diff options
Diffstat (limited to 'drivers/net/ethernet/apm')
| -rw-r--r-- | drivers/net/ethernet/apm/xgene/xgene_enet_hw.c | 41 | ||||
| -rw-r--r-- | drivers/net/ethernet/apm/xgene/xgene_enet_hw.h | 2 | ||||
| -rw-r--r-- | drivers/net/ethernet/apm/xgene/xgene_enet_main.c | 39 | ||||
| -rw-r--r-- | drivers/net/ethernet/apm/xgene/xgene_enet_main.h | 2 | ||||
| -rw-r--r-- | drivers/net/ethernet/apm/xgene/xgene_enet_sgmac.c | 52 | ||||
| -rw-r--r-- | drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.c | 42 |
6 files changed, 149 insertions, 29 deletions
diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c b/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c index 725109b964c3..009fb8e401d1 100644 --- a/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c +++ b/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c @@ -697,8 +697,48 @@ static int xgene_enet_reset(struct xgene_enet_pdata *pdata) return 0; } +static void xgene_enet_clear(struct xgene_enet_pdata *pdata, + struct xgene_enet_desc_ring *ring) +{ + u32 addr, val, data; + + val = xgene_enet_ring_bufnum(ring->id); + + if (xgene_enet_is_bufpool(ring->id)) { + addr = ENET_CFGSSQMIFPRESET_ADDR; + data = BIT(val - 0x20); + } else { + addr = ENET_CFGSSQMIWQRESET_ADDR; + data = BIT(val); + } + + xgene_enet_wr_ring_if(pdata, addr, data); +} + static void xgene_gport_shutdown(struct xgene_enet_pdata *pdata) { + struct xgene_enet_desc_ring *ring; + u32 pb, val; + int i; + + pb = 0; + for (i = 0; i < pdata->rxq_cnt; i++) { + ring = pdata->rx_ring[i]->buf_pool; + + val = xgene_enet_ring_bufnum(ring->id); + pb |= BIT(val - 0x20); + } + xgene_enet_wr_ring_if(pdata, ENET_CFGSSQMIFPRESET_ADDR, pb); + + pb = 0; + for (i = 0; i < pdata->txq_cnt; i++) { + ring = pdata->tx_ring[i]; + + val = xgene_enet_ring_bufnum(ring->id); + pb |= BIT(val); + } + xgene_enet_wr_ring_if(pdata, ENET_CFGSSQMIWQRESET_ADDR, pb); + if (!IS_ERR(pdata->clk)) clk_disable_unprepare(pdata->clk); } @@ -901,6 +941,7 @@ const struct xgene_mac_ops xgene_gmac_ops = { const struct xgene_port_ops xgene_gport_ops = { .reset = xgene_enet_reset, + .clear = xgene_enet_clear, .cle_bypass = xgene_enet_cle_bypass, .shutdown = xgene_gport_shutdown, }; diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_hw.h b/drivers/net/ethernet/apm/xgene/xgene_enet_hw.h index e840f9633734..eec55c1d41db 100644 --- a/drivers/net/ethernet/apm/xgene/xgene_enet_hw.h +++ b/drivers/net/ethernet/apm/xgene/xgene_enet_hw.h @@ -167,6 +167,8 @@ enum xgene_enet_rm { #define TX_DV_GATE_EN0 BIT(2) #define RX_DV_GATE_EN0 BIT(1) #define RESUME_RX0 BIT(0) +#define ENET_CFGSSQMIFPRESET_ADDR 0x14 +#define ENET_CFGSSQMIWQRESET_ADDR 0x1c #define ENET_CFGSSQMIWQASSOC_ADDR 0xe0 #define ENET_CFGSSQMIFPQASSOC_ADDR 0xdc #define ENET_CFGSSQMIQMLITEFPQASSOC_ADDR 0xf0 diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_main.c b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c index 8da3860691ee..f79950ab9277 100644 --- a/drivers/net/ethernet/apm/xgene/xgene_enet_main.c +++ b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c @@ -102,25 +102,13 @@ static u8 xgene_enet_hdr_len(const void *data) static void xgene_enet_delete_bufpool(struct xgene_enet_desc_ring *buf_pool) { - struct xgene_enet_pdata *pdata = netdev_priv(buf_pool->ndev); - struct xgene_enet_raw_desc16 *raw_desc; - u32 slots = buf_pool->slots - 1; - u32 tail = buf_pool->tail; - u32 userinfo; - int i, len; - - len = pdata->ring_ops->len(buf_pool); - for (i = 0; i < len; i++) { - tail = (tail - 1) & slots; - raw_desc = &buf_pool->raw_desc16[tail]; + int i; - /* Hardware stores descriptor in little endian format */ - userinfo = GET_VAL(USERINFO, le64_to_cpu(raw_desc->m0)); - dev_kfree_skb_any(buf_pool->rx_skb[userinfo]); + /* Free up the buffers held by hardware */ + for (i = 0; i < buf_pool->slots; i++) { + if (buf_pool->rx_skb[i]) + dev_kfree_skb_any(buf_pool->rx_skb[i]); } - - pdata->ring_ops->wr_cmd(buf_pool, -len); - buf_pool->tail = tail; } static irqreturn_t xgene_enet_rx_irq(const int irq, void *data) @@ -481,6 +469,7 @@ static int xgene_enet_rx_frame(struct xgene_enet_desc_ring *rx_ring, XGENE_ENET_MAX_MTU, DMA_FROM_DEVICE); skb_index = GET_VAL(USERINFO, le64_to_cpu(raw_desc->m0)); skb = buf_pool->rx_skb[skb_index]; + buf_pool->rx_skb[skb_index] = NULL; /* checking for error */ status = (GET_VAL(ELERR, le64_to_cpu(raw_desc->m0)) << LERR_LEN) || @@ -720,9 +709,6 @@ static int xgene_enet_open(struct net_device *ndev) if (ret) return ret; - mac_ops->tx_enable(pdata); - mac_ops->rx_enable(pdata); - xgene_enet_napi_enable(pdata); ret = xgene_enet_register_irq(ndev); if (ret) @@ -735,6 +721,8 @@ static int xgene_enet_open(struct net_device *ndev) netif_carrier_off(ndev); } + mac_ops->tx_enable(pdata); + mac_ops->rx_enable(pdata); netif_start_queue(ndev); return ret; @@ -747,15 +735,14 @@ static int xgene_enet_close(struct net_device *ndev) int i; netif_stop_queue(ndev); + mac_ops->tx_disable(pdata); + mac_ops->rx_disable(pdata); if (pdata->phy_mode == PHY_INTERFACE_MODE_RGMII) phy_stop(pdata->phy_dev); else cancel_delayed_work_sync(&pdata->link_work); - mac_ops->tx_disable(pdata); - mac_ops->rx_disable(pdata); - xgene_enet_free_irq(ndev); xgene_enet_napi_disable(pdata); for (i = 0; i < pdata->rxq_cnt; i++) @@ -785,6 +772,9 @@ static void xgene_enet_delete_desc_rings(struct xgene_enet_pdata *pdata) ring = pdata->tx_ring[i]; if (ring) { xgene_enet_delete_ring(ring); + pdata->port_ops->clear(pdata, ring); + if (pdata->cq_cnt) + xgene_enet_delete_ring(ring->cp_ring); pdata->tx_ring[i] = NULL; } } @@ -795,6 +785,7 @@ static void xgene_enet_delete_desc_rings(struct xgene_enet_pdata *pdata) buf_pool = ring->buf_pool; xgene_enet_delete_bufpool(buf_pool); xgene_enet_delete_ring(buf_pool); + pdata->port_ops->clear(pdata, buf_pool); xgene_enet_delete_ring(ring); pdata->rx_ring[i] = NULL; } @@ -1682,8 +1673,8 @@ static int xgene_enet_remove(struct platform_device *pdev) if (pdata->phy_mode == PHY_INTERFACE_MODE_RGMII) xgene_enet_mdio_remove(pdata); unregister_netdev(ndev); - xgene_enet_delete_desc_rings(pdata); pdata->port_ops->shutdown(pdata); + xgene_enet_delete_desc_rings(pdata); free_netdev(ndev); return 0; diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_main.h b/drivers/net/ethernet/apm/xgene/xgene_enet_main.h index aed9f430e0bc..681a47321fd8 100644 --- a/drivers/net/ethernet/apm/xgene/xgene_enet_main.h +++ b/drivers/net/ethernet/apm/xgene/xgene_enet_main.h @@ -148,6 +148,8 @@ struct xgene_mac_ops { struct xgene_port_ops { int (*reset)(struct xgene_enet_pdata *pdata); + void (*clear)(struct xgene_enet_pdata *pdata, + struct xgene_enet_desc_ring *ring); void (*cle_bypass)(struct xgene_enet_pdata *pdata, u32 dst_ring_num, u16 bufpool_id); void (*shutdown)(struct xgene_enet_pdata *pdata); diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_sgmac.c b/drivers/net/ethernet/apm/xgene/xgene_enet_sgmac.c index a3063fd7681f..f1477d244660 100644 --- a/drivers/net/ethernet/apm/xgene/xgene_enet_sgmac.c +++ b/drivers/net/ethernet/apm/xgene/xgene_enet_sgmac.c @@ -137,9 +137,17 @@ static u32 xgene_enet_rd_mac(struct xgene_enet_pdata *p, u32 rd_addr) static int xgene_enet_ecc_init(struct xgene_enet_pdata *p) { struct net_device *ndev = p->ndev; - u32 data; + u32 data, shutdown; int i = 0; + shutdown = xgene_enet_rd_diag_csr(p, ENET_CFG_MEM_RAM_SHUTDOWN_ADDR); + data = xgene_enet_rd_diag_csr(p, ENET_BLOCK_MEM_RDY_ADDR); + + if (!shutdown && data == ~0U) { + netdev_dbg(ndev, "+ ecc_init done, skipping\n"); + return 0; + } + xgene_enet_wr_diag_csr(p, ENET_CFG_MEM_RAM_SHUTDOWN_ADDR, 0); do { usleep_range(100, 110); @@ -464,10 +472,47 @@ static void xgene_enet_cle_bypass(struct xgene_enet_pdata *p, xgene_enet_wr_csr(p, cle_bypass_reg1 + offset, data); } +static void xgene_enet_clear(struct xgene_enet_pdata *pdata, + struct xgene_enet_desc_ring *ring) +{ + u32 addr, val, data; + + val = xgene_enet_ring_bufnum(ring->id); + + if (xgene_enet_is_bufpool(ring->id)) { + addr = ENET_CFGSSQMIFPRESET_ADDR; + data = BIT(val - 0x20); + } else { + addr = ENET_CFGSSQMIWQRESET_ADDR; + data = BIT(val); + } + + xgene_enet_wr_ring_if(pdata, addr, data); +} + static void xgene_enet_shutdown(struct xgene_enet_pdata *p) { - if (!IS_ERR(p->clk)) - clk_disable_unprepare(p->clk); + struct xgene_enet_desc_ring *ring; + u32 pb, val; + int i; + + pb = 0; + for (i = 0; i < p->rxq_cnt; i++) { + ring = p->rx_ring[i]->buf_pool; + + val = xgene_enet_ring_bufnum(ring->id); + pb |= BIT(val - 0x20); + } + xgene_enet_wr_ring_if(p, ENET_CFGSSQMIFPRESET_ADDR, pb); + + pb = 0; + for (i = 0; i < p->txq_cnt; i++) { + ring = p->tx_ring[i]; + + val = xgene_enet_ring_bufnum(ring->id); + pb |= BIT(val); + } + xgene_enet_wr_ring_if(p, ENET_CFGSSQMIWQRESET_ADDR, pb); } static void xgene_enet_link_state(struct work_struct *work) @@ -515,6 +560,7 @@ const struct xgene_mac_ops xgene_sgmac_ops = { const struct xgene_port_ops xgene_sgport_ops = { .reset = xgene_enet_reset, + .clear = xgene_enet_clear, .cle_bypass = xgene_enet_cle_bypass, .shutdown = xgene_enet_shutdown }; diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.c b/drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.c index ba030dc1940b..d0b441934091 100644 --- a/drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.c +++ b/drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.c @@ -292,8 +292,45 @@ static void xgene_enet_xgcle_bypass(struct xgene_enet_pdata *pdata, static void xgene_enet_shutdown(struct xgene_enet_pdata *pdata) { - if (!IS_ERR(pdata->clk)) - clk_disable_unprepare(pdata->clk); + struct xgene_enet_desc_ring *ring; + u32 pb, val; + int i; + + pb = 0; + for (i = 0; i < pdata->rxq_cnt; i++) { + ring = pdata->rx_ring[i]->buf_pool; + + val = xgene_enet_ring_bufnum(ring->id); + pb |= BIT(val - 0x20); + } + xgene_enet_wr_ring_if(pdata, ENET_CFGSSQMIFPRESET_ADDR, pb); + + pb = 0; + for (i = 0; i < pdata->txq_cnt; i++) { + ring = pdata->tx_ring[i]; + + val = xgene_enet_ring_bufnum(ring->id); + pb |= BIT(val); + } + xgene_enet_wr_ring_if(pdata, ENET_CFGSSQMIWQRESET_ADDR, pb); +} + +static void xgene_enet_clear(struct xgene_enet_pdata *pdata, + struct xgene_enet_desc_ring *ring) +{ + u32 addr, val, data; + + val = xgene_enet_ring_bufnum(ring->id); + + if (xgene_enet_is_bufpool(ring->id)) { + addr = ENET_CFGSSQMIFPRESET_ADDR; + data = BIT(val - 0x20); + } else { + addr = ENET_CFGSSQMIWQRESET_ADDR; + data = BIT(val); + } + + xgene_enet_wr_ring_if(pdata, addr, data); } static void xgene_enet_link_state(struct work_struct *work) @@ -340,6 +377,7 @@ const struct xgene_mac_ops xgene_xgmac_ops = { const struct xgene_port_ops xgene_xgport_ops = { .reset = xgene_enet_reset, + .clear = xgene_enet_clear, .cle_bypass = xgene_enet_xgcle_bypass, .shutdown = xgene_enet_shutdown, }; |