diff options
Diffstat (limited to 'drivers/net/ethernet/cavium/thunder/thunder_bgx.c')
| -rw-r--r-- | drivers/net/ethernet/cavium/thunder/thunder_bgx.c | 44 |
1 files changed, 30 insertions, 14 deletions
diff --git a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c index 0dd211605eb1..de90e6aa5a4f 100644 --- a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c +++ b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c @@ -37,9 +37,18 @@ enum MCAST_MODE { #define MCAST_MODE_MASK 0x3 #define BGX_MCAST_MODE(x) (x << 1) +struct dmac_map { + u64 vf_map; + u64 dmac; +}; + struct lmac { struct bgx *bgx; - int dmac; + /* actual number of DMACs configured */ + u8 dmacs_cfg; + /* overal number of possible DMACs could be configured per LMAC */ + u8 dmacs_count; + struct dmac_map *dmacs; /* DMAC:VFs tracking filter array */ u8 mac[ETH_ALEN]; u8 lmac_type; u8 lane_to_sds; @@ -236,6 +245,19 @@ void bgx_set_lmac_mac(int node, int bgx_idx, int lmacid, const u8 *mac) } EXPORT_SYMBOL(bgx_set_lmac_mac); +static void bgx_flush_dmac_cam_filter(struct bgx *bgx, int lmacid) +{ + struct lmac *lmac = NULL; + u8 idx = 0; + + lmac = &bgx->lmac[lmacid]; + /* reset CAM filters */ + for (idx = 0; idx < lmac->dmacs_count; idx++) + bgx_reg_write(bgx, 0, BGX_CMR_RX_DMACX_CAM + + ((lmacid * lmac->dmacs_count) + idx) * + sizeof(u64), 0); +} + void bgx_lmac_rx_tx_enable(int node, int bgx_idx, int lmacid, bool enable) { struct bgx *bgx = get_bgx(node, bgx_idx); @@ -481,18 +503,6 @@ u64 bgx_get_tx_stats(int node, int bgx_idx, int lmac, int idx) } EXPORT_SYMBOL(bgx_get_tx_stats); -static void bgx_flush_dmac_addrs(struct bgx *bgx, int lmac) -{ - u64 offset; - - while (bgx->lmac[lmac].dmac > 0) { - offset = ((bgx->lmac[lmac].dmac - 1) * sizeof(u64)) + - (lmac * MAX_DMAC_PER_LMAC * sizeof(u64)); - bgx_reg_write(bgx, 0, BGX_CMR_RX_DMACX_CAM + offset, 0); - bgx->lmac[lmac].dmac--; - } -} - /* Configure BGX LMAC in internal loopback mode */ void bgx_lmac_internal_loopback(int node, int bgx_idx, int lmac_idx, bool enable) @@ -925,6 +935,11 @@ static int bgx_lmac_enable(struct bgx *bgx, u8 lmacid) bgx_reg_write(bgx, lmacid, BGX_SMUX_TX_MIN_PKT, 60 + 4); } + /* actual number of filters available to exact LMAC */ + lmac->dmacs_count = (RX_DMAC_COUNT / bgx->lmac_count); + lmac->dmacs = kcalloc(lmac->dmacs_count, sizeof(*lmac->dmacs), + GFP_KERNEL); + /* Enable lmac */ bgx_reg_modify(bgx, lmacid, BGX_CMRX_CFG, CMR_EN); @@ -1011,7 +1026,8 @@ static void bgx_lmac_disable(struct bgx *bgx, u8 lmacid) cfg &= ~CMR_EN; bgx_reg_write(bgx, lmacid, BGX_CMRX_CFG, cfg); - bgx_flush_dmac_addrs(bgx, lmacid); + bgx_flush_dmac_cam_filter(bgx, lmacid); + kfree(lmac->dmacs); if ((lmac->lmac_type != BGX_MODE_XFI) && (lmac->lmac_type != BGX_MODE_XLAUI) && |