diff options
Diffstat (limited to 'drivers/net/ethernet/ti/icssg/icssg_prueth.c')
-rw-r--r-- | drivers/net/ethernet/ti/icssg/icssg_prueth.c | 1966 |
1 files changed, 748 insertions, 1218 deletions
diff --git a/drivers/net/ethernet/ti/icssg/icssg_prueth.c b/drivers/net/ethernet/ti/icssg/icssg_prueth.c index 411898a4f38c..9a75733e3f8f 100644 --- a/drivers/net/ethernet/ti/icssg/icssg_prueth.c +++ b/drivers/net/ethernet/ti/icssg/icssg_prueth.c @@ -13,8 +13,10 @@ #include <linux/dma/ti-cppi5.h> #include <linux/etherdevice.h> #include <linux/genalloc.h> +#include <linux/if_hsr.h> #include <linux/if_vlan.h> #include <linux/interrupt.h> +#include <linux/io-64-nonatomic-hi-lo.h> #include <linux/kernel.h> #include <linux/mfd/syscon.h> #include <linux/module.h> @@ -27,575 +29,27 @@ #include <linux/remoteproc/pruss.h> #include <linux/regmap.h> #include <linux/remoteproc.h> +#include <net/switchdev.h> #include "icssg_prueth.h" #include "icssg_mii_rt.h" +#include "icssg_switchdev.h" #include "../k3-cppi-desc-pool.h" #define PRUETH_MODULE_DESCRIPTION "PRUSS ICSSG Ethernet driver" -/* Netif debug messages possible */ -#define PRUETH_EMAC_DEBUG (NETIF_MSG_DRV | \ - NETIF_MSG_PROBE | \ - NETIF_MSG_LINK | \ - NETIF_MSG_TIMER | \ - NETIF_MSG_IFDOWN | \ - NETIF_MSG_IFUP | \ - NETIF_MSG_RX_ERR | \ - NETIF_MSG_TX_ERR | \ - NETIF_MSG_TX_QUEUED | \ - NETIF_MSG_INTR | \ - NETIF_MSG_TX_DONE | \ - NETIF_MSG_RX_STATUS | \ - NETIF_MSG_PKTDATA | \ - NETIF_MSG_HW | \ - NETIF_MSG_WOL) - -#define prueth_napi_to_emac(napi) container_of(napi, struct prueth_emac, napi_rx) +#define DEFAULT_VID 1 +#define DEFAULT_PORT_MASK 1 +#define DEFAULT_UNTAG_MASK 1 + +#define NETIF_PRUETH_HSR_OFFLOAD_FEATURES (NETIF_F_HW_HSR_FWD | \ + NETIF_F_HW_HSR_DUP | \ + NETIF_F_HW_HSR_TAG_INS | \ + NETIF_F_HW_HSR_TAG_RM) /* CTRLMMR_ICSSG_RGMII_CTRL register bits */ #define ICSSG_CTRL_RGMII_ID_MODE BIT(24) -#define IEP_DEFAULT_CYCLE_TIME_NS 1000000 /* 1 ms */ - -static void prueth_cleanup_rx_chns(struct prueth_emac *emac, - struct prueth_rx_chn *rx_chn, - int max_rflows) -{ - if (rx_chn->desc_pool) - k3_cppi_desc_pool_destroy(rx_chn->desc_pool); - - if (rx_chn->rx_chn) - k3_udma_glue_release_rx_chn(rx_chn->rx_chn); -} - -static void prueth_cleanup_tx_chns(struct prueth_emac *emac) -{ - int i; - - for (i = 0; i < emac->tx_ch_num; i++) { - struct prueth_tx_chn *tx_chn = &emac->tx_chns[i]; - - if (tx_chn->desc_pool) - k3_cppi_desc_pool_destroy(tx_chn->desc_pool); - - if (tx_chn->tx_chn) - k3_udma_glue_release_tx_chn(tx_chn->tx_chn); - - /* Assume prueth_cleanup_tx_chns() is called at the - * end after all channel resources are freed - */ - memset(tx_chn, 0, sizeof(*tx_chn)); - } -} - -static void prueth_ndev_del_tx_napi(struct prueth_emac *emac, int num) -{ - int i; - - for (i = 0; i < num; i++) { - struct prueth_tx_chn *tx_chn = &emac->tx_chns[i]; - - if (tx_chn->irq) - free_irq(tx_chn->irq, tx_chn); - netif_napi_del(&tx_chn->napi_tx); - } -} - -static void prueth_xmit_free(struct prueth_tx_chn *tx_chn, - struct cppi5_host_desc_t *desc) -{ - struct cppi5_host_desc_t *first_desc, *next_desc; - dma_addr_t buf_dma, next_desc_dma; - u32 buf_dma_len; - - first_desc = desc; - next_desc = first_desc; - - cppi5_hdesc_get_obuf(first_desc, &buf_dma, &buf_dma_len); - k3_udma_glue_tx_cppi5_to_dma_addr(tx_chn->tx_chn, &buf_dma); - - dma_unmap_single(tx_chn->dma_dev, buf_dma, buf_dma_len, - DMA_TO_DEVICE); - - next_desc_dma = cppi5_hdesc_get_next_hbdesc(first_desc); - k3_udma_glue_tx_cppi5_to_dma_addr(tx_chn->tx_chn, &next_desc_dma); - while (next_desc_dma) { - next_desc = k3_cppi_desc_pool_dma2virt(tx_chn->desc_pool, - next_desc_dma); - cppi5_hdesc_get_obuf(next_desc, &buf_dma, &buf_dma_len); - k3_udma_glue_tx_cppi5_to_dma_addr(tx_chn->tx_chn, &buf_dma); - - dma_unmap_page(tx_chn->dma_dev, buf_dma, buf_dma_len, - DMA_TO_DEVICE); - - next_desc_dma = cppi5_hdesc_get_next_hbdesc(next_desc); - k3_udma_glue_tx_cppi5_to_dma_addr(tx_chn->tx_chn, &next_desc_dma); - - k3_cppi_desc_pool_free(tx_chn->desc_pool, next_desc); - } - - k3_cppi_desc_pool_free(tx_chn->desc_pool, first_desc); -} - -static int emac_tx_complete_packets(struct prueth_emac *emac, int chn, - int budget) -{ - struct net_device *ndev = emac->ndev; - struct cppi5_host_desc_t *desc_tx; - struct netdev_queue *netif_txq; - struct prueth_tx_chn *tx_chn; - unsigned int total_bytes = 0; - struct sk_buff *skb; - dma_addr_t desc_dma; - int res, num_tx = 0; - void **swdata; - - tx_chn = &emac->tx_chns[chn]; - - while (true) { - res = k3_udma_glue_pop_tx_chn(tx_chn->tx_chn, &desc_dma); - if (res == -ENODATA) - break; - - /* teardown completion */ - if (cppi5_desc_is_tdcm(desc_dma)) { - if (atomic_dec_and_test(&emac->tdown_cnt)) - complete(&emac->tdown_complete); - break; - } - - desc_tx = k3_cppi_desc_pool_dma2virt(tx_chn->desc_pool, - desc_dma); - swdata = cppi5_hdesc_get_swdata(desc_tx); - - skb = *(swdata); - prueth_xmit_free(tx_chn, desc_tx); - - ndev = skb->dev; - ndev->stats.tx_packets++; - ndev->stats.tx_bytes += skb->len; - total_bytes += skb->len; - napi_consume_skb(skb, budget); - num_tx++; - } - - if (!num_tx) - return 0; - - netif_txq = netdev_get_tx_queue(ndev, chn); - netdev_tx_completed_queue(netif_txq, num_tx, total_bytes); - - if (netif_tx_queue_stopped(netif_txq)) { - /* If the TX queue was stopped, wake it now - * if we have enough room. - */ - __netif_tx_lock(netif_txq, smp_processor_id()); - if (netif_running(ndev) && - (k3_cppi_desc_pool_avail(tx_chn->desc_pool) >= - MAX_SKB_FRAGS)) - netif_tx_wake_queue(netif_txq); - __netif_tx_unlock(netif_txq); - } - - return num_tx; -} - -static int emac_napi_tx_poll(struct napi_struct *napi_tx, int budget) -{ - struct prueth_tx_chn *tx_chn = prueth_napi_to_tx_chn(napi_tx); - struct prueth_emac *emac = tx_chn->emac; - int num_tx_packets; - - num_tx_packets = emac_tx_complete_packets(emac, tx_chn->id, budget); - - if (num_tx_packets >= budget) - return budget; - - if (napi_complete_done(napi_tx, num_tx_packets)) - enable_irq(tx_chn->irq); - - return num_tx_packets; -} - -static irqreturn_t prueth_tx_irq(int irq, void *dev_id) -{ - struct prueth_tx_chn *tx_chn = dev_id; - - disable_irq_nosync(irq); - napi_schedule(&tx_chn->napi_tx); - - return IRQ_HANDLED; -} - -static int prueth_ndev_add_tx_napi(struct prueth_emac *emac) -{ - struct prueth *prueth = emac->prueth; - int i, ret; - - for (i = 0; i < emac->tx_ch_num; i++) { - struct prueth_tx_chn *tx_chn = &emac->tx_chns[i]; - - netif_napi_add_tx(emac->ndev, &tx_chn->napi_tx, emac_napi_tx_poll); - ret = request_irq(tx_chn->irq, prueth_tx_irq, - IRQF_TRIGGER_HIGH, tx_chn->name, - tx_chn); - if (ret) { - netif_napi_del(&tx_chn->napi_tx); - dev_err(prueth->dev, "unable to request TX IRQ %d\n", - tx_chn->irq); - goto fail; - } - } - - return 0; -fail: - prueth_ndev_del_tx_napi(emac, i); - return ret; -} - -static int prueth_init_tx_chns(struct prueth_emac *emac) -{ - static const struct k3_ring_cfg ring_cfg = { - .elm_size = K3_RINGACC_RING_ELSIZE_8, - .mode = K3_RINGACC_RING_MODE_RING, - .flags = 0, - .size = PRUETH_MAX_TX_DESC, - }; - struct k3_udma_glue_tx_channel_cfg tx_cfg; - struct device *dev = emac->prueth->dev; - struct net_device *ndev = emac->ndev; - int ret, slice, i; - u32 hdesc_size; - - slice = prueth_emac_slice(emac); - if (slice < 0) - return slice; - - init_completion(&emac->tdown_complete); - - hdesc_size = cppi5_hdesc_calc_size(true, PRUETH_NAV_PS_DATA_SIZE, - PRUETH_NAV_SW_DATA_SIZE); - memset(&tx_cfg, 0, sizeof(tx_cfg)); - tx_cfg.swdata_size = PRUETH_NAV_SW_DATA_SIZE; - tx_cfg.tx_cfg = ring_cfg; - tx_cfg.txcq_cfg = ring_cfg; - - for (i = 0; i < emac->tx_ch_num; i++) { - struct prueth_tx_chn *tx_chn = &emac->tx_chns[i]; - - /* To differentiate channels for SLICE0 vs SLICE1 */ - snprintf(tx_chn->name, sizeof(tx_chn->name), - "tx%d-%d", slice, i); - - tx_chn->emac = emac; - tx_chn->id = i; - tx_chn->descs_num = PRUETH_MAX_TX_DESC; - - tx_chn->tx_chn = - k3_udma_glue_request_tx_chn(dev, tx_chn->name, - &tx_cfg); - if (IS_ERR(tx_chn->tx_chn)) { - ret = PTR_ERR(tx_chn->tx_chn); - tx_chn->tx_chn = NULL; - netdev_err(ndev, - "Failed to request tx dma ch: %d\n", ret); - goto fail; - } - - tx_chn->dma_dev = k3_udma_glue_tx_get_dma_device(tx_chn->tx_chn); - tx_chn->desc_pool = - k3_cppi_desc_pool_create_name(tx_chn->dma_dev, - tx_chn->descs_num, - hdesc_size, - tx_chn->name); - if (IS_ERR(tx_chn->desc_pool)) { - ret = PTR_ERR(tx_chn->desc_pool); - tx_chn->desc_pool = NULL; - netdev_err(ndev, "Failed to create tx pool: %d\n", ret); - goto fail; - } - - ret = k3_udma_glue_tx_get_irq(tx_chn->tx_chn); - if (ret < 0) { - netdev_err(ndev, "failed to get tx irq\n"); - goto fail; - } - tx_chn->irq = ret; - - snprintf(tx_chn->name, sizeof(tx_chn->name), "%s-tx%d", - dev_name(dev), tx_chn->id); - } - - return 0; - -fail: - prueth_cleanup_tx_chns(emac); - return ret; -} - -static int prueth_init_rx_chns(struct prueth_emac *emac, - struct prueth_rx_chn *rx_chn, - char *name, u32 max_rflows, - u32 max_desc_num) -{ - struct k3_udma_glue_rx_channel_cfg rx_cfg; - struct device *dev = emac->prueth->dev; - struct net_device *ndev = emac->ndev; - u32 fdqring_id, hdesc_size; - int i, ret = 0, slice; - - slice = prueth_emac_slice(emac); - if (slice < 0) - return slice; - - /* To differentiate channels for SLICE0 vs SLICE1 */ - snprintf(rx_chn->name, sizeof(rx_chn->name), "%s%d", name, slice); - - hdesc_size = cppi5_hdesc_calc_size(true, PRUETH_NAV_PS_DATA_SIZE, - PRUETH_NAV_SW_DATA_SIZE); - memset(&rx_cfg, 0, sizeof(rx_cfg)); - rx_cfg.swdata_size = PRUETH_NAV_SW_DATA_SIZE; - rx_cfg.flow_id_num = max_rflows; - rx_cfg.flow_id_base = -1; /* udmax will auto select flow id base */ - - /* init all flows */ - rx_chn->dev = dev; - rx_chn->descs_num = max_desc_num; - - rx_chn->rx_chn = k3_udma_glue_request_rx_chn(dev, rx_chn->name, - &rx_cfg); - if (IS_ERR(rx_chn->rx_chn)) { - ret = PTR_ERR(rx_chn->rx_chn); - rx_chn->rx_chn = NULL; - netdev_err(ndev, "Failed to request rx dma ch: %d\n", ret); - goto fail; - } - - rx_chn->dma_dev = k3_udma_glue_rx_get_dma_device(rx_chn->rx_chn); - rx_chn->desc_pool = k3_cppi_desc_pool_create_name(rx_chn->dma_dev, - rx_chn->descs_num, - hdesc_size, - rx_chn->name); - if (IS_ERR(rx_chn->desc_pool)) { - ret = PTR_ERR(rx_chn->desc_pool); - rx_chn->desc_pool = NULL; - netdev_err(ndev, "Failed to create rx pool: %d\n", ret); - goto fail; - } - - emac->rx_flow_id_base = k3_udma_glue_rx_get_flow_id_base(rx_chn->rx_chn); - netdev_dbg(ndev, "flow id base = %d\n", emac->rx_flow_id_base); - - fdqring_id = K3_RINGACC_RING_ID_ANY; - for (i = 0; i < rx_cfg.flow_id_num; i++) { - struct k3_ring_cfg rxring_cfg = { - .elm_size = K3_RINGACC_RING_ELSIZE_8, - .mode = K3_RINGACC_RING_MODE_RING, - .flags = 0, - }; - struct k3_ring_cfg fdqring_cfg = { - .elm_size = K3_RINGACC_RING_ELSIZE_8, - .flags = K3_RINGACC_RING_SHARED, - }; - struct k3_udma_glue_rx_flow_cfg rx_flow_cfg = { - .rx_cfg = rxring_cfg, - .rxfdq_cfg = fdqring_cfg, - .ring_rxq_id = K3_RINGACC_RING_ID_ANY, - .src_tag_lo_sel = - K3_UDMA_GLUE_SRC_TAG_LO_USE_REMOTE_SRC_TAG, - }; - - rx_flow_cfg.ring_rxfdq0_id = fdqring_id; - rx_flow_cfg.rx_cfg.size = max_desc_num; - rx_flow_cfg.rxfdq_cfg.size = max_desc_num; - rx_flow_cfg.rxfdq_cfg.mode = emac->prueth->pdata.fdqring_mode; - - ret = k3_udma_glue_rx_flow_init(rx_chn->rx_chn, - i, &rx_flow_cfg); - if (ret) { - netdev_err(ndev, "Failed to init rx flow%d %d\n", - i, ret); - goto fail; - } - if (!i) - fdqring_id = k3_udma_glue_rx_flow_get_fdq_id(rx_chn->rx_chn, - i); - rx_chn->irq[i] = k3_udma_glue_rx_get_irq(rx_chn->rx_chn, i); - if (rx_chn->irq[i] <= 0) { - ret = rx_chn->irq[i]; - netdev_err(ndev, "Failed to get rx dma irq"); - goto fail; - } - } - - return 0; - -fail: - prueth_cleanup_rx_chns(emac, rx_chn, max_rflows); - return ret; -} - -static int prueth_dma_rx_push(struct prueth_emac *emac, - struct sk_buff *skb, - struct prueth_rx_chn *rx_chn) -{ - struct net_device *ndev = emac->ndev; - struct cppi5_host_desc_t *desc_rx; - u32 pkt_len = skb_tailroom(skb); - dma_addr_t desc_dma; - dma_addr_t buf_dma; - void **swdata; - - desc_rx = k3_cppi_desc_pool_alloc(rx_chn->desc_pool); - if (!desc_rx) { - netdev_err(ndev, "rx push: failed to allocate descriptor\n"); - return -ENOMEM; - } - desc_dma = k3_cppi_desc_pool_virt2dma(rx_chn->desc_pool, desc_rx); - - buf_dma = dma_map_single(rx_chn->dma_dev, skb->data, pkt_len, DMA_FROM_DEVICE); - if (unlikely(dma_mapping_error(rx_chn->dma_dev, buf_dma))) { - k3_cppi_desc_pool_free(rx_chn->desc_pool, desc_rx); - netdev_err(ndev, "rx push: failed to map rx pkt buffer\n"); - return -EINVAL; - } - - cppi5_hdesc_init(desc_rx, CPPI5_INFO0_HDESC_EPIB_PRESENT, - PRUETH_NAV_PS_DATA_SIZE); - k3_udma_glue_rx_dma_to_cppi5_addr(rx_chn->rx_chn, &buf_dma); - cppi5_hdesc_attach_buf(desc_rx, buf_dma, skb_tailroom(skb), buf_dma, skb_tailroom(skb)); - - swdata = cppi5_hdesc_get_swdata(desc_rx); - *swdata = skb; - - return k3_udma_glue_push_rx_chn(rx_chn->rx_chn, 0, - desc_rx, desc_dma); -} - -static u64 icssg_ts_to_ns(u32 hi_sw, u32 hi, u32 lo, u32 cycle_time_ns) -{ - u32 iepcount_lo, iepcount_hi, hi_rollover_count; - u64 ns; - - iepcount_lo = lo & GENMASK(19, 0); - iepcount_hi = (hi & GENMASK(11, 0)) << 12 | lo >> 20; - hi_rollover_count = hi >> 11; - - ns = ((u64)hi_rollover_count) << 23 | (iepcount_hi + hi_sw); - ns = ns * cycle_time_ns + iepcount_lo; - - return ns; -} - -static void emac_rx_timestamp(struct prueth_emac *emac, - struct sk_buff *skb, u32 *psdata) -{ - struct skb_shared_hwtstamps *ssh; - u64 ns; - - u32 hi_sw = readl(emac->prueth->shram.va + - TIMESYNC_FW_WC_COUNT_HI_SW_OFFSET_OFFSET); - ns = icssg_ts_to_ns(hi_sw, psdata[1], psdata[0], - IEP_DEFAULT_CYCLE_TIME_NS); - - ssh = skb_hwtstamps(skb); - memset(ssh, 0, sizeof(*ssh)); - ssh->hwtstamp = ns_to_ktime(ns); -} - -static int emac_rx_packet(struct prueth_emac *emac, u32 flow_id) -{ - struct prueth_rx_chn *rx_chn = &emac->rx_chns; - u32 buf_dma_len, pkt_len, port_id = 0; - struct net_device *ndev = emac->ndev; - struct cppi5_host_desc_t *desc_rx; - struct sk_buff *skb, *new_skb; - dma_addr_t desc_dma, buf_dma; - void **swdata; - u32 *psdata; - int ret; - - ret = k3_udma_glue_pop_rx_chn(rx_chn->rx_chn, flow_id, &desc_dma); - if (ret) { - if (ret != -ENODATA) - netdev_err(ndev, "rx pop: failed: %d\n", ret); - return ret; - } - - if (cppi5_desc_is_tdcm(desc_dma)) /* Teardown ? */ - return 0; - - desc_rx = k3_cppi_desc_pool_dma2virt(rx_chn->desc_pool, desc_dma); - - swdata = cppi5_hdesc_get_swdata(desc_rx); - skb = *swdata; - - psdata = cppi5_hdesc_get_psdata(desc_rx); - /* RX HW timestamp */ - if (emac->rx_ts_enabled) - emac_rx_timestamp(emac, skb, psdata); - - cppi5_hdesc_get_obuf(desc_rx, &buf_dma, &buf_dma_len); - k3_udma_glue_rx_cppi5_to_dma_addr(rx_chn->rx_chn, &buf_dma); - pkt_len = cppi5_hdesc_get_pktlen(desc_rx); - /* firmware adds 4 CRC bytes, strip them */ - pkt_len -= 4; - cppi5_desc_get_tags_ids(&desc_rx->hdr, &port_id, NULL); - - dma_unmap_single(rx_chn->dma_dev, buf_dma, buf_dma_len, DMA_FROM_DEVICE); - k3_cppi_desc_pool_free(rx_chn->desc_pool, desc_rx); - - skb->dev = ndev; - new_skb = netdev_alloc_skb_ip_align(ndev, PRUETH_MAX_PKT_SIZE); - /* if allocation fails we drop the packet but push the - * descriptor back to the ring with old skb to prevent a stall - */ - if (!new_skb) { - ndev->stats.rx_dropped++; - new_skb = skb; - } else { - /* send the filled skb up the n/w stack */ - skb_put(skb, pkt_len); - skb->protocol = eth_type_trans(skb, ndev); - napi_gro_receive(&emac->napi_rx, skb); - ndev->stats.rx_bytes += pkt_len; - ndev->stats.rx_packets++; - } - - /* queue another RX DMA */ - ret = prueth_dma_rx_push(emac, new_skb, &emac->rx_chns); - if (WARN_ON(ret < 0)) { - dev_kfree_skb_any(new_skb); - ndev->stats.rx_errors++; - ndev->stats.rx_dropped++; - } - - return ret; -} - -static void prueth_rx_cleanup(void *data, dma_addr_t desc_dma) -{ - struct prueth_rx_chn *rx_chn = data; - struct cppi5_host_desc_t *desc_rx; - struct sk_buff *skb; - dma_addr_t buf_dma; - u32 buf_dma_len; - void **swdata; - - desc_rx = k3_cppi_desc_pool_dma2virt(rx_chn->desc_pool, desc_dma); - swdata = cppi5_hdesc_get_swdata(desc_rx); - skb = *swdata; - cppi5_hdesc_get_obuf(desc_rx, &buf_dma, &buf_dma_len); - k3_udma_glue_rx_cppi5_to_dma_addr(rx_chn->rx_chn, &buf_dma); - - dma_unmap_single(rx_chn->dma_dev, buf_dma, buf_dma_len, - DMA_FROM_DEVICE); - k3_cppi_desc_pool_free(rx_chn->desc_pool, desc_rx); - - dev_kfree_skb_any(skb); -} - static int emac_get_tx_ts(struct prueth_emac *emac, struct emac_tx_ts_response *rsp) { @@ -661,208 +115,6 @@ static void tx_ts_work(struct prueth_emac *emac) } } -static int prueth_tx_ts_cookie_get(struct prueth_emac *emac) -{ - int i; - - /* search and get the next free slot */ - for (i = 0; i < PRUETH_MAX_TX_TS_REQUESTS; i++) { - if (!emac->tx_ts_skb[i]) { - emac->tx_ts_skb[i] = ERR_PTR(-EBUSY); /* reserve slot */ - return i; - } - } - - return -EBUSY; -} - -/** - * emac_ndo_start_xmit - EMAC Transmit function - * @skb: SKB pointer - * @ndev: EMAC network adapter - * - * Called by the system to transmit a packet - we queue the packet in - * EMAC hardware transmit queue - * Doesn't wait for completion we'll check for TX completion in - * emac_tx_complete_packets(). - * - * Return: enum netdev_tx - */ -static enum netdev_tx emac_ndo_start_xmit(struct sk_buff *skb, struct net_device *ndev) -{ - struct cppi5_host_desc_t *first_desc, *next_desc, *cur_desc; - struct prueth_emac *emac = netdev_priv(ndev); - struct netdev_queue *netif_txq; - struct prueth_tx_chn *tx_chn; - dma_addr_t desc_dma, buf_dma; - int i, ret = 0, q_idx; - bool in_tx_ts = 0; - int tx_ts_cookie; - void **swdata; - u32 pkt_len; - u32 *epib; - - pkt_len = skb_headlen(skb); - q_idx = skb_get_queue_mapping(skb); - - tx_chn = &emac->tx_chns[q_idx]; - netif_txq = netdev_get_tx_queue(ndev, q_idx); - - /* Map the linear buffer */ - buf_dma = dma_map_single(tx_chn->dma_dev, skb->data, pkt_len, DMA_TO_DEVICE); - if (dma_mapping_error(tx_chn->dma_dev, buf_dma)) { - netdev_err(ndev, "tx: failed to map skb buffer\n"); - ret = NETDEV_TX_OK; - goto drop_free_skb; - } - - first_desc = k3_cppi_desc_pool_alloc(tx_chn->desc_pool); - if (!first_desc) { - netdev_dbg(ndev, "tx: failed to allocate descriptor\n"); - dma_unmap_single(tx_chn->dma_dev, buf_dma, pkt_len, DMA_TO_DEVICE); - goto drop_stop_q_busy; - } - - cppi5_hdesc_init(first_desc, CPPI5_INFO0_HDESC_EPIB_PRESENT, - PRUETH_NAV_PS_DATA_SIZE); - cppi5_hdesc_set_pkttype(first_desc, 0); - epib = first_desc->epib; - epib[0] = 0; - epib[1] = 0; - if (skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP && - emac->tx_ts_enabled) { - tx_ts_cookie = prueth_tx_ts_cookie_get(emac); - if (tx_ts_cookie >= 0) { - skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS; - /* Request TX timestamp */ - epib[0] = (u32)tx_ts_cookie; - epib[1] = 0x80000000; /* TX TS request */ - emac->tx_ts_skb[tx_ts_cookie] = skb_get(skb); - in_tx_ts = 1; - } - } - - /* set dst tag to indicate internal qid at the firmware which is at - * bit8..bit15. bit0..bit7 indicates port num for directed - * packets in case of switch mode operation - */ - cppi5_desc_set_tags_ids(&first_desc->hdr, 0, (emac->port_id | (q_idx << 8))); - k3_udma_glue_tx_dma_to_cppi5_addr(tx_chn->tx_chn, &buf_dma); - cppi5_hdesc_attach_buf(first_desc, buf_dma, pkt_len, buf_dma, pkt_len); - swdata = cppi5_hdesc_get_swdata(first_desc); - *swdata = skb; - - /* Handle the case where skb is fragmented in pages */ - cur_desc = first_desc; - for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { - skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; - u32 frag_size = skb_frag_size(frag); - - next_desc = k3_cppi_desc_pool_alloc(tx_chn->desc_pool); - if (!next_desc) { - netdev_err(ndev, - "tx: failed to allocate frag. descriptor\n"); - goto free_desc_stop_q_busy_cleanup_tx_ts; - } - - buf_dma = skb_frag_dma_map(tx_chn->dma_dev, frag, 0, frag_size, - DMA_TO_DEVICE); - if (dma_mapping_error(tx_chn->dma_dev, buf_dma)) { - netdev_err(ndev, "tx: Failed to map skb page\n"); - k3_cppi_desc_pool_free(tx_chn->desc_pool, next_desc); - ret = NETDEV_TX_OK; - goto cleanup_tx_ts; - } - - cppi5_hdesc_reset_hbdesc(next_desc); - k3_udma_glue_tx_dma_to_cppi5_addr(tx_chn->tx_chn, &buf_dma); - cppi5_hdesc_attach_buf(next_desc, - buf_dma, frag_size, buf_dma, frag_size); - - desc_dma = k3_cppi_desc_pool_virt2dma(tx_chn->desc_pool, - next_desc); - k3_udma_glue_tx_dma_to_cppi5_addr(tx_chn->tx_chn, &desc_dma); - cppi5_hdesc_link_hbdesc(cur_desc, desc_dma); - - pkt_len += frag_size; - cur_desc = next_desc; - } - WARN_ON_ONCE(pkt_len != skb->len); - - /* report bql before sending packet */ - netdev_tx_sent_queue(netif_txq, pkt_len); - - cppi5_hdesc_set_pktlen(first_desc, pkt_len); - desc_dma = k3_cppi_desc_pool_virt2dma(tx_chn->desc_pool, first_desc); - /* cppi5_desc_dump(first_desc, 64); */ - - skb_tx_timestamp(skb); /* SW timestamp if SKBTX_IN_PROGRESS not set */ - ret = k3_udma_glue_push_tx_chn(tx_chn->tx_chn, first_desc, desc_dma); - if (ret) { - netdev_err(ndev, "tx: push failed: %d\n", ret); - goto drop_free_descs; - } - - if (in_tx_ts) - atomic_inc(&emac->tx_ts_pending); - - if (k3_cppi_desc_pool_avail(tx_chn->desc_pool) < MAX_SKB_FRAGS) { - netif_tx_stop_queue(netif_txq); - /* Barrier, so that stop_queue visible to other cpus */ - smp_mb__after_atomic(); - - if (k3_cppi_desc_pool_avail(tx_chn->desc_pool) >= - MAX_SKB_FRAGS) - netif_tx_wake_queue(netif_txq); - } - - return NETDEV_TX_OK; - -cleanup_tx_ts: - if (in_tx_ts) { - dev_kfree_skb_any(emac->tx_ts_skb[tx_ts_cookie]); - emac->tx_ts_skb[tx_ts_cookie] = NULL; - } - -drop_free_descs: - prueth_xmit_free(tx_chn, first_desc); - -drop_free_skb: - dev_kfree_skb_any(skb); - - /* error */ - ndev->stats.tx_dropped++; - netdev_err(ndev, "tx: error: %d\n", ret); - - return ret; - -free_desc_stop_q_busy_cleanup_tx_ts: - if (in_tx_ts) { - dev_kfree_skb_any(emac->tx_ts_skb[tx_ts_cookie]); - emac->tx_ts_skb[tx_ts_cookie] = NULL; - } - prueth_xmit_free(tx_chn, first_desc); - -drop_stop_q_busy: - netif_tx_stop_queue(netif_txq); - return NETDEV_TX_BUSY; -} - -static void prueth_tx_cleanup(void *data, dma_addr_t desc_dma) -{ - struct prueth_tx_chn *tx_chn = data; - struct cppi5_host_desc_t *desc_tx; - struct sk_buff *skb; - void **swdata; - - desc_tx = k3_cppi_desc_pool_dma2virt(tx_chn->desc_pool, desc_dma); - swdata = cppi5_hdesc_get_swdata(desc_tx); - skb = *(swdata); - prueth_xmit_free(tx_chn, desc_tx); - - dev_kfree_skb_any(skb); -} - static irqreturn_t prueth_tx_ts_irq(int irq, void *dev_id) { struct prueth_emac *emac = dev_id; @@ -873,20 +125,30 @@ static irqreturn_t prueth_tx_ts_irq(int irq, void *dev_id) return IRQ_HANDLED; } -static irqreturn_t prueth_rx_irq(int irq, void *dev_id) -{ - struct prueth_emac *emac = dev_id; - - disable_irq_nosync(irq); - napi_schedule(&emac->napi_rx); - - return IRQ_HANDLED; -} +static struct icssg_firmwares icssg_hsr_firmwares[] = { + { + .pru = "ti-pruss/am65x-sr2-pru0-pruhsr-fw.elf", + .rtu = "ti-pruss/am65x-sr2-rtu0-pruhsr-fw.elf", + .txpru = "ti-pruss/am65x-sr2-txpru0-pruhsr-fw.elf", + }, + { + .pru = "ti-pruss/am65x-sr2-pru1-pruhsr-fw.elf", + .rtu = "ti-pruss/am65x-sr2-rtu1-pruhsr-fw.elf", + .txpru = "ti-pruss/am65x-sr2-txpru1-pruhsr-fw.elf", + } +}; -struct icssg_firmwares { - char *pru; - char *rtu; - char *txpru; +static struct icssg_firmwares icssg_switch_firmwares[] = { + { + .pru = "ti-pruss/am65x-sr2-pru0-prusw-fw.elf", + .rtu = "ti-pruss/am65x-sr2-rtu0-prusw-fw.elf", + .txpru = "ti-pruss/am65x-sr2-txpru0-prusw-fw.elf", + }, + { + .pru = "ti-pruss/am65x-sr2-pru1-prusw-fw.elf", + .rtu = "ti-pruss/am65x-sr2-rtu1-prusw-fw.elf", + .txpru = "ti-pruss/am65x-sr2-txpru1-prusw-fw.elf", + } }; static struct icssg_firmwares icssg_emac_firmwares[] = { @@ -902,90 +164,152 @@ static struct icssg_firmwares icssg_emac_firmwares[] = { } }; -static int prueth_emac_start(struct prueth *prueth, struct prueth_emac *emac) +static int prueth_start(struct rproc *rproc, const char *fw_name) +{ + int ret; + + ret = rproc_set_firmware(rproc, fw_name); + if (ret) + return ret; + return rproc_boot(rproc); +} + +static void prueth_shutdown(struct rproc *rproc) +{ + rproc_shutdown(rproc); +} + +static int prueth_emac_start(struct prueth *prueth) { struct icssg_firmwares *firmwares; struct device *dev = prueth->dev; - int slice, ret; + int ret, slice; - firmwares = icssg_emac_firmwares; + if (prueth->is_switch_mode) + firmwares = icssg_switch_firmwares; + else if (prueth->is_hsr_offload_mode) + firmwares = icssg_hsr_firmwares; + else + firmwares = icssg_emac_firmwares; - slice = prueth_emac_slice(emac); - if (slice < 0) { - netdev_err(emac->ndev, "invalid port\n"); - return -EINVAL; + for (slice = 0; slice < PRUETH_NUM_MACS; slice++) { + ret = prueth_start(prueth->pru[slice], firmwares[slice].pru); + if (ret) { + dev_err(dev, "failed to boot PRU%d: %d\n", slice, ret); + goto unwind_slices; + } + + ret = prueth_start(prueth->rtu[slice], firmwares[slice].rtu); + if (ret) { + dev_err(dev, "failed to boot RTU%d: %d\n", slice, ret); + rproc_shutdown(prueth->pru[slice]); + goto unwind_slices; + } + + ret = prueth_start(prueth->txpru[slice], firmwares[slice].txpru); + if (ret) { + dev_err(dev, "failed to boot TX_PRU%d: %d\n", slice, ret); + rproc_shutdown(prueth->rtu[slice]); + rproc_shutdown(prueth->pru[slice]); + goto unwind_slices; + } } - ret = icssg_config(prueth, emac, slice); - if (ret) - return ret; + return 0; - ret = rproc_set_firmware(prueth->pru[slice], firmwares[slice].pru); - ret = rproc_boot(prueth->pru[slice]); - if (ret) { - dev_err(dev, "failed to boot PRU%d: %d\n", slice, ret); - return -EINVAL; +unwind_slices: + while (--slice >= 0) { + prueth_shutdown(prueth->txpru[slice]); + prueth_shutdown(prueth->rtu[slice]); + prueth_shutdown(prueth->pru[slice]); } - ret = rproc_set_firmware(prueth->rtu[slice], firmwares[slice].rtu); - ret = rproc_boot(prueth->rtu[slice]); - if (ret) { - dev_err(dev, "failed to boot RTU%d: %d\n", slice, ret); - goto halt_pru; + return ret; +} + +static void prueth_emac_stop(struct prueth *prueth) +{ + int slice; + + for (slice = 0; slice < PRUETH_NUM_MACS; slice++) { + prueth_shutdown(prueth->txpru[slice]); + prueth_shutdown(prueth->rtu[slice]); + prueth_shutdown(prueth->pru[slice]); + } +} + +static int prueth_emac_common_start(struct prueth *prueth) +{ + struct prueth_emac *emac; + int ret = 0; + int slice; + + if (!prueth->emac[ICSS_SLICE0] && !prueth->emac[ICSS_SLICE1]) + return -EINVAL; + + /* clear SMEM and MSMC settings for all slices */ + memset_io(prueth->msmcram.va, 0, prueth->msmcram.size); + memset_io(prueth->shram.va, 0, ICSSG_CONFIG_OFFSET_SLICE1 * PRUETH_NUM_MACS); + + icssg_class_default(prueth->miig_rt, ICSS_SLICE0, 0, false); + icssg_class_default(prueth->miig_rt, ICSS_SLICE1, 0, false); + + if (prueth->is_switch_mode || prueth->is_hsr_offload_mode) + icssg_init_fw_offload_mode(prueth); + else + icssg_init_emac_mode(prueth); + + for (slice = 0; slice < PRUETH_NUM_MACS; slice++) { + emac = prueth->emac[slice]; + if (!emac) + continue; + ret = icssg_config(prueth, emac, slice); + if (ret) + goto disable_class; } - ret = rproc_set_firmware(prueth->txpru[slice], firmwares[slice].txpru); - ret = rproc_boot(prueth->txpru[slice]); + ret = prueth_emac_start(prueth); + if (ret) + goto disable_class; + + emac = prueth->emac[ICSS_SLICE0] ? prueth->emac[ICSS_SLICE0] : + prueth->emac[ICSS_SLICE1]; + ret = icss_iep_init(emac->iep, &prueth_iep_clockops, + emac, IEP_DEFAULT_CYCLE_TIME_NS); if (ret) { - dev_err(dev, "failed to boot TX_PRU%d: %d\n", slice, ret); - goto halt_rtu; + dev_err(prueth->dev, "Failed to initialize IEP module\n"); + goto stop_pruss; } - emac->fw_running = 1; return 0; -halt_rtu: - rproc_shutdown(prueth->rtu[slice]); +stop_pruss: + prueth_emac_stop(prueth); -halt_pru: - rproc_shutdown(prueth->pru[slice]); +disable_class: + icssg_class_disable(prueth->miig_rt, ICSS_SLICE0); + icssg_class_disable(prueth->miig_rt, ICSS_SLICE1); return ret; } -static void prueth_emac_stop(struct prueth_emac *emac) +static int prueth_emac_common_stop(struct prueth *prueth) { - struct prueth *prueth = emac->prueth; - int slice; + struct prueth_emac *emac; - switch (emac->port_id) { - case PRUETH_PORT_MII0: - slice = ICSS_SLICE0; - break; - case PRUETH_PORT_MII1: - slice = ICSS_SLICE1; - break; - default: - netdev_err(emac->ndev, "invalid port\n"); - return; - } + if (!prueth->emac[ICSS_SLICE0] && !prueth->emac[ICSS_SLICE1]) + return -EINVAL; - emac->fw_running = 0; - rproc_shutdown(prueth->txpru[slice]); - rproc_shutdown(prueth->rtu[slice]); - rproc_shutdown(prueth->pru[slice]); -} + icssg_class_disable(prueth->miig_rt, ICSS_SLICE0); + icssg_class_disable(prueth->miig_rt, ICSS_SLICE1); -static void prueth_cleanup_tx_ts(struct prueth_emac *emac) -{ - int i; + prueth_emac_stop(prueth); - for (i = 0; i < PRUETH_MAX_TX_TS_REQUESTS; i++) { - if (emac->tx_ts_skb[i]) { - dev_kfree_skb_any(emac->tx_ts_skb[i]); - emac->tx_ts_skb[i] = NULL; - } - } + emac = prueth->emac[ICSS_SLICE0] ? prueth->emac[ICSS_SLICE0] : + prueth->emac[ICSS_SLICE1]; + icss_iep_exit(emac->iep); + + return 0; } /* called back by PHY layer if there is change in link state of hw port*/ @@ -1039,10 +363,10 @@ static void emac_adjust_link(struct net_device *ndev) icssg_config_ipg(emac); spin_unlock_irqrestore(&emac->lock, flags); icssg_config_set_speed(emac); - emac_set_port_state(emac, ICSSG_EMAC_PORT_FORWARD); + icssg_set_port_state(emac, ICSSG_EMAC_PORT_FORWARD); } else { - emac_set_port_state(emac, ICSSG_EMAC_PORT_DISABLE); + icssg_set_port_state(emac, ICSSG_EMAC_PORT_DISABLE); } } @@ -1055,84 +379,14 @@ static void emac_adjust_link(struct net_device *ndev) } } -static int emac_napi_rx_poll(struct napi_struct *napi_rx, int budget) +static enum hrtimer_restart emac_rx_timer_callback(struct hrtimer *timer) { - struct prueth_emac *emac = prueth_napi_to_emac(napi_rx); + struct prueth_emac *emac = + container_of(timer, struct prueth_emac, rx_hrtimer); int rx_flow = PRUETH_RX_FLOW_DATA; - int flow = PRUETH_MAX_RX_FLOWS; - int num_rx = 0; - int cur_budget; - int ret; - - while (flow--) { - cur_budget = budget - num_rx; - - while (cur_budget--) { - ret = emac_rx_packet(emac, flow); - if (ret) - break; - num_rx++; - } - - if (num_rx >= budget) - break; - } - - if (num_rx < budget && napi_complete_done(napi_rx, num_rx)) - enable_irq(emac->rx_chns.irq[rx_flow]); - - return num_rx; -} - -static int prueth_prepare_rx_chan(struct prueth_emac *emac, - struct prueth_rx_chn *chn, - int buf_size) -{ - struct sk_buff *skb; - int i, ret; - - for (i = 0; i < chn->descs_num; i++) { - skb = __netdev_alloc_skb_ip_align(NULL, buf_size, GFP_KERNEL); - if (!skb) - return -ENOMEM; - ret = prueth_dma_rx_push(emac, skb, chn); - if (ret < 0) { - netdev_err(emac->ndev, - "cannot submit skb for rx chan %s ret %d\n", - chn->name, ret); - kfree_skb(skb); - return ret; - } - } - - return 0; -} - -static void prueth_reset_tx_chan(struct prueth_emac *emac, int ch_num, - bool free_skb) -{ - int i; - - for (i = 0; i < ch_num; i++) { - if (free_skb) - k3_udma_glue_reset_tx_chn(emac->tx_chns[i].tx_chn, - &emac->tx_chns[i], - prueth_tx_cleanup); - k3_udma_glue_disable_tx_chn(emac->tx_chns[i].tx_chn); - } -} - -static void prueth_reset_rx_chan(struct prueth_rx_chn *chn, - int num_flows, bool disable) -{ - int i; - - for (i = 0; i < num_flows; i++) - k3_udma_glue_reset_rx_chn(chn->rx_chn, i, chn, - prueth_rx_cleanup, !!i); - if (disable) - k3_udma_glue_disable_rx_chn(chn->rx_chn); + enable_irq(emac->rx_chns.irq[rx_flow]); + return HRTIMER_NORESTART; } static int emac_phy_connect(struct prueth_emac *emac) @@ -1212,9 +466,6 @@ static void prueth_iep_settime(void *clockops_data, u64 ns) u32 cycletime; int timeout; - if (!emac->fw_running) - return; - sc_descp = emac->prueth->shram.va + TIMESYNC_FW_WC_SETCLOCK_DESC_OFFSET; cycletime = IEP_DEFAULT_CYCLE_TIME_NS; @@ -1225,7 +476,8 @@ static void prueth_iep_settime(void *clockops_data, u64 ns) sc_desc.cyclecounter0_set = cyclecount & GENMASK(31, 0); sc_desc.cyclecounter1_set = (cyclecount & GENMASK(63, 32)) >> 32; sc_desc.iepcount_set = ns % cycletime; - sc_desc.CMP0_current = cycletime - 4; //Count from 0 to (cycle time)-4 + /* Count from 0 to (cycle time) - emac->iep->def_inc */ + sc_desc.CMP0_current = cycletime - emac->iep->def_inc; memcpy_toio(sc_descp, &sc_desc, sizeof(sc_desc)); @@ -1249,6 +501,8 @@ static int prueth_perout_enable(void *clockops_data, struct prueth_emac *emac = clockops_data; u32 reduction_factor = 0, offset = 0; struct timespec64 ts; + u64 current_cycle; + u64 start_offset; u64 ns_period; if (!on) @@ -1287,8 +541,14 @@ static int prueth_perout_enable(void *clockops_data, writel(reduction_factor, emac->prueth->shram.va + TIMESYNC_FW_WC_SYNCOUT_REDUCTION_FACTOR_OFFSET); - writel(0, emac->prueth->shram.va + - TIMESYNC_FW_WC_SYNCOUT_START_TIME_CYCLECOUNT_OFFSET); + current_cycle = icssg_read_time(emac->prueth->shram.va + + TIMESYNC_FW_WC_CYCLECOUNT_OFFSET); + + /* Rounding of current_cycle count to next second */ + start_offset = roundup(current_cycle, MSEC_PER_SEC); + + hi_lo_writeq(start_offset, emac->prueth->shram.va + + TIMESYNC_FW_WC_SYNCOUT_START_TIME_CYCLECOUNT_OFFSET); return 0; } @@ -1299,6 +559,140 @@ const struct icss_iep_clockops prueth_iep_clockops = { .perout_enable = prueth_perout_enable, }; +static int icssg_prueth_add_mcast(struct net_device *ndev, const u8 *addr) +{ + struct net_device *real_dev; + struct prueth_emac *emac; + int port_mask; + u8 vlan_id; + + vlan_id = is_vlan_dev(ndev) ? vlan_dev_vlan_id(ndev) : PRUETH_DFLT_VLAN_MAC; + real_dev = is_vlan_dev(ndev) ? vlan_dev_real_dev(ndev) : ndev; + emac = netdev_priv(real_dev); + + port_mask = BIT(emac->port_id) | icssg_fdb_lookup(emac, addr, vlan_id); + icssg_fdb_add_del(emac, addr, vlan_id, port_mask, true); + icssg_vtbl_modify(emac, vlan_id, port_mask, port_mask, true); + + return 0; +} + +static int icssg_prueth_del_mcast(struct net_device *ndev, const u8 *addr) +{ + struct net_device *real_dev; + struct prueth_emac *emac; + int other_port_mask; + int port_mask; + u8 vlan_id; + + vlan_id = is_vlan_dev(ndev) ? vlan_dev_vlan_id(ndev) : PRUETH_DFLT_VLAN_MAC; + real_dev = is_vlan_dev(ndev) ? vlan_dev_real_dev(ndev) : ndev; + emac = netdev_priv(real_dev); + + port_mask = BIT(emac->port_id); + other_port_mask = port_mask ^ icssg_fdb_lookup(emac, addr, vlan_id); + + icssg_fdb_add_del(emac, addr, vlan_id, port_mask, false); + icssg_vtbl_modify(emac, vlan_id, port_mask, port_mask, false); + + if (other_port_mask) { + icssg_fdb_add_del(emac, addr, vlan_id, other_port_mask, true); + icssg_vtbl_modify(emac, vlan_id, other_port_mask, + other_port_mask, true); + } + + return 0; +} + +static void icssg_prueth_hsr_fdb_add_del(struct prueth_emac *emac, + const u8 *addr, u8 vid, bool add) +{ + icssg_fdb_add_del(emac, addr, vid, + ICSSG_FDB_ENTRY_P0_MEMBERSHIP | + ICSSG_FDB_ENTRY_P1_MEMBERSHIP | + ICSSG_FDB_ENTRY_P2_MEMBERSHIP | + ICSSG_FDB_ENTRY_BLOCK, add); + + if (add) + icssg_vtbl_modify(emac, vid, BIT(emac->port_id), + BIT(emac->port_id), add); +} + +static int icssg_prueth_hsr_add_mcast(struct net_device *ndev, const u8 *addr) +{ + struct net_device *real_dev; + struct prueth_emac *emac; + u8 vlan_id, i; + + vlan_id = is_vlan_dev(ndev) ? vlan_dev_vlan_id(ndev) : PRUETH_DFLT_VLAN_HSR; + real_dev = is_vlan_dev(ndev) ? vlan_dev_real_dev(ndev) : ndev; + + if (is_hsr_master(real_dev)) { + for (i = HSR_PT_SLAVE_A; i < HSR_PT_INTERLINK; i++) { + emac = netdev_priv(hsr_get_port_ndev(real_dev, i)); + if (!emac) + return -EINVAL; + icssg_prueth_hsr_fdb_add_del(emac, addr, vlan_id, + true); + } + } else { + emac = netdev_priv(real_dev); + icssg_prueth_hsr_fdb_add_del(emac, addr, vlan_id, true); + } + + return 0; +} + +static int icssg_prueth_hsr_del_mcast(struct net_device *ndev, const u8 *addr) +{ + struct net_device *real_dev; + struct prueth_emac *emac; + u8 vlan_id, i; + + vlan_id = is_vlan_dev(ndev) ? vlan_dev_vlan_id(ndev) : PRUETH_DFLT_VLAN_HSR; + real_dev = is_vlan_dev(ndev) ? vlan_dev_real_dev(ndev) : ndev; + + if (is_hsr_master(real_dev)) { + for (i = HSR_PT_SLAVE_A; i < HSR_PT_INTERLINK; i++) { + emac = netdev_priv(hsr_get_port_ndev(real_dev, i)); + if (!emac) + return -EINVAL; + icssg_prueth_hsr_fdb_add_del(emac, addr, vlan_id, + false); + } + } else { + emac = netdev_priv(real_dev); + icssg_prueth_hsr_fdb_add_del(emac, addr, vlan_id, false); + } + + return 0; +} + +static int icssg_update_vlan_mcast(struct net_device *vdev, int vid, + void *args) +{ + struct prueth_emac *emac = args; + + if (!vdev || !vid) + return 0; + + netif_addr_lock_bh(vdev); + __hw_addr_sync_multiple(&emac->vlan_mcast_list[vid], &vdev->mc, + vdev->addr_len); + netif_addr_unlock_bh(vdev); + + if (emac->prueth->is_hsr_offload_mode) + __hw_addr_sync_dev(&emac->vlan_mcast_list[vid], vdev, + icssg_prueth_hsr_add_mcast, + icssg_prueth_hsr_del_mcast); + else + __hw_addr_sync_dev(&emac->vlan_mcast_list[vid], vdev, + icssg_prueth_add_mcast, + icssg_prueth_del_mcast); + + return 0; +} + /** * emac_ndo_open - EMAC device open * @ndev: network adapter device @@ -1311,26 +705,19 @@ static int emac_ndo_open(struct net_device *ndev) { struct prueth_emac *emac = netdev_priv(ndev); int ret, i, num_data_chn = emac->tx_ch_num; + struct icssg_flow_cfg __iomem *flow_cfg; struct prueth *prueth = emac->prueth; int slice = prueth_emac_slice(emac); struct device *dev = prueth->dev; int max_rx_flows; int rx_flow; - /* clear SMEM and MSMC settings for all slices */ - if (!prueth->emacs_initialized) { - memset_io(prueth->msmcram.va, 0, prueth->msmcram.size); - memset_io(prueth->shram.va, 0, ICSSG_CONFIG_OFFSET_SLICE1 * PRUETH_NUM_MACS); - } - /* set h/w MAC as user might have re-configured */ ether_addr_copy(emac->mac_addr, ndev->dev_addr); icssg_class_set_mac_addr(prueth->miig_rt, slice, emac->mac_addr); icssg_ft1_set_mac_addr(prueth->miig_rt, slice, emac->mac_addr); - icssg_class_default(prueth->miig_rt, slice, 0); - /* Notify the stack of the actual queue counts. */ ret = netif_set_real_num_tx_queues(ndev, num_data_chn); if (ret) { @@ -1366,18 +753,23 @@ static int emac_ndo_open(struct net_device *ndev) goto cleanup_napi; } - /* reset and start PRU firmware */ - ret = prueth_emac_start(prueth, emac); - if (ret) - goto free_rx_irq; + if (!prueth->emacs_initialized) { + ret = prueth_emac_common_start(prueth); + if (ret) + goto free_rx_irq; + } - icssg_mii_update_mtu(prueth->mii_rt, slice, ndev->max_mtu); + flow_cfg = emac->dram.va + ICSSG_CONFIG_OFFSET + PSI_L_REGULAR_FLOW_ID_BASE_OFFSET; + writew(emac->rx_flow_id_base, &flow_cfg->rx_base_flow); + ret = emac_fdb_flow_id_updated(emac); - if (!prueth->emacs_initialized) { - ret = icss_iep_init(emac->iep, &prueth_iep_clockops, - emac, IEP_DEFAULT_CYCLE_TIME_NS); + if (ret) { + netdev_err(ndev, "Failed to update Rx Flow ID %d", ret); + goto stop; } + icssg_mii_update_mtu(prueth->mii_rt, slice, ndev->max_mtu); + ret = request_threaded_irq(emac->tx_ts_irq, NULL, prueth_tx_ts_irq, IRQF_ONESHOT, dev_name(dev), emac); if (ret) @@ -1422,7 +814,8 @@ reset_rx_chn: free_tx_ts_irq: free_irq(emac->tx_ts_irq, emac); stop: - prueth_emac_stop(emac); + if (!prueth->emacs_initialized) + prueth_emac_common_stop(prueth); free_rx_irq: free_irq(emac->rx_chns.irq[rx_flow], emac); cleanup_napi: @@ -1458,7 +851,10 @@ static int emac_ndo_stop(struct net_device *ndev) if (ndev->phydev) phy_stop(ndev->phydev); - icssg_class_disable(prueth->miig_rt, prueth_emac_slice(emac)); + if (emac->prueth->is_hsr_offload_mode) + __dev_mc_unsync(ndev, icssg_prueth_hsr_del_mcast); + else + __dev_mc_unsync(ndev, icssg_prueth_del_mcast); atomic_set(&emac->tdown_cnt, emac->tx_ch_num); /* ensure new tdown_cnt value is visible */ @@ -1474,8 +870,10 @@ static int emac_ndo_stop(struct net_device *ndev) netdev_err(ndev, "tx teardown timeout\n"); prueth_reset_tx_chan(emac, emac->tx_ch_num, true); - for (i = 0; i < emac->tx_ch_num; i++) + for (i = 0; i < emac->tx_ch_num; i++) { napi_disable(&emac->tx_chns[i].napi_tx); + hrtimer_cancel(&emac->tx_chns[i].tx_hrtimer); + } max_rx_flows = PRUETH_MAX_RX_FLOWS; k3_udma_glue_tdown_rx_chn(emac->rx_chns.rx_chn, true); @@ -1483,6 +881,7 @@ static int emac_ndo_stop(struct net_device *ndev) prueth_reset_rx_chan(&emac->rx_chns, max_rx_flows, true); napi_disable(&emac->napi_rx); + hrtimer_cancel(&emac->rx_hrtimer); cancel_work_sync(&emac->rx_mode_work); @@ -1490,19 +889,13 @@ static int emac_ndo_stop(struct net_device *ndev) cancel_delayed_work_sync(&emac->stats_work); /* stop PRUs */ - prueth_emac_stop(emac); - if (prueth->emacs_initialized == 1) - icss_iep_exit(emac->iep); - - /* stop PRUs */ - prueth_emac_stop(emac); + prueth_emac_common_stop(prueth); free_irq(emac->tx_ts_irq, emac); free_irq(emac->rx_chns.irq[rx_flow], emac); prueth_ndev_del_tx_napi(emac, emac->tx_ch_num); - prueth_cleanup_tx_chns(emac); prueth_cleanup_rx_chns(emac, &emac->rx_chns, max_rx_flows); prueth_cleanup_tx_chns(emac); @@ -1512,11 +905,6 @@ static int emac_ndo_stop(struct net_device *ndev) return 0; } -static void emac_ndo_tx_timeout(struct net_device *ndev, unsigned int txqueue) -{ - ndev->stats.tx_errors++; -} - static void emac_ndo_set_rx_mode_work(struct work_struct *work) { struct prueth_emac *emac = container_of(work, struct prueth_emac, rx_mode_work); @@ -1528,23 +916,35 @@ static void emac_ndo_set_rx_mode_work(struct work_struct *work) promisc = ndev->flags & IFF_PROMISC; allmulti = ndev->flags & IFF_ALLMULTI; - emac_set_port_state(emac, ICSSG_EMAC_PORT_UC_FLOODING_DISABLE); - emac_set_port_state(emac, ICSSG_EMAC_PORT_MC_FLOODING_DISABLE); + icssg_set_port_state(emac, ICSSG_EMAC_PORT_UC_FLOODING_DISABLE); + icssg_set_port_state(emac, ICSSG_EMAC_PORT_MC_FLOODING_DISABLE); if (promisc) { - emac_set_port_state(emac, ICSSG_EMAC_PORT_UC_FLOODING_ENABLE); - emac_set_port_state(emac, ICSSG_EMAC_PORT_MC_FLOODING_ENABLE); + icssg_set_port_state(emac, ICSSG_EMAC_PORT_UC_FLOODING_ENABLE); + icssg_set_port_state(emac, ICSSG_EMAC_PORT_MC_FLOODING_ENABLE); return; } if (allmulti) { - emac_set_port_state(emac, ICSSG_EMAC_PORT_MC_FLOODING_ENABLE); + icssg_set_port_state(emac, ICSSG_EMAC_PORT_MC_FLOODING_ENABLE); return; } - if (!netdev_mc_empty(ndev)) { - emac_set_port_state(emac, ICSSG_EMAC_PORT_MC_FLOODING_ENABLE); - return; + if (emac->prueth->is_hsr_offload_mode) { + __dev_mc_sync(ndev, icssg_prueth_hsr_add_mcast, + icssg_prueth_hsr_del_mcast); + if (rtnl_trylock()) { + vlan_for_each(emac->prueth->hsr_dev, + icssg_update_vlan_mcast, emac); + rtnl_unlock(); + } + } else { + __dev_mc_sync(ndev, icssg_prueth_add_mcast, + icssg_prueth_del_mcast); + if (rtnl_trylock()) { + vlan_for_each(ndev, icssg_update_vlan_mcast, emac); + rtnl_unlock(); + } } } @@ -1562,112 +962,64 @@ static void emac_ndo_set_rx_mode(struct net_device *ndev) queue_work(emac->cmd_wq, &emac->rx_mode_work); } -static int emac_set_ts_config(struct net_device *ndev, struct ifreq *ifr) +static netdev_features_t emac_ndo_fix_features(struct net_device *ndev, + netdev_features_t features) { - struct prueth_emac *emac = netdev_priv(ndev); - struct hwtstamp_config config; - - if (copy_from_user(&config, ifr->ifr_data, sizeof(config))) - return -EFAULT; - - switch (config.tx_type) { - case HWTSTAMP_TX_OFF: - emac->tx_ts_enabled = 0; - break; - case HWTSTAMP_TX_ON: - emac->tx_ts_enabled = 1; - break; - default: - return -ERANGE; - } - - switch (config.rx_filter) { - case HWTSTAMP_FILTER_NONE: - emac->rx_ts_enabled = 0; - break; - case HWTSTAMP_FILTER_ALL: - case HWTSTAMP_FILTER_SOME: - case HWTSTAMP_FILTER_PTP_V1_L4_EVENT: - case HWTSTAMP_FILTER_PTP_V1_L4_SYNC: - case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ: - case HWTSTAMP_FILTER_PTP_V2_L4_EVENT: - case HWTSTAMP_FILTER_PTP_V2_L4_SYNC: - case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ: - case HWTSTAMP_FILTER_PTP_V2_L2_EVENT: - case HWTSTAMP_FILTER_PTP_V2_L2_SYNC: - case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ: - case HWTSTAMP_FILTER_PTP_V2_EVENT: - case HWTSTAMP_FILTER_PTP_V2_SYNC: - case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ: - case HWTSTAMP_FILTER_NTP_ALL: - emac->rx_ts_enabled = 1; - config.rx_filter = HWTSTAMP_FILTER_ALL; - break; - default: - return -ERANGE; - } - - return copy_to_user(ifr->ifr_data, &config, sizeof(config)) ? - -EFAULT : 0; + /* hsr tag insertion offload and hsr dup offload are tightly coupled in + * firmware implementation. Both these features need to be enabled / + * disabled together. + */ + if (!(ndev->features & (NETIF_F_HW_HSR_DUP | NETIF_F_HW_HSR_TAG_INS))) + if ((features & NETIF_F_HW_HSR_DUP) || + (features & NETIF_F_HW_HSR_TAG_INS)) + features |= NETIF_F_HW_HSR_DUP | + NETIF_F_HW_HSR_TAG_INS; + + if ((ndev->features & NETIF_F_HW_HSR_DUP) || + (ndev->features & NETIF_F_HW_HSR_TAG_INS)) + if (!(features & NETIF_F_HW_HSR_DUP) || + !(features & NETIF_F_HW_HSR_TAG_INS)) + features &= ~(NETIF_F_HW_HSR_DUP | + NETIF_F_HW_HSR_TAG_INS); + + return features; } -static int emac_get_ts_config(struct net_device *ndev, struct ifreq *ifr) +static int emac_ndo_vlan_rx_add_vid(struct net_device *ndev, + __be16 proto, u16 vid) { struct prueth_emac *emac = netdev_priv(ndev); - struct hwtstamp_config config; + struct prueth *prueth = emac->prueth; + int port_mask = BIT(emac->port_id); + int untag_mask = 0; - config.flags = 0; - config.tx_type = emac->tx_ts_enabled ? HWTSTAMP_TX_ON : HWTSTAMP_TX_OFF; - config.rx_filter = emac->rx_ts_enabled ? HWTSTAMP_FILTER_ALL : HWTSTAMP_FILTER_NONE; + if (prueth->is_hsr_offload_mode) + port_mask |= BIT(PRUETH_PORT_HOST); - return copy_to_user(ifr->ifr_data, &config, sizeof(config)) ? - -EFAULT : 0; -} + __hw_addr_init(&emac->vlan_mcast_list[vid]); + netdev_dbg(emac->ndev, "VID add vid:%u port_mask:%X untag_mask %X\n", + vid, port_mask, untag_mask); -static int emac_ndo_ioctl(struct net_device *ndev, struct ifreq *ifr, int cmd) -{ - switch (cmd) { - case SIOCGHWTSTAMP: - return emac_get_ts_config(ndev, ifr); - case SIOCSHWTSTAMP: - return emac_set_ts_config(ndev, ifr); - default: - break; - } + icssg_vtbl_modify(emac, vid, port_mask, untag_mask, true); + icssg_set_pvid(emac->prueth, vid, emac->port_id); - return phy_do_ioctl(ndev, ifr, cmd); + return 0; } -static void emac_ndo_get_stats64(struct net_device *ndev, - struct rtnl_link_stats64 *stats) +static int emac_ndo_vlan_rx_del_vid(struct net_device *ndev, + __be16 proto, u16 vid) { struct prueth_emac *emac = netdev_priv(ndev); + struct prueth *prueth = emac->prueth; + int port_mask = BIT(emac->port_id); + int untag_mask = 0; - emac_update_hardware_stats(emac); - - stats->rx_packets = emac_get_stat_by_name(emac, "rx_packets"); - stats->rx_bytes = emac_get_stat_by_name(emac, "rx_bytes"); - stats->tx_packets = emac_get_stat_by_name(emac, "tx_packets"); - stats->tx_bytes = emac_get_stat_by_name(emac, "tx_bytes"); - stats->rx_crc_errors = emac_get_stat_by_name(emac, "rx_crc_errors"); - stats->rx_over_errors = emac_get_stat_by_name(emac, "rx_over_errors"); - stats->multicast = emac_get_stat_by_name(emac, "rx_multicast_frames"); - - stats->rx_errors = ndev->stats.rx_errors; - stats->rx_dropped = ndev->stats.rx_dropped; - stats->tx_errors = ndev->stats.tx_errors; - stats->tx_dropped = ndev->stats.tx_dropped; -} - -static int emac_ndo_get_phys_port_name(struct net_device *ndev, char *name, - size_t len) -{ - struct prueth_emac *emac = netdev_priv(ndev); - int ret; + if (prueth->is_hsr_offload_mode) + port_mask = BIT(PRUETH_PORT_HOST); - ret = snprintf(name, len, "p%d", emac->port_id); - if (ret >= len) - return -EINVAL; + netdev_dbg(emac->ndev, "VID del vid:%u port_mask:%X untag_mask %X\n", + vid, port_mask, untag_mask); + icssg_vtbl_modify(emac, vid, port_mask, untag_mask, false); return 0; } @@ -1675,52 +1027,19 @@ static int emac_ndo_get_phys_port_name(struct net_device *ndev, char *name, static const struct net_device_ops emac_netdev_ops = { .ndo_open = emac_ndo_open, .ndo_stop = emac_ndo_stop, - .ndo_start_xmit = emac_ndo_start_xmit, + .ndo_start_xmit = icssg_ndo_start_xmit, .ndo_set_mac_address = eth_mac_addr, .ndo_validate_addr = eth_validate_addr, - .ndo_tx_timeout = emac_ndo_tx_timeout, + .ndo_tx_timeout = icssg_ndo_tx_timeout, .ndo_set_rx_mode = emac_ndo_set_rx_mode, - .ndo_eth_ioctl = emac_ndo_ioctl, - .ndo_get_stats64 = emac_ndo_get_stats64, - .ndo_get_phys_port_name = emac_ndo_get_phys_port_name, + .ndo_eth_ioctl = icssg_ndo_ioctl, + .ndo_get_stats64 = icssg_ndo_get_stats64, + .ndo_get_phys_port_name = icssg_ndo_get_phys_port_name, + .ndo_fix_features = emac_ndo_fix_features, + .ndo_vlan_rx_add_vid = emac_ndo_vlan_rx_add_vid, + .ndo_vlan_rx_kill_vid = emac_ndo_vlan_rx_del_vid, }; -/* get emac_port corresponding to eth_node name */ -static int prueth_node_port(struct device_node *eth_node) -{ - u32 port_id; - int ret; - - ret = of_property_read_u32(eth_node, "reg", &port_id); - if (ret) - return ret; - - if (port_id == 0) - return PRUETH_PORT_MII0; - else if (port_id == 1) - return PRUETH_PORT_MII1; - else - return PRUETH_PORT_INVALID; -} - -/* get MAC instance corresponding to eth_node name */ -static int prueth_node_mac(struct device_node *eth_node) -{ - u32 port_id; - int ret; - - ret = of_property_read_u32(eth_node, "reg", &port_id); - if (ret) - return ret; - - if (port_id == 0) - return PRUETH_MAC0; - else if (port_id == 1) - return PRUETH_MAC1; - else - return PRUETH_MAC_INVALID; -} - static int prueth_netdev_init(struct prueth *prueth, struct device_node *eth_node) { @@ -1754,7 +1073,7 @@ static int prueth_netdev_init(struct prueth *prueth, } INIT_WORK(&emac->rx_mode_work, emac_ndo_set_rx_mode_work); - INIT_DELAYED_WORK(&emac->stats_work, emac_stats_work_handler); + INIT_DELAYED_WORK(&emac->stats_work, icssg_stats_work_handler); ret = pruss_request_mem_region(prueth->pruss, port == PRUETH_PORT_MII0 ? @@ -1840,14 +1159,19 @@ static int prueth_netdev_init(struct prueth *prueth, } ether_addr_copy(emac->mac_addr, ndev->dev_addr); + ndev->dev.of_node = eth_node; ndev->min_mtu = PRUETH_MIN_PKT_SIZE; ndev->max_mtu = PRUETH_MAX_MTU; ndev->netdev_ops = &emac_netdev_ops; ndev->ethtool_ops = &icssg_ethtool_ops; ndev->hw_features = NETIF_F_SG; - ndev->features = ndev->hw_features; + ndev->features = ndev->hw_features | NETIF_F_HW_VLAN_CTAG_FILTER; + ndev->hw_features |= NETIF_PRUETH_HSR_OFFLOAD_FEATURES; - netif_napi_add(ndev, &emac->napi_rx, emac_napi_rx_poll); + netif_napi_add(ndev, &emac->napi_rx, icssg_napi_rx_poll); + hrtimer_init(&emac->rx_hrtimer, CLOCK_MONOTONIC, + HRTIMER_MODE_REL_PINNED); + emac->rx_hrtimer.function = &emac_rx_timer_callback; prueth->emac[mac] = emac; return 0; @@ -1864,88 +1188,321 @@ free_ndev: return ret; } -static void prueth_netdev_exit(struct prueth *prueth, - struct device_node *eth_node) +bool prueth_dev_check(const struct net_device *ndev) +{ + if (ndev->netdev_ops == &emac_netdev_ops && netif_running(ndev)) { + struct prueth_emac *emac = netdev_priv(ndev); + + return emac->prueth->is_switch_mode; + } + + return false; +} + +static void prueth_offload_fwd_mark_update(struct prueth *prueth) +{ + int set_val = 0; + int i; + + if (prueth->br_members == (BIT(PRUETH_PORT_MII0) | BIT(PRUETH_PORT_MII1))) + set_val = 1; + + dev_dbg(prueth->dev, "set offload_fwd_mark %d\n", set_val); + + for (i = PRUETH_MAC0; i < PRUETH_NUM_MACS; i++) { + struct prueth_emac *emac = prueth->emac[i]; + + if (!emac || !emac->ndev) + continue; + + emac->offload_fwd_mark = set_val; + } +} + +static int prueth_emac_restart(struct prueth *prueth) +{ + struct prueth_emac *emac0 = prueth->emac[PRUETH_MAC0]; + struct prueth_emac *emac1 = prueth->emac[PRUETH_MAC1]; + int ret; + + /* Detach the net_device for both PRUeth ports*/ + if (netif_running(emac0->ndev)) + netif_device_detach(emac0->ndev); + if (netif_running(emac1->ndev)) + netif_device_detach(emac1->ndev); + + /* Disable both PRUeth ports */ + ret = icssg_set_port_state(emac0, ICSSG_EMAC_PORT_DISABLE); + ret |= icssg_set_port_state(emac1, ICSSG_EMAC_PORT_DISABLE); + if (ret) + return ret; + + /* Stop both pru cores for both PRUeth ports*/ + ret = prueth_emac_common_stop(prueth); + if (ret) { + dev_err(prueth->dev, "Failed to stop the firmwares"); + return ret; + } + + /* Start both pru cores for both PRUeth ports */ + ret = prueth_emac_common_start(prueth); + if (ret) { + dev_err(prueth->dev, "Failed to start the firmwares"); + return ret; + } + + /* Enable forwarding for both PRUeth ports */ + ret = icssg_set_port_state(emac0, ICSSG_EMAC_PORT_FORWARD); + ret |= icssg_set_port_state(emac1, ICSSG_EMAC_PORT_FORWARD); + + /* Attache net_device for both PRUeth ports */ + netif_device_attach(emac0->ndev); + netif_device_attach(emac1->ndev); + + return ret; +} + +static void icssg_change_mode(struct prueth *prueth) { struct prueth_emac *emac; - enum prueth_mac mac; + int mac, ret; - mac = prueth_node_mac(eth_node); - if (mac == PRUETH_MAC_INVALID) + ret = prueth_emac_restart(prueth); + if (ret) { + dev_err(prueth->dev, "Failed to restart the firmwares, aborting the process"); return; + } - emac = prueth->emac[mac]; - if (!emac) - return; + for (mac = PRUETH_MAC0; mac < PRUETH_NUM_MACS; mac++) { + emac = prueth->emac[mac]; + if (prueth->is_hsr_offload_mode) { + if (emac->ndev->features & NETIF_F_HW_HSR_TAG_RM) + icssg_set_port_state(emac, ICSSG_EMAC_HSR_RX_OFFLOAD_ENABLE); + else + icssg_set_port_state(emac, ICSSG_EMAC_HSR_RX_OFFLOAD_DISABLE); + } - if (of_phy_is_fixed_link(emac->phy_node)) - of_phy_deregister_fixed_link(emac->phy_node); + if (netif_running(emac->ndev)) { + icssg_fdb_add_del(emac, eth_stp_addr, prueth->default_vlan, + ICSSG_FDB_ENTRY_P0_MEMBERSHIP | + ICSSG_FDB_ENTRY_P1_MEMBERSHIP | + ICSSG_FDB_ENTRY_P2_MEMBERSHIP | + ICSSG_FDB_ENTRY_BLOCK, + true); + icssg_vtbl_modify(emac, emac->port_vlan | DEFAULT_VID, + BIT(emac->port_id) | DEFAULT_PORT_MASK, + BIT(emac->port_id) | DEFAULT_UNTAG_MASK, + true); + if (prueth->is_hsr_offload_mode) + icssg_vtbl_modify(emac, DEFAULT_VID, + DEFAULT_PORT_MASK, + DEFAULT_UNTAG_MASK, true); + icssg_set_pvid(prueth, emac->port_vlan, emac->port_id); + if (prueth->is_switch_mode) + icssg_set_port_state(emac, ICSSG_EMAC_PORT_VLAN_AWARE_ENABLE); + } + } +} - netif_napi_del(&emac->napi_rx); +static int prueth_netdevice_port_link(struct net_device *ndev, + struct net_device *br_ndev, + struct netlink_ext_ack *extack) +{ + struct prueth_emac *emac = netdev_priv(ndev); + struct prueth *prueth = emac->prueth; + int err; - pruss_release_mem_region(prueth->pruss, &emac->dram); - destroy_workqueue(emac->cmd_wq); - free_netdev(emac->ndev); - prueth->emac[mac] = NULL; + if (!prueth->br_members) { + prueth->hw_bridge_dev = br_ndev; + } else { + /* This is adding the port to a second bridge, this is + * unsupported + */ + if (prueth->hw_bridge_dev != br_ndev) + return -EOPNOTSUPP; + } + + err = switchdev_bridge_port_offload(br_ndev, ndev, emac, + &prueth->prueth_switchdev_nb, + &prueth->prueth_switchdev_bl_nb, + false, extack); + if (err) + return err; + + prueth->br_members |= BIT(emac->port_id); + + if (!prueth->is_switch_mode) { + if (prueth->br_members & BIT(PRUETH_PORT_MII0) && + prueth->br_members & BIT(PRUETH_PORT_MII1)) { + prueth->is_switch_mode = true; + prueth->default_vlan = PRUETH_DFLT_VLAN_SW; + emac->port_vlan = prueth->default_vlan; + icssg_change_mode(prueth); + } + } + + prueth_offload_fwd_mark_update(prueth); + + return NOTIFY_DONE; } -static int prueth_get_cores(struct prueth *prueth, int slice) +static void prueth_netdevice_port_unlink(struct net_device *ndev) { - struct device *dev = prueth->dev; - enum pruss_pru_id pruss_id; - struct device_node *np; - int idx = -1, ret; + struct prueth_emac *emac = netdev_priv(ndev); + struct prueth *prueth = emac->prueth; + int ret; - np = dev->of_node; + prueth->br_members &= ~BIT(emac->port_id); - switch (slice) { - case ICSS_SLICE0: - idx = 0; - break; - case ICSS_SLICE1: - idx = 3; - break; - default: - return -EINVAL; + if (prueth->is_switch_mode) { + prueth->is_switch_mode = false; + emac->port_vlan = 0; + ret = prueth_emac_restart(prueth); + if (ret) { + dev_err(prueth->dev, "Failed to restart the firmwares, aborting the process"); + return; + } } - prueth->pru[slice] = pru_rproc_get(np, idx, &pruss_id); - if (IS_ERR(prueth->pru[slice])) { - ret = PTR_ERR(prueth->pru[slice]); - prueth->pru[slice] = NULL; - return dev_err_probe(dev, ret, "unable to get PRU%d\n", slice); + prueth_offload_fwd_mark_update(prueth); + + if (!prueth->br_members) + prueth->hw_bridge_dev = NULL; +} + +static int prueth_hsr_port_link(struct net_device *ndev) +{ + struct prueth_emac *emac = netdev_priv(ndev); + struct prueth *prueth = emac->prueth; + struct prueth_emac *emac0; + struct prueth_emac *emac1; + + emac0 = prueth->emac[PRUETH_MAC0]; + emac1 = prueth->emac[PRUETH_MAC1]; + + if (prueth->is_switch_mode) + return -EOPNOTSUPP; + + prueth->hsr_members |= BIT(emac->port_id); + if (!prueth->is_hsr_offload_mode) { + if (prueth->hsr_members & BIT(PRUETH_PORT_MII0) && + prueth->hsr_members & BIT(PRUETH_PORT_MII1)) { + if (!(emac0->ndev->features & + NETIF_PRUETH_HSR_OFFLOAD_FEATURES) && + !(emac1->ndev->features & + NETIF_PRUETH_HSR_OFFLOAD_FEATURES)) + return -EOPNOTSUPP; + prueth->is_hsr_offload_mode = true; + prueth->default_vlan = PRUETH_DFLT_VLAN_HSR; + emac0->port_vlan = prueth->default_vlan; + emac1->port_vlan = prueth->default_vlan; + icssg_change_mode(prueth); + netdev_dbg(ndev, "Enabling HSR offload mode\n"); + } } - prueth->pru_id[slice] = pruss_id; - idx++; - prueth->rtu[slice] = pru_rproc_get(np, idx, NULL); - if (IS_ERR(prueth->rtu[slice])) { - ret = PTR_ERR(prueth->rtu[slice]); - prueth->rtu[slice] = NULL; - return dev_err_probe(dev, ret, "unable to get RTU%d\n", slice); + return 0; +} + +static void prueth_hsr_port_unlink(struct net_device *ndev) +{ + struct prueth_emac *emac = netdev_priv(ndev); + struct prueth *prueth = emac->prueth; + struct prueth_emac *emac0; + struct prueth_emac *emac1; + int ret; + + emac0 = prueth->emac[PRUETH_MAC0]; + emac1 = prueth->emac[PRUETH_MAC1]; + + prueth->hsr_members &= ~BIT(emac->port_id); + if (prueth->is_hsr_offload_mode) { + prueth->is_hsr_offload_mode = false; + emac0->port_vlan = 0; + emac1->port_vlan = 0; + prueth->hsr_dev = NULL; + ret = prueth_emac_restart(prueth); + if (ret) { + dev_err(prueth->dev, "Failed to restart the firmwares, aborting the process"); + return; + } + netdev_dbg(ndev, "Disabling HSR Offload mode\n"); } +} - idx++; - prueth->txpru[slice] = pru_rproc_get(np, idx, NULL); - if (IS_ERR(prueth->txpru[slice])) { - ret = PTR_ERR(prueth->txpru[slice]); - prueth->txpru[slice] = NULL; - return dev_err_probe(dev, ret, "unable to get TX_PRU%d\n", slice); +/* netdev notifier */ +static int prueth_netdevice_event(struct notifier_block *unused, + unsigned long event, void *ptr) +{ + struct netlink_ext_ack *extack = netdev_notifier_info_to_extack(ptr); + struct net_device *ndev = netdev_notifier_info_to_dev(ptr); + struct netdev_notifier_changeupper_info *info; + struct prueth_emac *emac = netdev_priv(ndev); + struct prueth *prueth = emac->prueth; + int ret = NOTIFY_DONE; + + if (ndev->netdev_ops != &emac_netdev_ops) + return NOTIFY_DONE; + + switch (event) { + case NETDEV_CHANGEUPPER: + info = ptr; + + if ((ndev->features & NETIF_PRUETH_HSR_OFFLOAD_FEATURES) && + is_hsr_master(info->upper_dev)) { + if (info->linking) { + if (!prueth->hsr_dev) { + prueth->hsr_dev = info->upper_dev; + icssg_class_set_host_mac_addr(prueth->miig_rt, + prueth->hsr_dev->dev_addr); + } else { + if (prueth->hsr_dev != info->upper_dev) { + netdev_dbg(ndev, "Both interfaces must be linked to same upper device\n"); + return -EOPNOTSUPP; + } + } + prueth_hsr_port_link(ndev); + } else { + prueth_hsr_port_unlink(ndev); + } + } + + if (netif_is_bridge_master(info->upper_dev)) { + if (info->linking) + ret = prueth_netdevice_port_link(ndev, info->upper_dev, extack); + else + prueth_netdevice_port_unlink(ndev); + } + break; + default: + return NOTIFY_DONE; } - return 0; + return notifier_from_errno(ret); } -static void prueth_put_cores(struct prueth *prueth, int slice) +static int prueth_register_notifiers(struct prueth *prueth) { - if (prueth->txpru[slice]) - pru_rproc_put(prueth->txpru[slice]); + int ret = 0; + + prueth->prueth_netdevice_nb.notifier_call = &prueth_netdevice_event; + ret = register_netdevice_notifier(&prueth->prueth_netdevice_nb); + if (ret) { + dev_err(prueth->dev, "can't register netdevice notifier\n"); + return ret; + } - if (prueth->rtu[slice]) - pru_rproc_put(prueth->rtu[slice]); + ret = prueth_switchdev_register_notifiers(prueth); + if (ret) + unregister_netdevice_notifier(&prueth->prueth_netdevice_nb); - if (prueth->pru[slice]) - pru_rproc_put(prueth->pru[slice]); + return ret; +} + +static void prueth_unregister_notifiers(struct prueth *prueth) +{ + prueth_switchdev_unregister_notifiers(prueth); + unregister_netdevice_notifier(&prueth->prueth_netdevice_nb); } static int prueth_probe(struct platform_device *pdev) @@ -2037,14 +1594,17 @@ static int prueth_probe(struct platform_device *pdev) return -ENODEV; } - if (eth0_node) { - ret = prueth_get_cores(prueth, ICSS_SLICE0); - if (ret) - goto put_cores; + prueth->pa_stats = syscon_regmap_lookup_by_phandle(np, "ti,pa-stats"); + if (IS_ERR(prueth->pa_stats)) { + dev_err(dev, "couldn't get ti,pa-stats syscon regmap\n"); + prueth->pa_stats = NULL; } - if (eth1_node) { - ret = prueth_get_cores(prueth, ICSS_SLICE1); + if (eth0_node || eth1_node) { + ret = prueth_get_cores(prueth, ICSS_SLICE0, false); + if (ret) + goto put_cores; + ret = prueth_get_cores(prueth, ICSS_SLICE1, false); if (ret) goto put_cores; } @@ -2075,6 +1635,9 @@ static int prueth_probe(struct platform_device *pdev) } msmc_ram_size = MSMC_RAM_SIZE; + prueth->is_switchmode_supported = prueth->pdata.switch_mode; + if (prueth->is_switchmode_supported) + msmc_ram_size = MSMC_RAM_SIZE_SWITCH_MODE; /* NOTE: FW bug needs buffer base to be 64KB aligned */ prueth->msmcram.va = @@ -2115,6 +1678,8 @@ static int prueth_probe(struct platform_device *pdev) icss_iep_init_fw(prueth->iep1); } + spin_lock_init(&prueth->vtbl_lock); + spin_lock_init(&prueth->stats_lock); /* setup netdev interfaces */ if (eth0_node) { ret = prueth_netdev_init(prueth, eth0_node); @@ -2124,8 +1689,8 @@ static int prueth_probe(struct platform_device *pdev) goto exit_iep; } - if (of_find_property(eth0_node, "ti,half-duplex-capable", NULL)) - prueth->emac[PRUETH_MAC0]->half_duplex = 1; + prueth->emac[PRUETH_MAC0]->half_duplex = + of_property_read_bool(eth0_node, "ti,half-duplex-capable"); prueth->emac[PRUETH_MAC0]->iep = prueth->iep0; } @@ -2138,8 +1703,8 @@ static int prueth_probe(struct platform_device *pdev) goto netdev_exit; } - if (of_find_property(eth1_node, "ti,half-duplex-capable", NULL)) - prueth->emac[PRUETH_MAC1]->half_duplex = 1; + prueth->emac[PRUETH_MAC1]->half_duplex = + of_property_read_bool(eth1_node, "ti,half-duplex-capable"); prueth->emac[PRUETH_MAC1]->iep = prueth->iep0; } @@ -2154,7 +1719,12 @@ static int prueth_probe(struct platform_device *pdev) prueth->registered_netdevs[PRUETH_MAC0] = prueth->emac[PRUETH_MAC0]->ndev; - emac_phy_connect(prueth->emac[PRUETH_MAC0]); + ret = emac_phy_connect(prueth->emac[PRUETH_MAC0]); + if (ret) { + dev_err(dev, + "can't connect to MII0 PHY, error -%d", ret); + goto netdev_unregister; + } phy_attached_info(prueth->emac[PRUETH_MAC0]->ndev->phydev); } @@ -2166,10 +1736,23 @@ static int prueth_probe(struct platform_device *pdev) } prueth->registered_netdevs[PRUETH_MAC1] = prueth->emac[PRUETH_MAC1]->ndev; - emac_phy_connect(prueth->emac[PRUETH_MAC1]); + ret = emac_phy_connect(prueth->emac[PRUETH_MAC1]); + if (ret) { + dev_err(dev, + "can't connect to MII1 PHY, error %d", ret); + goto netdev_unregister; + } phy_attached_info(prueth->emac[PRUETH_MAC1]->ndev->phydev); } + if (prueth->is_switchmode_supported) { + ret = prueth_register_notifiers(prueth); + if (ret) + goto netdev_unregister; + + sprintf(prueth->switch_id, "%s", dev_name(dev)); + } + dev_info(dev, "TI PRU ethernet driver initialized: %s EMAC mode\n", (!eth0_node || !eth1_node) ? "single" : "dual"); @@ -2220,14 +1803,12 @@ put_pruss: pruss_put(prueth->pruss); put_cores: - if (eth1_node) { - prueth_put_cores(prueth, ICSS_SLICE1); - of_node_put(eth1_node); - } - - if (eth0_node) { + if (eth0_node || eth1_node) { prueth_put_cores(prueth, ICSS_SLICE0); of_node_put(eth0_node); + + prueth_put_cores(prueth, ICSS_SLICE1); + of_node_put(eth1_node); } return ret; @@ -2239,6 +1820,8 @@ static void prueth_remove(struct platform_device *pdev) struct device_node *eth_node; int i; + prueth_unregister_notifiers(prueth); + for (i = 0; i < PRUETH_NUM_MACS; i++) { if (!prueth->registered_netdevs[i]) continue; @@ -2277,69 +1860,16 @@ static void prueth_remove(struct platform_device *pdev) prueth_put_cores(prueth, ICSS_SLICE0); } -#ifdef CONFIG_PM_SLEEP -static int prueth_suspend(struct device *dev) -{ - struct prueth *prueth = dev_get_drvdata(dev); - struct net_device *ndev; - int i, ret; - - for (i = 0; i < PRUETH_NUM_MACS; i++) { - ndev = prueth->registered_netdevs[i]; - - if (!ndev) - continue; - - if (netif_running(ndev)) { - netif_device_detach(ndev); - ret = emac_ndo_stop(ndev); - if (ret < 0) { - netdev_err(ndev, "failed to stop: %d", ret); - return ret; - } - } - } - - return 0; -} - -static int prueth_resume(struct device *dev) -{ - struct prueth *prueth = dev_get_drvdata(dev); - struct net_device *ndev; - int i, ret; - - for (i = 0; i < PRUETH_NUM_MACS; i++) { - ndev = prueth->registered_netdevs[i]; - - if (!ndev) - continue; - - if (netif_running(ndev)) { - ret = emac_ndo_open(ndev); - if (ret < 0) { - netdev_err(ndev, "failed to start: %d", ret); - return ret; - } - netif_device_attach(ndev); - } - } - - return 0; -} -#endif /* CONFIG_PM_SLEEP */ - -static const struct dev_pm_ops prueth_dev_pm_ops = { - SET_SYSTEM_SLEEP_PM_OPS(prueth_suspend, prueth_resume) -}; - static const struct prueth_pdata am654_icssg_pdata = { .fdqring_mode = K3_RINGACC_RING_MODE_MESSAGE, .quirk_10m_link_issue = 1, + .switch_mode = 1, }; static const struct prueth_pdata am64x_icssg_pdata = { .fdqring_mode = K3_RINGACC_RING_MODE_RING, + .quirk_10m_link_issue = 1, + .switch_mode = 1, }; static const struct of_device_id prueth_dt_match[] = { @@ -2351,7 +1881,7 @@ MODULE_DEVICE_TABLE(of, prueth_dt_match); static struct platform_driver prueth_driver = { .probe = prueth_probe, - .remove_new = prueth_remove, + .remove = prueth_remove, .driver = { .name = "icssg-prueth", .of_match_table = prueth_dt_match, |