diff options
Diffstat (limited to 'drivers/net/ethernet/netronome/nfp/nfp_net_common.c')
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/nfp_net_common.c | 57 |
1 files changed, 47 insertions, 10 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c index 6b1fb5708434..de0a5d5ded30 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c @@ -924,7 +924,7 @@ static void nfp_net_write_mac_addr(struct nfp_net *nn, const u8 *addr) */ static void nfp_net_clear_config_and_disable(struct nfp_net *nn) { - u32 new_ctrl, update; + u32 new_ctrl, new_ctrl_w1, update; unsigned int r; int err; @@ -937,14 +937,29 @@ static void nfp_net_clear_config_and_disable(struct nfp_net *nn) if (nn->cap & NFP_NET_CFG_CTRL_RINGCFG) new_ctrl &= ~NFP_NET_CFG_CTRL_RINGCFG; - nn_writeq(nn, NFP_NET_CFG_TXRS_ENABLE, 0); - nn_writeq(nn, NFP_NET_CFG_RXRS_ENABLE, 0); + if (!(nn->cap_w1 & NFP_NET_CFG_CTRL_FREELIST_EN)) { + nn_writeq(nn, NFP_NET_CFG_TXRS_ENABLE, 0); + nn_writeq(nn, NFP_NET_CFG_RXRS_ENABLE, 0); + } nn_writel(nn, NFP_NET_CFG_CTRL, new_ctrl); err = nfp_net_reconfig(nn, update); if (err) nn_err(nn, "Could not disable device: %d\n", err); + if (nn->cap_w1 & NFP_NET_CFG_CTRL_FREELIST_EN) { + new_ctrl_w1 = nn->dp.ctrl_w1; + new_ctrl_w1 &= ~NFP_NET_CFG_CTRL_FREELIST_EN; + nn_writeq(nn, NFP_NET_CFG_TXRS_ENABLE, 0); + nn_writeq(nn, NFP_NET_CFG_RXRS_ENABLE, 0); + + nn_writel(nn, NFP_NET_CFG_CTRL_WORD1, new_ctrl_w1); + err = nfp_net_reconfig(nn, update); + if (err) + nn_err(nn, "Could not disable FREELIST_EN: %d\n", err); + nn->dp.ctrl_w1 = new_ctrl_w1; + } + for (r = 0; r < nn->dp.num_rx_rings; r++) { nfp_net_rx_ring_reset(&nn->dp.rx_rings[r]); if (nfp_net_has_xsk_pool_slow(&nn->dp, nn->dp.rx_rings[r].idx)) @@ -964,11 +979,12 @@ static void nfp_net_clear_config_and_disable(struct nfp_net *nn) */ static int nfp_net_set_config_and_enable(struct nfp_net *nn) { - u32 bufsz, new_ctrl, update = 0; + u32 bufsz, new_ctrl, new_ctrl_w1, update = 0; unsigned int r; int err; new_ctrl = nn->dp.ctrl; + new_ctrl_w1 = nn->dp.ctrl_w1; if (nn->dp.ctrl & NFP_NET_CFG_CTRL_RSS_ANY) { nfp_net_rss_write_key(nn); @@ -1001,16 +1017,25 @@ static int nfp_net_set_config_and_enable(struct nfp_net *nn) bufsz = nn->dp.fl_bufsz - nn->dp.rx_dma_off - NFP_NET_RX_BUF_NON_DATA; nn_writel(nn, NFP_NET_CFG_FLBUFSZ, bufsz); - /* Enable device */ - new_ctrl |= NFP_NET_CFG_CTRL_ENABLE; + /* Enable device + * Step 1: Replace the CTRL_ENABLE by NFP_NET_CFG_CTRL_FREELIST_EN if + * FREELIST_EN exits. + */ + if (nn->cap_w1 & NFP_NET_CFG_CTRL_FREELIST_EN) + new_ctrl_w1 |= NFP_NET_CFG_CTRL_FREELIST_EN; + else + new_ctrl |= NFP_NET_CFG_CTRL_ENABLE; update |= NFP_NET_CFG_UPDATE_GEN; update |= NFP_NET_CFG_UPDATE_MSIX; update |= NFP_NET_CFG_UPDATE_RING; if (nn->cap & NFP_NET_CFG_CTRL_RINGCFG) new_ctrl |= NFP_NET_CFG_CTRL_RINGCFG; + /* Step 2: Send the configuration and write the freelist. + * - The freelist only need to be written once. + */ nn_writel(nn, NFP_NET_CFG_CTRL, new_ctrl); - nn_writel(nn, NFP_NET_CFG_CTRL_WORD1, nn->dp.ctrl_w1); + nn_writel(nn, NFP_NET_CFG_CTRL_WORD1, new_ctrl_w1); err = nfp_net_reconfig(nn, update); if (err) { nfp_net_clear_config_and_disable(nn); @@ -1018,10 +1043,25 @@ static int nfp_net_set_config_and_enable(struct nfp_net *nn) } nn->dp.ctrl = new_ctrl; + nn->dp.ctrl_w1 = new_ctrl_w1; for (r = 0; r < nn->dp.num_rx_rings; r++) nfp_net_rx_ring_fill_freelist(&nn->dp, &nn->dp.rx_rings[r]); + /* Step 3: Do the NFP_NET_CFG_CTRL_ENABLE. Send the configuration. + */ + if (nn->cap_w1 & NFP_NET_CFG_CTRL_FREELIST_EN) { + new_ctrl |= NFP_NET_CFG_CTRL_ENABLE; + nn_writel(nn, NFP_NET_CFG_CTRL, new_ctrl); + + err = nfp_net_reconfig(nn, update); + if (err) { + nfp_net_clear_config_and_disable(nn); + return err; + } + nn->dp.ctrl = new_ctrl; + } + return 0; } @@ -2068,9 +2108,6 @@ static int nfp_net_bridge_setlink(struct net_device *dev, struct nlmsghdr *nlh, if (nla_type(attr) != IFLA_BRIDGE_MODE) continue; - if (nla_len(attr) < sizeof(mode)) - return -EINVAL; - new_ctrl = nn->dp.ctrl; mode = nla_get_u16(attr); if (mode == BRIDGE_MODE_VEPA) |