 |
1 files changed, 75 insertions, 23 deletions
diff --git a/drivers/net/ethernet/marvell/mvpp2.c b/drivers/net/ethernet/marvell/mvpp2.c index ede4f6af0159..ac0a0dc8f157 100644 --- a/drivers/net/ethernet/marvell/mvpp2.c +++ b/drivers/net/ethernet/marvell/mvpp2.c @@ -815,6 +815,7 @@ enum mvpp2_prs_l3_cast { #define MVPP22_RSS_TABLE_ENTRIES 32 /* BM constants */ +#define MVPP2_BM_JUMBO_BUF_NUM 512 #define MVPP2_BM_LONG_BUF_NUM 1024 #define MVPP2_BM_SHORT_BUF_NUM 2048 #define MVPP2_BM_POOL_SIZE_MAX (16*1024 - MVPP2_BM_POOL_PTR_ALIGN/4) @@ -826,12 +827,14 @@ enum mvpp2_prs_l3_cast { #define MVPP2_BM_SHORT_FRAME_SIZE 512 #define MVPP2_BM_LONG_FRAME_SIZE 2048 +#define MVPP2_BM_JUMBO_FRAME_SIZE 10240 /* BM short pool packet size * These value assure that for SWF the total number * of bytes allocated for each buffer will be 512 */ #define MVPP2_BM_SHORT_PKT_SIZE MVPP2_RX_MAX_PKT_SIZE(MVPP2_BM_SHORT_FRAME_SIZE) #define MVPP2_BM_LONG_PKT_SIZE MVPP2_RX_MAX_PKT_SIZE(MVPP2_BM_LONG_FRAME_SIZE) +#define MVPP2_BM_JUMBO_PKT_SIZE MVPP2_RX_MAX_PKT_SIZE(MVPP2_BM_JUMBO_FRAME_SIZE) #define MVPP21_ADDR_SPACE_SZ 0 #define MVPP22_ADDR_SPACE_SZ SZ_64K @@ -842,6 +845,7 @@ enum mvpp2_prs_l3_cast { enum mvpp2_bm_pool_log_num { MVPP2_BM_SHORT, MVPP2_BM_LONG, + MVPP2_BM_JUMBO, MVPP2_BM_POOLS_NUM }; @@ -4393,6 +4397,10 @@ static void mvpp2_setup_bm_pool(void) /* Long pool */ mvpp2_pools[MVPP2_BM_LONG].buf_num = MVPP2_BM_LONG_BUF_NUM; mvpp2_pools[MVPP2_BM_LONG].pkt_size = MVPP2_BM_LONG_PKT_SIZE; + + /* Jumbo pool */ + mvpp2_pools[MVPP2_BM_JUMBO].buf_num = MVPP2_BM_JUMBO_BUF_NUM; + mvpp2_pools[MVPP2_BM_JUMBO].pkt_size = MVPP2_BM_JUMBO_PKT_SIZE; } /* Attach long pool to rxq */ @@ -4596,15 +4604,28 @@ mvpp2_bm_pool_use(struct mvpp2_port *port, unsigned pool, int pkt_size) static int mvpp2_swf_bm_pool_init(struct mvpp2_port *port) { int rxq; + enum mvpp2_bm_pool_log_num long_log_pool, short_log_pool; + + /* If port pkt_size is higher than 1518B: + * HW Long pool - SW Jumbo pool, HW Short pool - SW Long pool + * else: HW Long pool - SW Long pool, HW Short pool - SW Short pool + */ + if (port->pkt_size > MVPP2_BM_LONG_PKT_SIZE) { + long_log_pool = MVPP2_BM_JUMBO; + short_log_pool = MVPP2_BM_LONG; + } else { + long_log_pool = MVPP2_BM_LONG; + short_log_pool = MVPP2_BM_SHORT; + } if (!port->pool_long) { port->pool_long = - mvpp2_bm_pool_use(port, MVPP2_BM_LONG, - mvpp2_pools[MVPP2_BM_LONG].pkt_size); + mvpp2_bm_pool_use(port, long_log_pool, + mvpp2_pools[long_log_pool].pkt_size); if (!port->pool_long) return -ENOMEM; - port->pool_long->port_map |= (1 << port->id); + port->pool_long->port_map |= BIT(port->id); for (rxq = 0; rxq < port->nrxqs; rxq++) mvpp2_rxq_long_pool_set(port, rxq, port->pool_long->id); @@ -4612,12 +4633,12 @@ static int mvpp2_swf_bm_pool_init(struct mvpp2_port *port) if (!port->pool_short) { port->pool_short = - mvpp2_bm_pool_use(port, MVPP2_BM_SHORT, - mvpp2_pools[MVPP2_BM_SHORT].pkt_size); + mvpp2_bm_pool_use(port, short_log_pool, + mvpp2_pools[long_log_pool].pkt_size); if (!port->pool_short) return -ENOMEM; - port->pool_short->port_map |= (1 << port->id); + port->pool_short->port_map |= BIT(port->id); for (rxq = 0; rxq < port->nrxqs; rxq++) mvpp2_rxq_short_pool_set(port, rxq, @@ -4630,24 +4651,49 @@ static int mvpp2_swf_bm_pool_init(struct mvpp2_port *port) static int mvpp2_bm_update_mtu(struct net_device *dev, int mtu) { struct mvpp2_port *port = netdev_priv(dev); - struct mvpp2_bm_pool *port_pool = port->pool_long; - int num, pkts_num = port_pool->buf_num; + enum mvpp2_bm_pool_log_num new_long_pool; + int pkt_size = MVPP2_RX_PKT_SIZE(mtu); - /* Update BM pool with new buffer size */ - mvpp2_bm_bufs_free(dev->dev.parent, port->priv, port_pool, - port_pool->buf_num); - if (port_pool->buf_num) { - WARN(1, "cannot free all buffers in pool %d\n", port_pool->id); - return -EIO; + /* If port MTU is higher than 1518B: + * HW Long pool - SW Jumbo pool, HW Short pool - SW Long pool + * else: HW Long pool - SW Long pool, HW Short pool - SW Short pool + */ + if (pkt_size > MVPP2_BM_LONG_PKT_SIZE) + new_long_pool = MVPP2_BM_JUMBO; + else + new_long_pool = MVPP2_BM_LONG; + + if (new_long_pool != port->pool_long->id) { + /* Remove port from old short & long pool */ + port->pool_long = mvpp2_bm_pool_use(port, port->pool_long->id, + port->pool_long->pkt_size); + port->pool_long->port_map &= ~BIT(port->id); + port->pool_long = NULL; + + port->pool_short = mvpp2_bm_pool_use(port, port->pool_short->id, + port->pool_short->pkt_size); + port->pool_short->port_map &= ~BIT(port->id); + port->pool_short = NULL; + + port->pkt_size = pkt_size; + + /* Add port to new short & long pool */ + mvpp2_swf_bm_pool_init(port); + + /* Update L4 checksum when jumbo enable/disable on port */ + if (new_long_pool == MVPP2_BM_JUMBO && port->id != 0) { + dev->features &= ~(NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM); + dev->hw_features &= ~(NETIF_F_IP_CSUM | + NETIF_F_IPV6_CSUM); + } else { + dev->features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM; + dev->hw_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM; + } } - num = mvpp2_bm_bufs_add(port, port_pool, pkts_num); - if (num != pkts_num) { - WARN(1, "pool %d: %d of %d allocated\n", - port_pool->id, num, pkts_num); - return -EIO; - } dev->mtu = mtu; + dev->wanted_features = dev->features; + netdev_update_features(dev); return 0; } @@ -8326,13 +8372,19 @@ static int mvpp2_port_probe(struct platform_device *pdev, dev->features = features | NETIF_F_RXCSUM; dev->hw_features |= features | NETIF_F_RXCSUM | NETIF_F_GRO | NETIF_F_HW_VLAN_CTAG_FILTER; + + if (port->pool_long->id == MVPP2_BM_JUMBO && port->id != 0) { + dev->features &= ~(NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM); + dev->hw_features &= ~(NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM); + } + dev->vlan_features |= features; dev->gso_max_segs = MVPP2_MAX_TSO_SEGS; - /* MTU range: 68 - 9676 */ + /* MTU range: 68 - 9704 */ dev->min_mtu = ETH_MIN_MTU; - /* 9676 == 9700 - 20 and rounding to 8 */ - dev->max_mtu = 9676; + /* 9704 == 9728 - 20 and rounding to 8 */ + dev->max_mtu = MVPP2_BM_JUMBO_PKT_SIZE; err = register_netdev(dev); if (err < 0) { |