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path: root/drivers/net/ethernet/ti/am65-cpsw-nuss.c
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Diffstat (limited to 'drivers/net/ethernet/ti/am65-cpsw-nuss.c')
-rw-r--r--drivers/net/ethernet/ti/am65-cpsw-nuss.c722
1 files changed, 605 insertions, 117 deletions
diff --git a/drivers/net/ethernet/ti/am65-cpsw-nuss.c b/drivers/net/ethernet/ti/am65-cpsw-nuss.c
index 2939a21ca74f3c..4e50b379288859 100644
--- a/drivers/net/ethernet/ti/am65-cpsw-nuss.c
+++ b/drivers/net/ethernet/ti/am65-cpsw-nuss.c
@@ -5,6 +5,7 @@
*
*/
+#include <linux/bpf_trace.h>
#include <linux/clk.h>
#include <linux/etherdevice.h>
#include <linux/if_vlan.h>
@@ -30,6 +31,7 @@
#include <linux/sys_soc.h>
#include <linux/dma/ti-cppi5.h>
#include <linux/dma/k3-udma-glue.h>
+#include <net/page_pool/helpers.h>
#include <net/switchdev.h>
#include "cpsw_ale.h"
@@ -101,6 +103,12 @@
#define AM65_CPSW_PN_TS_CTL_TX_HOST_TS_EN BIT(11)
#define AM65_CPSW_PN_TS_CTL_MSG_TYPE_EN_SHIFT 16
+#define AM65_CPSW_PN_TS_CTL_RX_ANX_F_EN BIT(0)
+#define AM65_CPSW_PN_TS_CTL_RX_VLAN_LT1_EN BIT(1)
+#define AM65_CPSW_PN_TS_CTL_RX_VLAN_LT2_EN BIT(2)
+#define AM65_CPSW_PN_TS_CTL_RX_ANX_D_EN BIT(3)
+#define AM65_CPSW_PN_TS_CTL_RX_ANX_E_EN BIT(9)
+
/* AM65_CPSW_PORTN_REG_TS_SEQ_LTYPE_REG register fields */
#define AM65_CPSW_PN_TS_SEQ_ID_OFFSET_SHIFT 16
@@ -124,6 +132,11 @@
AM65_CPSW_PN_TS_CTL_TX_ANX_E_EN | \
AM65_CPSW_PN_TS_CTL_TX_ANX_F_EN)
+#define AM65_CPSW_TS_RX_ANX_ALL_EN \
+ (AM65_CPSW_PN_TS_CTL_RX_ANX_D_EN | \
+ AM65_CPSW_PN_TS_CTL_RX_ANX_E_EN | \
+ AM65_CPSW_PN_TS_CTL_RX_ANX_F_EN)
+
#define AM65_CPSW_ALE_AGEOUT_DEFAULT 30
/* Number of TX/RX descriptors */
#define AM65_CPSW_MAX_TX_DESC 500
@@ -138,6 +151,18 @@
#define AM65_CPSW_DEFAULT_TX_CHNS 8
+/* CPPI streaming packet interface */
+#define AM65_CPSW_CPPI_TX_FLOW_ID 0x3FFF
+#define AM65_CPSW_CPPI_TX_PKT_TYPE 0x7
+
+/* XDP */
+#define AM65_CPSW_XDP_CONSUMED 2
+#define AM65_CPSW_XDP_REDIRECT 1
+#define AM65_CPSW_XDP_PASS 0
+
+/* Include headroom compatible with both skb and xdpf */
+#define AM65_CPSW_HEADROOM (max(NET_SKB_PAD, XDP_PACKET_HEADROOM) + NET_IP_ALIGN)
+
static void am65_cpsw_port_set_sl_mac(struct am65_cpsw_port *slave,
const u8 *dev_addr)
{
@@ -305,12 +330,11 @@ static void am65_cpsw_nuss_ndo_host_tx_timeout(struct net_device *ndev,
}
static int am65_cpsw_nuss_rx_push(struct am65_cpsw_common *common,
- struct sk_buff *skb)
+ struct page *page)
{
struct am65_cpsw_rx_chn *rx_chn = &common->rx_chns;
struct cppi5_host_desc_t *desc_rx;
struct device *dev = common->dev;
- u32 pkt_len = skb_tailroom(skb);
dma_addr_t desc_dma;
dma_addr_t buf_dma;
void *swdata;
@@ -322,20 +346,22 @@ static int am65_cpsw_nuss_rx_push(struct am65_cpsw_common *common,
}
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);
+ buf_dma = dma_map_single(rx_chn->dma_dev,
+ page_address(page) + AM65_CPSW_HEADROOM,
+ AM65_CPSW_MAX_PACKET_SIZE, 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);
- dev_err(dev, "Failed to map rx skb buffer\n");
+ dev_err(dev, "Failed to map rx buffer\n");
return -EINVAL;
}
cppi5_hdesc_init(desc_rx, CPPI5_INFO0_HDESC_EPIB_PRESENT,
AM65_CPSW_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));
+ cppi5_hdesc_attach_buf(desc_rx, buf_dma, AM65_CPSW_MAX_PACKET_SIZE,
+ buf_dma, AM65_CPSW_MAX_PACKET_SIZE);
swdata = cppi5_hdesc_get_swdata(desc_rx);
- *((void **)swdata) = skb;
+ *((void **)swdata) = page_address(page);
return k3_udma_glue_push_rx_chn(rx_chn->rx_chn, 0, desc_rx, desc_dma);
}
@@ -369,25 +395,137 @@ static void am65_cpsw_init_host_port_emac(struct am65_cpsw_common *common);
static void am65_cpsw_init_port_switch_ale(struct am65_cpsw_port *port);
static void am65_cpsw_init_port_emac_ale(struct am65_cpsw_port *port);
+static void am65_cpsw_destroy_xdp_rxqs(struct am65_cpsw_common *common)
+{
+ struct am65_cpsw_rx_chn *rx_chn = &common->rx_chns;
+ struct xdp_rxq_info *rxq;
+ int i;
+
+ for (i = 0; i < common->port_num; i++) {
+ if (!common->ports[i].ndev)
+ continue;
+
+ rxq = &common->ports[i].xdp_rxq;
+
+ if (xdp_rxq_info_is_reg(rxq))
+ xdp_rxq_info_unreg(rxq);
+ }
+
+ if (rx_chn->page_pool) {
+ page_pool_destroy(rx_chn->page_pool);
+ rx_chn->page_pool = NULL;
+ }
+}
+
+static int am65_cpsw_create_xdp_rxqs(struct am65_cpsw_common *common)
+{
+ struct am65_cpsw_rx_chn *rx_chn = &common->rx_chns;
+ struct page_pool_params pp_params = {
+ .flags = PP_FLAG_DMA_MAP,
+ .order = 0,
+ .pool_size = AM65_CPSW_MAX_RX_DESC,
+ .nid = dev_to_node(common->dev),
+ .dev = common->dev,
+ .dma_dir = DMA_BIDIRECTIONAL,
+ .napi = &common->napi_rx,
+ };
+ struct xdp_rxq_info *rxq;
+ struct page_pool *pool;
+ int i, ret;
+
+ pool = page_pool_create(&pp_params);
+ if (IS_ERR(pool))
+ return PTR_ERR(pool);
+
+ rx_chn->page_pool = pool;
+
+ for (i = 0; i < common->port_num; i++) {
+ if (!common->ports[i].ndev)
+ continue;
+
+ rxq = &common->ports[i].xdp_rxq;
+
+ ret = xdp_rxq_info_reg(rxq, common->ports[i].ndev, i, 0);
+ if (ret)
+ goto err;
+
+ ret = xdp_rxq_info_reg_mem_model(rxq, MEM_TYPE_PAGE_POOL, pool);
+ if (ret)
+ goto err;
+ }
+
+ return 0;
+
+err:
+ am65_cpsw_destroy_xdp_rxqs(common);
+ return ret;
+}
+
+static int am65_cpsw_nuss_desc_idx(struct k3_cppi_desc_pool *desc_pool,
+ void *desc,
+ unsigned char dsize_log2)
+{
+ void *pool_addr = k3_cppi_desc_pool_cpuaddr(desc_pool);
+
+ return (desc - pool_addr) >> dsize_log2;
+}
+
+static void am65_cpsw_nuss_set_buf_type(struct am65_cpsw_tx_chn *tx_chn,
+ struct cppi5_host_desc_t *desc,
+ enum am65_cpsw_tx_buf_type buf_type)
+{
+ int desc_idx;
+
+ desc_idx = am65_cpsw_nuss_desc_idx(tx_chn->desc_pool, desc,
+ tx_chn->dsize_log2);
+ k3_cppi_desc_pool_desc_info_set(tx_chn->desc_pool, desc_idx,
+ (void *)buf_type);
+}
+
+static enum am65_cpsw_tx_buf_type am65_cpsw_nuss_buf_type(struct am65_cpsw_tx_chn *tx_chn,
+ dma_addr_t desc_dma)
+{
+ struct cppi5_host_desc_t *desc_tx;
+ int desc_idx;
+
+ desc_tx = k3_cppi_desc_pool_dma2virt(tx_chn->desc_pool, desc_dma);
+ desc_idx = am65_cpsw_nuss_desc_idx(tx_chn->desc_pool, desc_tx,
+ tx_chn->dsize_log2);
+
+ return (enum am65_cpsw_tx_buf_type)k3_cppi_desc_pool_desc_info(tx_chn->desc_pool,
+ desc_idx);
+}
+
+static inline void am65_cpsw_put_page(struct am65_cpsw_rx_chn *rx_chn,
+ struct page *page,
+ bool allow_direct,
+ int desc_idx)
+{
+ page_pool_put_full_page(rx_chn->page_pool, page, allow_direct);
+ rx_chn->pages[desc_idx] = NULL;
+}
+
static void am65_cpsw_nuss_rx_cleanup(void *data, dma_addr_t desc_dma)
{
struct am65_cpsw_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 *page_addr;
void **swdata;
+ int desc_idx;
desc_rx = k3_cppi_desc_pool_dma2virt(rx_chn->desc_pool, desc_dma);
swdata = cppi5_hdesc_get_swdata(desc_rx);
- skb = *swdata;
+ page_addr = *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);
+ desc_idx = am65_cpsw_nuss_desc_idx(rx_chn->desc_pool, desc_rx,
+ rx_chn->dsize_log2);
+ am65_cpsw_put_page(rx_chn, virt_to_page(page_addr), false, desc_idx);
}
static void am65_cpsw_nuss_xmit_free(struct am65_cpsw_tx_chn *tx_chn,
@@ -440,12 +578,32 @@ static void am65_cpsw_nuss_tx_cleanup(void *data, dma_addr_t desc_dma)
dev_kfree_skb_any(skb);
}
+static struct sk_buff *am65_cpsw_build_skb(void *page_addr,
+ struct net_device *ndev,
+ unsigned int len)
+{
+ struct sk_buff *skb;
+
+ len += AM65_CPSW_HEADROOM;
+
+ skb = build_skb(page_addr, len);
+ if (unlikely(!skb))
+ return NULL;
+
+ skb_reserve(skb, AM65_CPSW_HEADROOM);
+ skb->dev = ndev;
+
+ return skb;
+}
+
static int am65_cpsw_nuss_common_open(struct am65_cpsw_common *common)
{
struct am65_cpsw_host *host_p = am65_common_get_host(common);
+ struct am65_cpsw_rx_chn *rx_chn = &common->rx_chns;
+ struct am65_cpsw_tx_chn *tx_chn = common->tx_chns;
int port_idx, i, ret, tx;
- struct sk_buff *skb;
u32 val, port_mask;
+ struct page *page;
if (common->usage_count)
return 0;
@@ -505,25 +663,29 @@ static int am65_cpsw_nuss_common_open(struct am65_cpsw_common *common)
am65_cpsw_qos_tx_p0_rate_init(common);
- for (i = 0; i < common->rx_chns.descs_num; i++) {
- skb = __netdev_alloc_skb_ip_align(NULL,
- AM65_CPSW_MAX_PACKET_SIZE,
- GFP_KERNEL);
- if (!skb) {
+ ret = am65_cpsw_create_xdp_rxqs(common);
+ if (ret) {
+ dev_err(common->dev, "Failed to create XDP rx queues\n");
+ return ret;
+ }
+
+ for (i = 0; i < rx_chn->descs_num; i++) {
+ page = page_pool_dev_alloc_pages(rx_chn->page_pool);
+ if (!page) {
ret = -ENOMEM;
- dev_err(common->dev, "cannot allocate skb\n");
if (i)
goto fail_rx;
return ret;
}
+ rx_chn->pages[i] = page;
- ret = am65_cpsw_nuss_rx_push(common, skb);
+ ret = am65_cpsw_nuss_rx_push(common, page);
if (ret < 0) {
dev_err(common->dev,
- "cannot submit skb to channel rx, error %d\n",
+ "cannot submit page to channel rx: %d\n",
ret);
- kfree_skb(skb);
+ am65_cpsw_put_page(rx_chn, page, false, i);
if (i)
goto fail_rx;
@@ -531,27 +693,27 @@ static int am65_cpsw_nuss_common_open(struct am65_cpsw_common *common)
}
}
- ret = k3_udma_glue_enable_rx_chn(common->rx_chns.rx_chn);
+ ret = k3_udma_glue_enable_rx_chn(rx_chn->rx_chn);
if (ret) {
dev_err(common->dev, "couldn't enable rx chn: %d\n", ret);
goto fail_rx;
}
for (tx = 0; tx < common->tx_ch_num; tx++) {
- ret = k3_udma_glue_enable_tx_chn(common->tx_chns[tx].tx_chn);
+ ret = k3_udma_glue_enable_tx_chn(tx_chn[tx].tx_chn);
if (ret) {
dev_err(common->dev, "couldn't enable tx chn %d: %d\n",
tx, ret);
tx--;
goto fail_tx;
}
- napi_enable(&common->tx_chns[tx].napi_tx);
+ napi_enable(&tx_chn[tx].napi_tx);
}
napi_enable(&common->napi_rx);
if (common->rx_irq_disabled) {
common->rx_irq_disabled = false;
- enable_irq(common->rx_chns.irq);
+ enable_irq(rx_chn->irq);
}
dev_dbg(common->dev, "cpsw_nuss started\n");
@@ -559,22 +721,23 @@ static int am65_cpsw_nuss_common_open(struct am65_cpsw_common *common)
fail_tx:
while (tx >= 0) {
- napi_disable(&common->tx_chns[tx].napi_tx);
- k3_udma_glue_disable_tx_chn(common->tx_chns[tx].tx_chn);
+ napi_disable(&tx_chn[tx].napi_tx);
+ k3_udma_glue_disable_tx_chn(tx_chn[tx].tx_chn);
tx--;
}
- k3_udma_glue_disable_rx_chn(common->rx_chns.rx_chn);
+ k3_udma_glue_disable_rx_chn(rx_chn->rx_chn);
fail_rx:
- k3_udma_glue_reset_rx_chn(common->rx_chns.rx_chn, 0,
- &common->rx_chns,
+ k3_udma_glue_reset_rx_chn(rx_chn->rx_chn, 0, rx_chn,
am65_cpsw_nuss_rx_cleanup, 0);
return ret;
}
static int am65_cpsw_nuss_common_stop(struct am65_cpsw_common *common)
{
+ struct am65_cpsw_rx_chn *rx_chn = &common->rx_chns;
+ struct am65_cpsw_tx_chn *tx_chn = common->tx_chns;
int i;
if (common->usage_count != 1)
@@ -590,26 +753,25 @@ static int am65_cpsw_nuss_common_stop(struct am65_cpsw_common *common)
reinit_completion(&common->tdown_complete);
for (i = 0; i < common->tx_ch_num; i++)
- k3_udma_glue_tdown_tx_chn(common->tx_chns[i].tx_chn, false);
+ k3_udma_glue_tdown_tx_chn(tx_chn[i].tx_chn, false);
i = wait_for_completion_timeout(&common->tdown_complete,
msecs_to_jiffies(1000));
if (!i)
dev_err(common->dev, "tx timeout\n");
for (i = 0; i < common->tx_ch_num; i++) {
- napi_disable(&common->tx_chns[i].napi_tx);
- hrtimer_cancel(&common->tx_chns[i].tx_hrtimer);
+ napi_disable(&tx_chn[i].napi_tx);
+ hrtimer_cancel(&tx_chn[i].tx_hrtimer);
}
for (i = 0; i < common->tx_ch_num; i++) {
- k3_udma_glue_reset_tx_chn(common->tx_chns[i].tx_chn,
- &common->tx_chns[i],
+ k3_udma_glue_reset_tx_chn(tx_chn[i].tx_chn, &tx_chn[i],
am65_cpsw_nuss_tx_cleanup);
- k3_udma_glue_disable_tx_chn(common->tx_chns[i].tx_chn);
+ k3_udma_glue_disable_tx_chn(tx_chn[i].tx_chn);
}
reinit_completion(&common->tdown_complete);
- k3_udma_glue_tdown_rx_chn(common->rx_chns.rx_chn, true);
+ k3_udma_glue_tdown_rx_chn(rx_chn->rx_chn, true);
if (common->pdata.quirks & AM64_CPSW_QUIRK_DMA_RX_TDOWN_IRQ) {
i = wait_for_completion_timeout(&common->tdown_complete, msecs_to_jiffies(1000));
@@ -621,17 +783,22 @@ static int am65_cpsw_nuss_common_stop(struct am65_cpsw_common *common)
hrtimer_cancel(&common->rx_hrtimer);
for (i = 0; i < AM65_CPSW_MAX_RX_FLOWS; i++)
- k3_udma_glue_reset_rx_chn(common->rx_chns.rx_chn, i,
- &common->rx_chns,
+ k3_udma_glue_reset_rx_chn(rx_chn->rx_chn, i, rx_chn,
am65_cpsw_nuss_rx_cleanup, !!i);
- k3_udma_glue_disable_rx_chn(common->rx_chns.rx_chn);
+ k3_udma_glue_disable_rx_chn(rx_chn->rx_chn);
cpsw_ale_stop(common->ale);
writel(0, common->cpsw_base + AM65_CPSW_REG_CTL);
writel(0, common->cpsw_base + AM65_CPSW_REG_STAT_PORT_EN);
+ for (i = 0; i < rx_chn->descs_num; i++) {
+ if (rx_chn->pages[i])
+ am65_cpsw_put_page(rx_chn, rx_chn->pages[i], false, i);
+ }
+ am65_cpsw_destroy_xdp_rxqs(common);
+
dev_dbg(common->dev, "cpsw_nuss stopped\n");
return 0;
}
@@ -749,16 +916,149 @@ runtime_put:
return ret;
}
-static void am65_cpsw_nuss_rx_ts(struct sk_buff *skb, u32 *psdata)
+static int am65_cpsw_xdp_tx_frame(struct net_device *ndev,
+ struct am65_cpsw_tx_chn *tx_chn,
+ struct xdp_frame *xdpf,
+ enum am65_cpsw_tx_buf_type buf_type)
+{
+ struct am65_cpsw_common *common = am65_ndev_to_common(ndev);
+ struct am65_cpsw_port *port = am65_ndev_to_port(ndev);
+ struct cppi5_host_desc_t *host_desc;
+ struct netdev_queue *netif_txq;
+ dma_addr_t dma_desc, dma_buf;
+ u32 pkt_len = xdpf->len;
+ void **swdata;
+ int ret;
+
+ host_desc = k3_cppi_desc_pool_alloc(tx_chn->desc_pool);
+ if (unlikely(!host_desc)) {
+ ndev->stats.tx_dropped++;
+ return -ENOMEM;
+ }
+
+ am65_cpsw_nuss_set_buf_type(tx_chn, host_desc, buf_type);
+
+ dma_buf = dma_map_single(tx_chn->dma_dev, xdpf->data,
+ pkt_len, DMA_TO_DEVICE);
+ if (unlikely(dma_mapping_error(tx_chn->dma_dev, dma_buf))) {
+ ndev->stats.tx_dropped++;
+ ret = -ENOMEM;
+ goto pool_free;
+ }
+
+ cppi5_hdesc_init(host_desc, CPPI5_INFO0_HDESC_EPIB_PRESENT,
+ AM65_CPSW_NAV_PS_DATA_SIZE);
+ cppi5_hdesc_set_pkttype(host_desc, AM65_CPSW_CPPI_TX_PKT_TYPE);
+ cppi5_hdesc_set_pktlen(host_desc, pkt_len);
+ cppi5_desc_set_pktids(&host_desc->hdr, 0, AM65_CPSW_CPPI_TX_FLOW_ID);
+ cppi5_desc_set_tags_ids(&host_desc->hdr, 0, port->port_id);
+
+ k3_udma_glue_tx_dma_to_cppi5_addr(tx_chn->tx_chn, &dma_buf);
+ cppi5_hdesc_attach_buf(host_desc, dma_buf, pkt_len, dma_buf, pkt_len);
+
+ swdata = cppi5_hdesc_get_swdata(host_desc);
+ *(swdata) = xdpf;
+
+ /* Report BQL before sending the packet */
+ netif_txq = netdev_get_tx_queue(ndev, tx_chn->id);
+ netdev_tx_sent_queue(netif_txq, pkt_len);
+
+ dma_desc = k3_cppi_desc_pool_virt2dma(tx_chn->desc_pool, host_desc);
+ if (AM65_CPSW_IS_CPSW2G(common)) {
+ ret = k3_udma_glue_push_tx_chn(tx_chn->tx_chn, host_desc,
+ dma_desc);
+ } else {
+ spin_lock_bh(&tx_chn->lock);
+ ret = k3_udma_glue_push_tx_chn(tx_chn->tx_chn, host_desc,
+ dma_desc);
+ spin_unlock_bh(&tx_chn->lock);
+ }
+ if (ret) {
+ /* Inform BQL */
+ netdev_tx_completed_queue(netif_txq, 1, pkt_len);
+ ndev->stats.tx_errors++;
+ goto dma_unmap;
+ }
+
+ return 0;
+
+dma_unmap:
+ k3_udma_glue_tx_cppi5_to_dma_addr(tx_chn->tx_chn, &dma_buf);
+ dma_unmap_single(tx_chn->dma_dev, dma_buf, pkt_len, DMA_TO_DEVICE);
+pool_free:
+ k3_cppi_desc_pool_free(tx_chn->desc_pool, host_desc);
+ return ret;
+}
+
+static int am65_cpsw_run_xdp(struct am65_cpsw_common *common,
+ struct am65_cpsw_port *port,
+ struct xdp_buff *xdp,
+ int desc_idx, int cpu, int *len)
{
- struct skb_shared_hwtstamps *ssh;
- u64 ns;
+ struct am65_cpsw_rx_chn *rx_chn = &common->rx_chns;
+ struct net_device *ndev = port->ndev;
+ int ret = AM65_CPSW_XDP_CONSUMED;
+ struct am65_cpsw_tx_chn *tx_chn;
+ struct netdev_queue *netif_txq;
+ struct xdp_frame *xdpf;
+ struct bpf_prog *prog;
+ struct page *page;
+ u32 act;
+
+ prog = READ_ONCE(port->xdp_prog);
+ if (!prog)
+ return AM65_CPSW_XDP_PASS;
+
+ act = bpf_prog_run_xdp(prog, xdp);
+ /* XDP prog might have changed packet data and boundaries */
+ *len = xdp->data_end - xdp->data;
+
+ switch (act) {
+ case XDP_PASS:
+ ret = AM65_CPSW_XDP_PASS;
+ goto out;
+ case XDP_TX:
+ tx_chn = &common->tx_chns[cpu % AM65_CPSW_MAX_TX_QUEUES];
+ netif_txq = netdev_get_tx_queue(ndev, tx_chn->id);
+
+ xdpf = xdp_convert_buff_to_frame(xdp);
+ if (unlikely(!xdpf))
+ break;
+
+ __netif_tx_lock(netif_txq, cpu);
+ ret = am65_cpsw_xdp_tx_frame(ndev, tx_chn, xdpf,
+ AM65_CPSW_TX_BUF_TYPE_XDP_TX);
+ __netif_tx_unlock(netif_txq);
+ if (ret)
+ break;
- ns = ((u64)psdata[1] << 32) | psdata[0];
+ ndev->stats.rx_bytes += *len;
+ ndev->stats.rx_packets++;
+ ret = AM65_CPSW_XDP_CONSUMED;
+ goto out;
+ case XDP_REDIRECT:
+ if (unlikely(xdp_do_redirect(ndev, xdp, prog)))
+ break;
+
+ ndev->stats.rx_bytes += *len;
+ ndev->stats.rx_packets++;
+ ret = AM65_CPSW_XDP_REDIRECT;
+ goto out;
+ default:
+ bpf_warn_invalid_xdp_action(ndev, prog, act);
+ fallthrough;
+ case XDP_ABORTED:
+ trace_xdp_exception(ndev, prog, act);
+ fallthrough;
+ case XDP_DROP:
+ ndev->stats.rx_dropped++;
+ }
+
+ page = virt_to_head_page(xdp->data);
+ am65_cpsw_put_page(rx_chn, page, true, desc_idx);
- ssh = skb_hwtstamps(skb);
- memset(ssh, 0, sizeof(*ssh));
- ssh->hwtstamp = ns_to_ktime(ns);
+out:
+ return ret;
}
/* RX psdata[2] word format - checksum information */
@@ -795,7 +1095,7 @@ static void am65_cpsw_nuss_rx_csum(struct sk_buff *skb, u32 csum_info)
}
static int am65_cpsw_nuss_rx_packets(struct am65_cpsw_common *common,
- u32 flow_idx)
+ u32 flow_idx, int cpu)
{
struct am65_cpsw_rx_chn *rx_chn = &common->rx_chns;
u32 buf_dma_len, pkt_len, port_id = 0, csum_info;
@@ -803,13 +1103,16 @@ static int am65_cpsw_nuss_rx_packets(struct am65_cpsw_common *common,
struct am65_cpsw_ndev_stats *stats;
struct cppi5_host_desc_t *desc_rx;
struct device *dev = common->dev;
- struct sk_buff *skb, *new_skb;
+ struct page *page, *new_page;
dma_addr_t desc_dma, buf_dma;
struct am65_cpsw_port *port;
+ int headroom, desc_idx, ret;
struct net_device *ndev;
+ struct sk_buff *skb;
+ struct xdp_buff xdp;
+ void *page_addr;
void **swdata;
u32 *psdata;
- int ret = 0;
ret = k3_udma_glue_pop_rx_chn(rx_chn->rx_chn, flow_idx, &desc_dma);
if (ret) {
@@ -830,7 +1133,8 @@ static int am65_cpsw_nuss_rx_packets(struct am65_cpsw_common *common,
__func__, flow_idx, &desc_dma);
swdata = cppi5_hdesc_get_swdata(desc_rx);
- skb = *swdata;
+ page_addr = *swdata;
+ page = virt_to_page(page_addr);
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);
@@ -838,12 +1142,7 @@ static int am65_cpsw_nuss_rx_packets(struct am65_cpsw_common *common,
dev_dbg(dev, "%s rx port_id:%d\n", __func__, port_id);
port = am65_common_get_port(common, port_id);
ndev = port->ndev;
- skb->dev = ndev;
-
psdata = cppi5_hdesc_get_psdata(desc_rx);
- /* add RX timestamp */
- if (port->rx_ts_enabled)
- am65_cpsw_nuss_rx_ts(skb, psdata);
csum_info = psdata[2];
dev_dbg(dev, "%s rx csum_info:%#x\n", __func__, csum_info);
@@ -851,36 +1150,64 @@ static int am65_cpsw_nuss_rx_packets(struct am65_cpsw_common *common,
k3_cppi_desc_pool_free(rx_chn->desc_pool, desc_rx);
- new_skb = netdev_alloc_skb_ip_align(ndev, AM65_CPSW_MAX_PACKET_SIZE);
- if (new_skb) {
- ndev_priv = netdev_priv(ndev);
- am65_cpsw_nuss_set_offload_fwd_mark(skb, ndev_priv->offload_fwd_mark);
- skb_put(skb, pkt_len);
- skb->protocol = eth_type_trans(skb, ndev);
- am65_cpsw_nuss_rx_csum(skb, csum_info);
- napi_gro_receive(&common->napi_rx, skb);
-
- stats = this_cpu_ptr(ndev_priv->stats);
-
- u64_stats_update_begin(&stats->syncp);
- stats->rx_packets++;
- stats->rx_bytes += pkt_len;
- u64_stats_update_end(&stats->syncp);
- kmemleak_not_leak(new_skb);
- } else {
- ndev->stats.rx_dropped++;
- new_skb = skb;
+ desc_idx = am65_cpsw_nuss_desc_idx(rx_chn->desc_pool, desc_rx,
+ rx_chn->dsize_log2);
+
+ skb = am65_cpsw_build_skb(page_addr, ndev,
+ AM65_CPSW_MAX_PACKET_SIZE);
+ if (unlikely(!skb)) {
+ new_page = page;
+ goto requeue;
+ }
+
+ if (port->xdp_prog) {
+ xdp_init_buff(&xdp, AM65_CPSW_MAX_PACKET_SIZE, &port->xdp_rxq);
+
+ xdp_prepare_buff(&xdp, page_addr, skb_headroom(skb),
+ pkt_len, false);
+
+ ret = am65_cpsw_run_xdp(common, port, &xdp, desc_idx,
+ cpu, &pkt_len);
+ if (ret != AM65_CPSW_XDP_PASS)
+ return ret;
+
+ /* Compute additional headroom to be reserved */
+ headroom = (xdp.data - xdp.data_hard_start) - skb_headroom(skb);
+ skb_reserve(skb, headroom);
}
+ ndev_priv = netdev_priv(ndev);
+ am65_cpsw_nuss_set_offload_fwd_mark(skb, ndev_priv->offload_fwd_mark);
+ skb_put(skb, pkt_len);
+ if (port->rx_ts_enabled)
+ am65_cpts_rx_timestamp(common->cpts, skb);
+ skb_mark_for_recycle(skb);
+ skb->protocol = eth_type_trans(skb, ndev);
+ am65_cpsw_nuss_rx_csum(skb, csum_info);
+ napi_gro_receive(&common->napi_rx, skb);
+
+ stats = this_cpu_ptr(ndev_priv->stats);
+
+ u64_stats_update_begin(&stats->syncp);
+ stats->rx_packets++;
+ stats->rx_bytes += pkt_len;
+ u64_stats_update_end(&stats->syncp);
+
+ new_page = page_pool_dev_alloc_pages(rx_chn->page_pool);
+ if (unlikely(!new_page))
+ return -ENOMEM;
+ rx_chn->pages[desc_idx] = new_page;
+
if (netif_dormant(ndev)) {
- dev_kfree_skb_any(new_skb);
+ am65_cpsw_put_page(rx_chn, new_page, true, desc_idx);
ndev->stats.rx_dropped++;
return 0;
}
- ret = am65_cpsw_nuss_rx_push(common, new_skb);
+requeue:
+ ret = am65_cpsw_nuss_rx_push(common, new_page);
if (WARN_ON(ret < 0)) {
- dev_kfree_skb_any(new_skb);
+ am65_cpsw_put_page(rx_chn, new_page, true, desc_idx);
ndev->stats.rx_errors++;
ndev->stats.rx_dropped++;
}
@@ -901,6 +1228,8 @@ static int am65_cpsw_nuss_rx_poll(struct napi_struct *napi_rx, int budget)
{
struct am65_cpsw_common *common = am65_cpsw_napi_to_common(napi_rx);
int flow = AM65_CPSW_MAX_RX_FLOWS;
+ int cpu = smp_processor_id();
+ bool xdp_redirect = false;
int cur_budget, ret;
int num_rx = 0;
@@ -909,9 +1238,12 @@ static int am65_cpsw_nuss_rx_poll(struct napi_struct *napi_rx, int budget)
cur_budget = budget - num_rx;
while (cur_budget--) {
- ret = am65_cpsw_nuss_rx_packets(common, flow);
- if (ret)
+ ret = am65_cpsw_nuss_rx_packets(common, flow, cpu);
+ if (ret) {
+ if (ret == AM65_CPSW_XDP_REDIRECT)
+ xdp_redirect = true;
break;
+ }
num_rx++;
}
@@ -919,6 +1251,9 @@ static int am65_cpsw_nuss_rx_poll(struct napi_struct *napi_rx, int budget)
break;
}
+ if (xdp_redirect)
+ xdp_do_flush();
+
dev_dbg(common->dev, "%s num_rx:%d %d\n", __func__, num_rx, budget);
if (num_rx < budget && napi_complete_done(napi_rx, num_rx)) {
@@ -938,8 +1273,8 @@ static int am65_cpsw_nuss_rx_poll(struct napi_struct *napi_rx, int budget)
}
static struct sk_buff *
-am65_cpsw_nuss_tx_compl_packet(struct am65_cpsw_tx_chn *tx_chn,
- dma_addr_t desc_dma)
+am65_cpsw_nuss_tx_compl_packet_skb(struct am65_cpsw_tx_chn *tx_chn,
+ dma_addr_t desc_dma)
{
struct am65_cpsw_ndev_priv *ndev_priv;
struct am65_cpsw_ndev_stats *stats;
@@ -968,6 +1303,39 @@ am65_cpsw_nuss_tx_compl_packet(struct am65_cpsw_tx_chn *tx_chn,
return skb;
}
+static struct xdp_frame *
+am65_cpsw_nuss_tx_compl_packet_xdp(struct am65_cpsw_common *common,
+ struct am65_cpsw_tx_chn *tx_chn,
+ dma_addr_t desc_dma,
+ struct net_device **ndev)
+{
+ struct am65_cpsw_ndev_priv *ndev_priv;
+ struct am65_cpsw_ndev_stats *stats;
+ struct cppi5_host_desc_t *desc_tx;
+ struct am65_cpsw_port *port;
+ struct xdp_frame *xdpf;
+ u32 port_id = 0;
+ void **swdata;
+
+ desc_tx = k3_cppi_desc_pool_dma2virt(tx_chn->desc_pool, desc_dma);
+ cppi5_desc_get_tags_ids(&desc_tx->hdr, NULL, &port_id);
+ swdata = cppi5_hdesc_get_swdata(desc_tx);
+ xdpf = *(swdata);
+ am65_cpsw_nuss_xmit_free(tx_chn, desc_tx);
+
+ port = am65_common_get_port(common, port_id);
+ *ndev = port->ndev;
+
+ ndev_priv = netdev_priv(*ndev);
+ stats = this_cpu_ptr(ndev_priv->stats);
+ u64_stats_update_begin(&stats->syncp);
+ stats->tx_packets++;
+ stats->tx_bytes += xdpf->len;
+ u64_stats_update_end(&stats->syncp);
+
+ return xdpf;
+}
+
static void am65_cpsw_nuss_tx_wake(struct am65_cpsw_tx_chn *tx_chn, struct net_device *ndev,
struct netdev_queue *netif_txq)
{
@@ -988,11 +1356,13 @@ static void am65_cpsw_nuss_tx_wake(struct am65_cpsw_tx_chn *tx_chn, struct net_d
static int am65_cpsw_nuss_tx_compl_packets(struct am65_cpsw_common *common,
int chn, unsigned int budget, bool *tdown)
{
+ enum am65_cpsw_tx_buf_type buf_type;
struct device *dev = common->dev;
struct am65_cpsw_tx_chn *tx_chn;
struct netdev_queue *netif_txq;
unsigned int total_bytes = 0;
struct net_device *ndev;
+ struct xdp_frame *xdpf;
struct sk_buff *skb;
dma_addr_t desc_dma;
int res, num_tx = 0;
@@ -1013,10 +1383,21 @@ static int am65_cpsw_nuss_tx_compl_packets(struct am65_cpsw_common *common,
break;
}
- skb = am65_cpsw_nuss_tx_compl_packet(tx_chn, desc_dma);
- total_bytes = skb->len;
- ndev = skb->dev;
- napi_consume_skb(skb, budget);
+ buf_type = am65_cpsw_nuss_buf_type(tx_chn, desc_dma);
+ if (buf_type == AM65_CPSW_TX_BUF_TYPE_SKB) {
+ skb = am65_cpsw_nuss_tx_compl_packet_skb(tx_chn, desc_dma);
+ ndev = skb->dev;
+ total_bytes = skb->len;
+ napi_consume_skb(skb, budget);
+ } else {
+ xdpf = am65_cpsw_nuss_tx_compl_packet_xdp(common, tx_chn,
+ desc_dma, &ndev);
+ total_bytes = xdpf->len;
+ if (buf_type == AM65_CPSW_TX_BUF_TYPE_XDP_TX)
+ xdp_return_frame_rx_napi(xdpf);
+ else
+ xdp_return_frame(xdpf);
+ }
num_tx++;
netif_txq = netdev_get_tx_queue(ndev, chn);
@@ -1034,11 +1415,13 @@ static int am65_cpsw_nuss_tx_compl_packets(struct am65_cpsw_common *common,
static int am65_cpsw_nuss_tx_compl_packets_2g(struct am65_cpsw_common *common,
int chn, unsigned int budget, bool *tdown)
{
+ enum am65_cpsw_tx_buf_type buf_type;
struct device *dev = common->dev;
struct am65_cpsw_tx_chn *tx_chn;
struct netdev_queue *netif_txq;
unsigned int total_bytes = 0;
struct net_device *ndev;
+ struct xdp_frame *xdpf;
struct sk_buff *skb;
dma_addr_t desc_dma;
int res, num_tx = 0;
@@ -1057,11 +1440,21 @@ static int am65_cpsw_nuss_tx_compl_packets_2g(struct am65_cpsw_common *common,
break;
}
- skb = am65_cpsw_nuss_tx_compl_packet(tx_chn, desc_dma);
-
- ndev = skb->dev;
- total_bytes += skb->len;
- napi_consume_skb(skb, budget);
+ buf_type = am65_cpsw_nuss_buf_type(tx_chn, desc_dma);
+ if (buf_type == AM65_CPSW_TX_BUF_TYPE_SKB) {
+ skb = am65_cpsw_nuss_tx_compl_packet_skb(tx_chn, desc_dma);
+ ndev = skb->dev;
+ total_bytes += skb->len;
+ napi_consume_skb(skb, budget);
+ } else {
+ xdpf = am65_cpsw_nuss_tx_compl_packet_xdp(common, tx_chn,
+ desc_dma, &ndev);
+ total_bytes += xdpf->len;
+ if (buf_type == AM65_CPSW_TX_BUF_TYPE_XDP_TX)
+ xdp_return_frame_rx_napi(xdpf);
+ else
+ xdp_return_frame(xdpf);
+ }
num_tx++;
}
@@ -1183,10 +1576,13 @@ static netdev_tx_t am65_cpsw_nuss_ndo_slave_xmit(struct sk_buff *skb,
goto busy_stop_q;
}
+ am65_cpsw_nuss_set_buf_type(tx_chn, first_desc,
+ AM65_CPSW_TX_BUF_TYPE_SKB);
+
cppi5_hdesc_init(first_desc, CPPI5_INFO0_HDESC_EPIB_PRESENT,
AM65_CPSW_NAV_PS_DATA_SIZE);
- cppi5_desc_set_pktids(&first_desc->hdr, 0, 0x3FFF);
- cppi5_hdesc_set_pkttype(first_desc, 0x7);
+ cppi5_desc_set_pktids(&first_desc->hdr, 0, AM65_CPSW_CPPI_TX_FLOW_ID);
+ cppi5_hdesc_set_pkttype(first_desc, AM65_CPSW_CPPI_TX_PKT_TYPE);
cppi5_desc_set_tags_ids(&first_desc->hdr, 0, port->port_id);
k3_udma_glue_tx_dma_to_cppi5_addr(tx_chn->tx_chn, &buf_dma);
@@ -1225,6 +1621,9 @@ static netdev_tx_t am65_cpsw_nuss_ndo_slave_xmit(struct sk_buff *skb,
goto busy_free_descs;
}
+ am65_cpsw_nuss_set_buf_type(tx_chn, next_desc,
+ AM65_CPSW_TX_BUF_TYPE_SKB);
+
buf_dma = skb_frag_dma_map(tx_chn->dma_dev, frag, 0, frag_size,
DMA_TO_DEVICE);
if (unlikely(dma_mapping_error(tx_chn->dma_dev, buf_dma))) {
@@ -1334,7 +1733,6 @@ static int am65_cpsw_nuss_ndo_slave_set_mac_address(struct net_device *ndev,
static int am65_cpsw_nuss_hwtstamp_set(struct net_device *ndev,
struct ifreq *ifr)
{
- struct am65_cpsw_common *common = am65_ndev_to_common(ndev);
struct am65_cpsw_port *port = am65_ndev_to_port(ndev);
u32 ts_ctrl, seq_id, ts_ctrl_ltype2, ts_vlan_ltype;
struct hwtstamp_config cfg;
@@ -1358,11 +1756,6 @@ static int am65_cpsw_nuss_hwtstamp_set(struct net_device *ndev,
case HWTSTAMP_FILTER_NONE:
port->rx_ts_enabled = false;
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:
@@ -1372,10 +1765,13 @@ static int am65_cpsw_nuss_hwtstamp_set(struct net_device *ndev,
case HWTSTAMP_FILTER_PTP_V2_EVENT:
case HWTSTAMP_FILTER_PTP_V2_SYNC:
case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ:
- case HWTSTAMP_FILTER_NTP_ALL:
port->rx_ts_enabled = true;
- cfg.rx_filter = HWTSTAMP_FILTER_ALL;
+ cfg.rx_filter = HWTSTAMP_FILTER_PTP_V2_EVENT;
break;
+ case HWTSTAMP_FILTER_ALL:
+ case HWTSTAMP_FILTER_SOME:
+ case HWTSTAMP_FILTER_NTP_ALL:
+ return -EOPNOTSUPP;
default:
return -ERANGE;
}
@@ -1405,6 +1801,10 @@ static int am65_cpsw_nuss_hwtstamp_set(struct net_device *ndev,
ts_ctrl |= AM65_CPSW_TS_TX_ANX_ALL_EN |
AM65_CPSW_PN_TS_CTL_TX_VLAN_LT1_EN;
+ if (port->rx_ts_enabled)
+ ts_ctrl |= AM65_CPSW_TS_RX_ANX_ALL_EN |
+ AM65_CPSW_PN_TS_CTL_RX_VLAN_LT1_EN;
+
writel(seq_id, port->port_base + AM65_CPSW_PORTN_REG_TS_SEQ_LTYPE_REG);
writel(ts_vlan_ltype, port->port_base +
AM65_CPSW_PORTN_REG_TS_VLAN_LTYPE_REG);
@@ -1412,9 +1812,6 @@ static int am65_cpsw_nuss_hwtstamp_set(struct net_device *ndev,
AM65_CPSW_PORTN_REG_TS_CTL_LTYPE2);
writel(ts_ctrl, port->port_base + AM65_CPSW_PORTN_REG_TS_CTL);
- /* en/dis RX timestamp */
- am65_cpts_rx_enable(common->cpts, port->rx_ts_enabled);
-
return copy_to_user(ifr->ifr_data, &cfg, sizeof(cfg)) ? -EFAULT : 0;
}
@@ -1431,7 +1828,7 @@ static int am65_cpsw_nuss_hwtstamp_get(struct net_device *ndev,
cfg.tx_type = port->tx_ts_enabled ?
HWTSTAMP_TX_ON : HWTSTAMP_TX_OFF;
cfg.rx_filter = port->rx_ts_enabled ?
- HWTSTAMP_FILTER_ALL : HWTSTAMP_FILTER_NONE;
+ HWTSTAMP_FILTER_PTP_V2_EVENT : HWTSTAMP_FILTER_NONE;
return copy_to_user(ifr->ifr_data, &cfg, sizeof(cfg)) ? -EFAULT : 0;
}
@@ -1488,6 +1885,59 @@ static void am65_cpsw_nuss_ndo_get_stats(struct net_device *dev,
stats->tx_dropped = dev->stats.tx_dropped;
}
+static int am65_cpsw_xdp_prog_setup(struct net_device *ndev,
+ struct bpf_prog *prog)
+{
+ struct am65_cpsw_port *port = am65_ndev_to_port(ndev);
+ bool running = netif_running(ndev);
+ struct bpf_prog *old_prog;
+
+ if (running)
+ am65_cpsw_nuss_ndo_slave_stop(ndev);
+
+ old_prog = xchg(&port->xdp_prog, prog);
+ if (old_prog)
+ bpf_prog_put(old_prog);
+
+ if (running)
+ return am65_cpsw_nuss_ndo_slave_open(ndev);
+
+ return 0;
+}
+
+static int am65_cpsw_ndo_bpf(struct net_device *ndev, struct netdev_bpf *bpf)
+{
+ switch (bpf->command) {
+ case XDP_SETUP_PROG:
+ return am65_cpsw_xdp_prog_setup(ndev, bpf->prog);
+ default:
+ return -EINVAL;
+ }
+}
+
+static int am65_cpsw_ndo_xdp_xmit(struct net_device *ndev, int n,
+ struct xdp_frame **frames, u32 flags)
+{
+ struct am65_cpsw_tx_chn *tx_chn;
+ struct netdev_queue *netif_txq;
+ int cpu = smp_processor_id();
+ int i, nxmit = 0;
+
+ tx_chn = &am65_ndev_to_common(ndev)->tx_chns[cpu % AM65_CPSW_MAX_TX_QUEUES];
+ netif_txq = netdev_get_tx_queue(ndev, tx_chn->id);
+
+ __netif_tx_lock(netif_txq, cpu);
+ for (i = 0; i < n; i++) {
+ if (am65_cpsw_xdp_tx_frame(ndev, tx_chn, frames[i],
+ AM65_CPSW_TX_BUF_TYPE_XDP_NDO))
+ break;
+ nxmit++;
+ }
+ __netif_tx_unlock(netif_txq);
+
+ return nxmit;
+}
+
static const struct net_device_ops am65_cpsw_nuss_netdev_ops = {
.ndo_open = am65_cpsw_nuss_ndo_slave_open,
.ndo_stop = am65_cpsw_nuss_ndo_slave_stop,
@@ -1502,6 +1952,8 @@ static const struct net_device_ops am65_cpsw_nuss_netdev_ops = {
.ndo_eth_ioctl = am65_cpsw_nuss_ndo_slave_ioctl,
.ndo_setup_tc = am65_cpsw_qos_ndo_setup_tc,
.ndo_set_tx_maxrate = am65_cpsw_qos_ndo_tx_p0_set_maxrate,
+ .ndo_bpf = am65_cpsw_ndo_bpf,
+ .ndo_xdp_xmit = am65_cpsw_ndo_xdp_xmit,
};
static void am65_cpsw_disable_phy(struct phy *phy)
@@ -1772,7 +2224,7 @@ static int am65_cpsw_nuss_init_tx_chns(struct am65_cpsw_common *common)
.mode = K3_RINGACC_RING_MODE_RING,
.flags = 0
};
- u32 hdesc_size;
+ u32 hdesc_size, hdesc_size_out;
int i, ret = 0;
hdesc_size = cppi5_hdesc_calc_size(true, AM65_CPSW_NAV_PS_DATA_SIZE,
@@ -1816,6 +2268,10 @@ static int am65_cpsw_nuss_init_tx_chns(struct am65_cpsw_common *common)
goto err;
}
+ hdesc_size_out = k3_cppi_desc_pool_desc_size(tx_chn->desc_pool);
+ tx_chn->dsize_log2 = __fls(hdesc_size_out);
+ WARN_ON(hdesc_size_out != (1 << tx_chn->dsize_log2));
+
tx_chn->irq = k3_udma_glue_tx_get_irq(tx_chn->tx_chn);
if (tx_chn->irq < 0) {
dev_err(dev, "Failed to get tx dma irq %d\n",
@@ -1862,8 +2318,8 @@ static void am65_cpsw_nuss_free_rx_chns(void *data)
static void am65_cpsw_nuss_remove_rx_chns(void *data)
{
struct am65_cpsw_common *common = data;
- struct am65_cpsw_rx_chn *rx_chn;
struct device *dev = common->dev;
+ struct am65_cpsw_rx_chn *rx_chn;
rx_chn = &common->rx_chns;
devm_remove_action(dev, am65_cpsw_nuss_free_rx_chns, common);
@@ -1873,11 +2329,7 @@ static void am65_cpsw_nuss_remove_rx_chns(void *data)
netif_napi_del(&common->napi_rx);
- if (!IS_ERR_OR_NULL(rx_chn->desc_pool))
- k3_cppi_desc_pool_destroy(rx_chn->desc_pool);
-
- if (!IS_ERR_OR_NULL(rx_chn->rx_chn))
- k3_udma_glue_release_rx_chn(rx_chn->rx_chn);
+ am65_cpsw_nuss_free_rx_chns(common);
common->rx_flow_id_base = -1;
}
@@ -1888,7 +2340,7 @@ static int am65_cpsw_nuss_init_rx_chns(struct am65_cpsw_common *common)
struct k3_udma_glue_rx_channel_cfg rx_cfg = { 0 };
u32 max_desc_num = AM65_CPSW_MAX_RX_DESC;
struct device *dev = common->dev;
- u32 hdesc_size;
+ u32 hdesc_size, hdesc_size_out;
u32 fdqring_id;
int i, ret = 0;
@@ -1920,6 +2372,17 @@ static int am65_cpsw_nuss_init_rx_chns(struct am65_cpsw_common *common)
goto err;
}
+ hdesc_size_out = k3_cppi_desc_pool_desc_size(rx_chn->desc_pool);
+ rx_chn->dsize_log2 = __fls(hdesc_size_out);
+ WARN_ON(hdesc_size_out != (1 << rx_chn->dsize_log2));
+
+ rx_chn->page_pool = NULL;
+
+ rx_chn->pages = devm_kcalloc(dev, rx_chn->descs_num,
+ sizeof(*rx_chn->pages), GFP_KERNEL);
+ if (!rx_chn->pages)
+ return -ENOMEM;
+
common->rx_flow_id_base =
k3_udma_glue_rx_get_flow_id_base(rx_chn->rx_chn);
dev_info(dev, "set new flow-id-base %u\n", common->rx_flow_id_base);
@@ -2252,6 +2715,9 @@ am65_cpsw_nuss_init_port_ndev(struct am65_cpsw_common *common, u32 port_idx)
NETIF_F_HW_TC;
port->ndev->features = port->ndev->hw_features |
NETIF_F_HW_VLAN_CTAG_FILTER;
+ port->ndev->xdp_features = NETDEV_XDP_ACT_BASIC |
+ NETDEV_XDP_ACT_REDIRECT |
+ NETDEV_XDP_ACT_NDO_XMIT;
port->ndev->vlan_features |= NETIF_F_SG;
port->ndev->netdev_ops = &am65_cpsw_nuss_netdev_ops;
port->ndev->ethtool_ops = &am65_cpsw_ethtool_ops_slave;
@@ -2315,6 +2781,8 @@ am65_cpsw_nuss_init_port_ndev(struct am65_cpsw_common *common, u32 port_idx)
if (ret)
dev_err(dev, "failed to add percpu stat free action %d\n", ret);
+ port->xdp_prog = NULL;
+
if (!common->dma_ndev)
common->dma_ndev = port->ndev;
@@ -2588,7 +3056,8 @@ static void am65_cpsw_init_port_switch_ale(struct am65_cpsw_port *port)
}
static int am65_cpsw_dl_switch_mode_set(struct devlink *dl, u32 id,
- struct devlink_param_gset_ctx *ctx)
+ struct devlink_param_gset_ctx *ctx,
+ struct netlink_ext_ack *extack)
{
struct am65_cpsw_devlink *dl_priv = devlink_priv(dl);
struct am65_cpsw_common *cpsw = dl_priv->common;
@@ -2793,6 +3262,8 @@ static void am65_cpsw_unregister_devlink(struct am65_cpsw_common *common)
static int am65_cpsw_nuss_register_ndevs(struct am65_cpsw_common *common)
{
+ struct am65_cpsw_rx_chn *rx_chan = &common->rx_chns;
+ struct am65_cpsw_tx_chn *tx_chan = common->tx_chns;
struct device *dev = common->dev;
struct am65_cpsw_port *port;
int ret = 0, i;
@@ -2805,6 +3276,22 @@ static int am65_cpsw_nuss_register_ndevs(struct am65_cpsw_common *common)
if (ret)
return ret;
+ /* The DMA Channels are not guaranteed to be in a clean state.
+ * Reset and disable them to ensure that they are back to the
+ * clean state and ready to be used.
+ */
+ for (i = 0; i < common->tx_ch_num; i++) {
+ k3_udma_glue_reset_tx_chn(tx_chan[i].tx_chn, &tx_chan[i],
+ am65_cpsw_nuss_tx_cleanup);
+ k3_udma_glue_disable_tx_chn(tx_chan[i].tx_chn);
+ }
+
+ for (i = 0; i < AM65_CPSW_MAX_RX_FLOWS; i++)
+ k3_udma_glue_reset_rx_chn(rx_chan->rx_chn, i, rx_chan,
+ am65_cpsw_nuss_rx_cleanup, !!i);
+
+ k3_udma_glue_disable_rx_chn(rx_chan->rx_chn);
+
ret = am65_cpsw_nuss_register_devlink(common);
if (ret)
return ret;
@@ -2904,7 +3391,8 @@ static const struct am65_cpsw_pdata j784s4_cpswxg_pdata = {
.quirks = 0,
.ale_dev_id = "am64-cpswxg",
.fdqring_mode = K3_RINGACC_RING_MODE_MESSAGE,
- .extra_modes = BIT(PHY_INTERFACE_MODE_QSGMII) | BIT(PHY_INTERFACE_MODE_USXGMII),
+ .extra_modes = BIT(PHY_INTERFACE_MODE_QSGMII) | BIT(PHY_INTERFACE_MODE_SGMII) |
+ BIT(PHY_INTERFACE_MODE_USXGMII),
};
static const struct of_device_id am65_cpsw_nuss_of_mtable[] = {
@@ -2940,9 +3428,9 @@ static int am65_cpsw_nuss_probe(struct platform_device *pdev)
struct device_node *node;
struct resource *res;
struct clk *clk;
+ int ale_entries;
u64 id_temp;
int ret, i;
- int ale_entries;
common = devm_kzalloc(dev, sizeof(struct am65_cpsw_common), GFP_KERNEL);
if (!common)
@@ -3154,10 +3642,10 @@ static int am65_cpsw_nuss_suspend(struct device *dev)
static int am65_cpsw_nuss_resume(struct device *dev)
{
struct am65_cpsw_common *common = dev_get_drvdata(dev);
+ struct am65_cpsw_host *host_p = am65_common_get_host(common);
struct am65_cpsw_port *port;
struct net_device *ndev;
int i, ret;
- struct am65_cpsw_host *host_p = am65_common_get_host(common);
ret = am65_cpsw_nuss_init_tx_chns(common);
if (ret)