168cf027fSGrygorii Strashko // SPDX-License-Identifier: GPL-2.0 2df828598SMugunthan V N /* 3df828598SMugunthan V N * Texas Instruments Ethernet Switch Driver 4df828598SMugunthan V N * 5df828598SMugunthan V N * Copyright (C) 2012 Texas Instruments 6df828598SMugunthan V N * 7df828598SMugunthan V N */ 8df828598SMugunthan V N 9df828598SMugunthan V N #include <linux/kernel.h> 10df828598SMugunthan V N #include <linux/io.h> 11df828598SMugunthan V N #include <linux/clk.h> 12df828598SMugunthan V N #include <linux/timer.h> 13df828598SMugunthan V N #include <linux/module.h> 14df828598SMugunthan V N #include <linux/platform_device.h> 15df828598SMugunthan V N #include <linux/irqreturn.h> 16df828598SMugunthan V N #include <linux/interrupt.h> 17df828598SMugunthan V N #include <linux/if_ether.h> 18df828598SMugunthan V N #include <linux/etherdevice.h> 19df828598SMugunthan V N #include <linux/netdevice.h> 202e5b38abSRichard Cochran #include <linux/net_tstamp.h> 21df828598SMugunthan V N #include <linux/phy.h> 223ff18849SGrygorii Strashko #include <linux/phy/phy.h> 23df828598SMugunthan V N #include <linux/workqueue.h> 24df828598SMugunthan V N #include <linux/delay.h> 25f150bd7fSMugunthan V N #include <linux/pm_runtime.h> 26e2b3e493SArnd Bergmann #include <linux/gpio/consumer.h> 272eb32b0aSMugunthan V N #include <linux/of.h> 289e42f715SHeiko Schocher #include <linux/of_mdio.h> 292eb32b0aSMugunthan V N #include <linux/of_net.h> 302eb32b0aSMugunthan V N #include <linux/of_device.h> 313b72c2feSMugunthan V N #include <linux/if_vlan.h> 32514c6032SRandy Dunlap #include <linux/kmemleak.h> 339611d6d6SIvan Khoronzhuk #include <linux/sys_soc.h> 349ed4050cSIvan Khoronzhuk #include <net/page_pool.h> 359ed4050cSIvan Khoronzhuk #include <linux/bpf.h> 369ed4050cSIvan Khoronzhuk #include <linux/bpf_trace.h> 379ed4050cSIvan Khoronzhuk #include <linux/filter.h> 38df828598SMugunthan V N 39739683b4SMugunthan V N #include <linux/pinctrl/consumer.h> 407929a668SIvan Khoronzhuk #include <net/pkt_cls.h> 41df828598SMugunthan V N 42dbe34724SMugunthan V N #include "cpsw.h" 43df828598SMugunthan V N #include "cpsw_ale.h" 44814b4a67SGrygorii Strashko #include "cpsw_priv.h" 45cfc08345SGrygorii Strashko #include "cpsw_sl.h" 462e5b38abSRichard Cochran #include "cpts.h" 47df828598SMugunthan V N #include "davinci_cpdma.h" 48df828598SMugunthan V N 4957d90148SIvan Khoronzhuk #include <net/pkt_sched.h> 5057d90148SIvan Khoronzhuk 51df828598SMugunthan V N static int debug_level; 52df828598SMugunthan V N module_param(debug_level, int, 0); 53df828598SMugunthan V N MODULE_PARM_DESC(debug_level, "cpsw debug level (NETIF_MSG bits)"); 54df828598SMugunthan V N 55df828598SMugunthan V N static int ale_ageout = 10; 56df828598SMugunthan V N module_param(ale_ageout, int, 0); 57df828598SMugunthan V N MODULE_PARM_DESC(ale_ageout, "cpsw ale ageout interval (seconds)"); 58df828598SMugunthan V N 59df828598SMugunthan V N static int rx_packet_max = CPSW_MAX_PACKET_SIZE; 60df828598SMugunthan V N module_param(rx_packet_max, int, 0); 61df828598SMugunthan V N MODULE_PARM_DESC(rx_packet_max, "maximum receive packet size (bytes)"); 62df828598SMugunthan V N 6390225bf0SGrygorii Strashko static int descs_pool_size = CPSW_CPDMA_DESCS_POOL_SIZE_DEFAULT; 6490225bf0SGrygorii Strashko module_param(descs_pool_size, int, 0444); 6590225bf0SGrygorii Strashko MODULE_PARM_DESC(descs_pool_size, "Number of CPDMA CPPI descriptors in pool"); 6690225bf0SGrygorii Strashko 679ed4050cSIvan Khoronzhuk /* The buf includes headroom compatible with both skb and xdpf */ 689ed4050cSIvan Khoronzhuk #define CPSW_HEADROOM_NA (max(XDP_PACKET_HEADROOM, NET_SKB_PAD) + NET_IP_ALIGN) 699ed4050cSIvan Khoronzhuk #define CPSW_HEADROOM ALIGN(CPSW_HEADROOM_NA, sizeof(long)) 709ed4050cSIvan Khoronzhuk 71df828598SMugunthan V N #define for_each_slave(priv, func, arg...) \ 72df828598SMugunthan V N do { \ 736e6ceaedSSebastian Siewior struct cpsw_slave *slave; \ 74606f3993SIvan Khoronzhuk struct cpsw_common *cpsw = (priv)->cpsw; \ 756e6ceaedSSebastian Siewior int n; \ 76606f3993SIvan Khoronzhuk if (cpsw->data.dual_emac) \ 77606f3993SIvan Khoronzhuk (func)((cpsw)->slaves + priv->emac_port, ##arg);\ 78d9ba8f9eSMugunthan V N else \ 79606f3993SIvan Khoronzhuk for (n = cpsw->data.slaves, \ 80606f3993SIvan Khoronzhuk slave = cpsw->slaves; \ 816e6ceaedSSebastian Siewior n; n--) \ 826e6ceaedSSebastian Siewior (func)(slave++, ##arg); \ 83df828598SMugunthan V N } while (0) 84d9ba8f9eSMugunthan V N 859ed4050cSIvan Khoronzhuk #define CPSW_XMETA_OFFSET ALIGN(sizeof(struct xdp_frame), sizeof(long)) 869ed4050cSIvan Khoronzhuk 879ed4050cSIvan Khoronzhuk #define CPSW_XDP_CONSUMED 1 889ed4050cSIvan Khoronzhuk #define CPSW_XDP_PASS 0 899ed4050cSIvan Khoronzhuk 9051a95337SGrygorii Strashko static int cpsw_slave_index_priv(struct cpsw_common *cpsw, 9151a95337SGrygorii Strashko struct cpsw_priv *priv) 9251a95337SGrygorii Strashko { 9351a95337SGrygorii Strashko return cpsw->data.dual_emac ? priv->emac_port : cpsw->data.active_slave; 9451a95337SGrygorii Strashko } 9551a95337SGrygorii Strashko 9651a95337SGrygorii Strashko static int cpsw_get_slave_port(u32 slave_num) 9751a95337SGrygorii Strashko { 9851a95337SGrygorii Strashko return slave_num + 1; 9951a95337SGrygorii Strashko } 10051a95337SGrygorii Strashko 10100fe4712SIvan Khoronzhuk static int cpsw_ndo_vlan_rx_add_vid(struct net_device *ndev, 10200fe4712SIvan Khoronzhuk __be16 proto, u16 vid); 10300fe4712SIvan Khoronzhuk 1040cd8f9ccSMugunthan V N static void cpsw_set_promiscious(struct net_device *ndev, bool enable) 1050cd8f9ccSMugunthan V N { 1062a05a622SIvan Khoronzhuk struct cpsw_common *cpsw = ndev_to_cpsw(ndev); 1072a05a622SIvan Khoronzhuk struct cpsw_ale *ale = cpsw->ale; 1080cd8f9ccSMugunthan V N int i; 1090cd8f9ccSMugunthan V N 110606f3993SIvan Khoronzhuk if (cpsw->data.dual_emac) { 1110cd8f9ccSMugunthan V N bool flag = false; 1120cd8f9ccSMugunthan V N 1130cd8f9ccSMugunthan V N /* Enabling promiscuous mode for one interface will be 1140cd8f9ccSMugunthan V N * common for both the interface as the interface shares 1150cd8f9ccSMugunthan V N * the same hardware resource. 1160cd8f9ccSMugunthan V N */ 117606f3993SIvan Khoronzhuk for (i = 0; i < cpsw->data.slaves; i++) 118606f3993SIvan Khoronzhuk if (cpsw->slaves[i].ndev->flags & IFF_PROMISC) 1190cd8f9ccSMugunthan V N flag = true; 1200cd8f9ccSMugunthan V N 1210cd8f9ccSMugunthan V N if (!enable && flag) { 1220cd8f9ccSMugunthan V N enable = true; 1230cd8f9ccSMugunthan V N dev_err(&ndev->dev, "promiscuity not disabled as the other interface is still in promiscuity mode\n"); 1240cd8f9ccSMugunthan V N } 1250cd8f9ccSMugunthan V N 1260cd8f9ccSMugunthan V N if (enable) { 1270cd8f9ccSMugunthan V N /* Enable Bypass */ 1280cd8f9ccSMugunthan V N cpsw_ale_control_set(ale, 0, ALE_BYPASS, 1); 1290cd8f9ccSMugunthan V N 1300cd8f9ccSMugunthan V N dev_dbg(&ndev->dev, "promiscuity enabled\n"); 1310cd8f9ccSMugunthan V N } else { 1320cd8f9ccSMugunthan V N /* Disable Bypass */ 1330cd8f9ccSMugunthan V N cpsw_ale_control_set(ale, 0, ALE_BYPASS, 0); 1340cd8f9ccSMugunthan V N dev_dbg(&ndev->dev, "promiscuity disabled\n"); 1350cd8f9ccSMugunthan V N } 1360cd8f9ccSMugunthan V N } else { 1370cd8f9ccSMugunthan V N if (enable) { 1380cd8f9ccSMugunthan V N unsigned long timeout = jiffies + HZ; 1390cd8f9ccSMugunthan V N 1406f979eb3SLennart Sorensen /* Disable Learn for all ports (host is port 0 and slaves are port 1 and up */ 141606f3993SIvan Khoronzhuk for (i = 0; i <= cpsw->data.slaves; i++) { 1420cd8f9ccSMugunthan V N cpsw_ale_control_set(ale, i, 1430cd8f9ccSMugunthan V N ALE_PORT_NOLEARN, 1); 1440cd8f9ccSMugunthan V N cpsw_ale_control_set(ale, i, 1450cd8f9ccSMugunthan V N ALE_PORT_NO_SA_UPDATE, 1); 1460cd8f9ccSMugunthan V N } 1470cd8f9ccSMugunthan V N 1480cd8f9ccSMugunthan V N /* Clear All Untouched entries */ 1490cd8f9ccSMugunthan V N cpsw_ale_control_set(ale, 0, ALE_AGEOUT, 1); 1500cd8f9ccSMugunthan V N do { 1510cd8f9ccSMugunthan V N cpu_relax(); 1520cd8f9ccSMugunthan V N if (cpsw_ale_control_get(ale, 0, ALE_AGEOUT)) 1530cd8f9ccSMugunthan V N break; 1540cd8f9ccSMugunthan V N } while (time_after(timeout, jiffies)); 1550cd8f9ccSMugunthan V N cpsw_ale_control_set(ale, 0, ALE_AGEOUT, 1); 1560cd8f9ccSMugunthan V N 1570cd8f9ccSMugunthan V N /* Clear all mcast from ALE */ 15861f1cef9SGrygorii Strashko cpsw_ale_flush_multicast(ale, ALE_ALL_PORTS, -1); 15915180ecaSIvan Khoronzhuk __hw_addr_ref_unsync_dev(&ndev->mc, ndev, NULL); 1600cd8f9ccSMugunthan V N 1610cd8f9ccSMugunthan V N /* Flood All Unicast Packets to Host port */ 1620cd8f9ccSMugunthan V N cpsw_ale_control_set(ale, 0, ALE_P0_UNI_FLOOD, 1); 1630cd8f9ccSMugunthan V N dev_dbg(&ndev->dev, "promiscuity enabled\n"); 1640cd8f9ccSMugunthan V N } else { 1656f979eb3SLennart Sorensen /* Don't Flood All Unicast Packets to Host port */ 1660cd8f9ccSMugunthan V N cpsw_ale_control_set(ale, 0, ALE_P0_UNI_FLOOD, 0); 1670cd8f9ccSMugunthan V N 1686f979eb3SLennart Sorensen /* Enable Learn for all ports (host is port 0 and slaves are port 1 and up */ 169606f3993SIvan Khoronzhuk for (i = 0; i <= cpsw->data.slaves; i++) { 1700cd8f9ccSMugunthan V N cpsw_ale_control_set(ale, i, 1710cd8f9ccSMugunthan V N ALE_PORT_NOLEARN, 0); 1720cd8f9ccSMugunthan V N cpsw_ale_control_set(ale, i, 1730cd8f9ccSMugunthan V N ALE_PORT_NO_SA_UPDATE, 0); 1740cd8f9ccSMugunthan V N } 1750cd8f9ccSMugunthan V N dev_dbg(&ndev->dev, "promiscuity disabled\n"); 1760cd8f9ccSMugunthan V N } 1770cd8f9ccSMugunthan V N } 1780cd8f9ccSMugunthan V N } 1790cd8f9ccSMugunthan V N 18015180ecaSIvan Khoronzhuk /** 18115180ecaSIvan Khoronzhuk * cpsw_set_mc - adds multicast entry to the table if it's not added or deletes 18215180ecaSIvan Khoronzhuk * if it's not deleted 18315180ecaSIvan Khoronzhuk * @ndev: device to sync 18415180ecaSIvan Khoronzhuk * @addr: address to be added or deleted 18515180ecaSIvan Khoronzhuk * @vid: vlan id, if vid < 0 set/unset address for real device 18615180ecaSIvan Khoronzhuk * @add: add address if the flag is set or remove otherwise 18715180ecaSIvan Khoronzhuk */ 18815180ecaSIvan Khoronzhuk static int cpsw_set_mc(struct net_device *ndev, const u8 *addr, 18915180ecaSIvan Khoronzhuk int vid, int add) 1905c50a856SMugunthan V N { 1915c50a856SMugunthan V N struct cpsw_priv *priv = netdev_priv(ndev); 192606f3993SIvan Khoronzhuk struct cpsw_common *cpsw = priv->cpsw; 19315180ecaSIvan Khoronzhuk int mask, flags, ret; 19425906052SMugunthan V N 19515180ecaSIvan Khoronzhuk if (vid < 0) { 19615180ecaSIvan Khoronzhuk if (cpsw->data.dual_emac) 197606f3993SIvan Khoronzhuk vid = cpsw->slaves[priv->emac_port].port_vlan; 19815180ecaSIvan Khoronzhuk else 1995da19489SIvan Khoronzhuk vid = 0; 2005da19489SIvan Khoronzhuk } 2015da19489SIvan Khoronzhuk 20215180ecaSIvan Khoronzhuk mask = cpsw->data.dual_emac ? ALE_PORT_HOST : ALE_ALL_PORTS; 20315180ecaSIvan Khoronzhuk flags = vid ? ALE_VLAN : 0; 20415180ecaSIvan Khoronzhuk 20515180ecaSIvan Khoronzhuk if (add) 20615180ecaSIvan Khoronzhuk ret = cpsw_ale_add_mcast(cpsw->ale, addr, mask, flags, vid, 0); 20715180ecaSIvan Khoronzhuk else 20815180ecaSIvan Khoronzhuk ret = cpsw_ale_del_mcast(cpsw->ale, addr, 0, flags, vid); 20915180ecaSIvan Khoronzhuk 21015180ecaSIvan Khoronzhuk return ret; 21115180ecaSIvan Khoronzhuk } 21215180ecaSIvan Khoronzhuk 21315180ecaSIvan Khoronzhuk static int cpsw_update_vlan_mc(struct net_device *vdev, int vid, void *ctx) 21415180ecaSIvan Khoronzhuk { 21515180ecaSIvan Khoronzhuk struct addr_sync_ctx *sync_ctx = ctx; 21615180ecaSIvan Khoronzhuk struct netdev_hw_addr *ha; 21715180ecaSIvan Khoronzhuk int found = 0, ret = 0; 21815180ecaSIvan Khoronzhuk 21915180ecaSIvan Khoronzhuk if (!vdev || !(vdev->flags & IFF_UP)) 22015180ecaSIvan Khoronzhuk return 0; 22115180ecaSIvan Khoronzhuk 22215180ecaSIvan Khoronzhuk /* vlan address is relevant if its sync_cnt != 0 */ 22315180ecaSIvan Khoronzhuk netdev_for_each_mc_addr(ha, vdev) { 22415180ecaSIvan Khoronzhuk if (ether_addr_equal(ha->addr, sync_ctx->addr)) { 22515180ecaSIvan Khoronzhuk found = ha->sync_cnt; 22615180ecaSIvan Khoronzhuk break; 22715180ecaSIvan Khoronzhuk } 22815180ecaSIvan Khoronzhuk } 22915180ecaSIvan Khoronzhuk 23015180ecaSIvan Khoronzhuk if (found) 23115180ecaSIvan Khoronzhuk sync_ctx->consumed++; 23215180ecaSIvan Khoronzhuk 23315180ecaSIvan Khoronzhuk if (sync_ctx->flush) { 23415180ecaSIvan Khoronzhuk if (!found) 23515180ecaSIvan Khoronzhuk cpsw_set_mc(sync_ctx->ndev, sync_ctx->addr, vid, 0); 23615180ecaSIvan Khoronzhuk return 0; 23715180ecaSIvan Khoronzhuk } 23815180ecaSIvan Khoronzhuk 23915180ecaSIvan Khoronzhuk if (found) 24015180ecaSIvan Khoronzhuk ret = cpsw_set_mc(sync_ctx->ndev, sync_ctx->addr, vid, 1); 24115180ecaSIvan Khoronzhuk 24215180ecaSIvan Khoronzhuk return ret; 24315180ecaSIvan Khoronzhuk } 24415180ecaSIvan Khoronzhuk 24515180ecaSIvan Khoronzhuk static int cpsw_add_mc_addr(struct net_device *ndev, const u8 *addr, int num) 24615180ecaSIvan Khoronzhuk { 24715180ecaSIvan Khoronzhuk struct addr_sync_ctx sync_ctx; 24815180ecaSIvan Khoronzhuk int ret; 24915180ecaSIvan Khoronzhuk 25015180ecaSIvan Khoronzhuk sync_ctx.consumed = 0; 25115180ecaSIvan Khoronzhuk sync_ctx.addr = addr; 25215180ecaSIvan Khoronzhuk sync_ctx.ndev = ndev; 25315180ecaSIvan Khoronzhuk sync_ctx.flush = 0; 25415180ecaSIvan Khoronzhuk 25515180ecaSIvan Khoronzhuk ret = vlan_for_each(ndev, cpsw_update_vlan_mc, &sync_ctx); 25615180ecaSIvan Khoronzhuk if (sync_ctx.consumed < num && !ret) 25715180ecaSIvan Khoronzhuk ret = cpsw_set_mc(ndev, addr, -1, 1); 25815180ecaSIvan Khoronzhuk 25915180ecaSIvan Khoronzhuk return ret; 26015180ecaSIvan Khoronzhuk } 26115180ecaSIvan Khoronzhuk 26215180ecaSIvan Khoronzhuk static int cpsw_del_mc_addr(struct net_device *ndev, const u8 *addr, int num) 26315180ecaSIvan Khoronzhuk { 26415180ecaSIvan Khoronzhuk struct addr_sync_ctx sync_ctx; 26515180ecaSIvan Khoronzhuk 26615180ecaSIvan Khoronzhuk sync_ctx.consumed = 0; 26715180ecaSIvan Khoronzhuk sync_ctx.addr = addr; 26815180ecaSIvan Khoronzhuk sync_ctx.ndev = ndev; 26915180ecaSIvan Khoronzhuk sync_ctx.flush = 1; 27015180ecaSIvan Khoronzhuk 27115180ecaSIvan Khoronzhuk vlan_for_each(ndev, cpsw_update_vlan_mc, &sync_ctx); 27215180ecaSIvan Khoronzhuk if (sync_ctx.consumed == num) 27315180ecaSIvan Khoronzhuk cpsw_set_mc(ndev, addr, -1, 0); 27415180ecaSIvan Khoronzhuk 27515180ecaSIvan Khoronzhuk return 0; 27615180ecaSIvan Khoronzhuk } 27715180ecaSIvan Khoronzhuk 27815180ecaSIvan Khoronzhuk static int cpsw_purge_vlan_mc(struct net_device *vdev, int vid, void *ctx) 27915180ecaSIvan Khoronzhuk { 28015180ecaSIvan Khoronzhuk struct addr_sync_ctx *sync_ctx = ctx; 28115180ecaSIvan Khoronzhuk struct netdev_hw_addr *ha; 28215180ecaSIvan Khoronzhuk int found = 0; 28315180ecaSIvan Khoronzhuk 28415180ecaSIvan Khoronzhuk if (!vdev || !(vdev->flags & IFF_UP)) 28515180ecaSIvan Khoronzhuk return 0; 28615180ecaSIvan Khoronzhuk 28715180ecaSIvan Khoronzhuk /* vlan address is relevant if its sync_cnt != 0 */ 28815180ecaSIvan Khoronzhuk netdev_for_each_mc_addr(ha, vdev) { 28915180ecaSIvan Khoronzhuk if (ether_addr_equal(ha->addr, sync_ctx->addr)) { 29015180ecaSIvan Khoronzhuk found = ha->sync_cnt; 29115180ecaSIvan Khoronzhuk break; 29215180ecaSIvan Khoronzhuk } 29315180ecaSIvan Khoronzhuk } 29415180ecaSIvan Khoronzhuk 29515180ecaSIvan Khoronzhuk if (!found) 29615180ecaSIvan Khoronzhuk return 0; 29715180ecaSIvan Khoronzhuk 29815180ecaSIvan Khoronzhuk sync_ctx->consumed++; 29915180ecaSIvan Khoronzhuk cpsw_set_mc(sync_ctx->ndev, sync_ctx->addr, vid, 0); 30015180ecaSIvan Khoronzhuk return 0; 30115180ecaSIvan Khoronzhuk } 30215180ecaSIvan Khoronzhuk 30315180ecaSIvan Khoronzhuk static int cpsw_purge_all_mc(struct net_device *ndev, const u8 *addr, int num) 30415180ecaSIvan Khoronzhuk { 30515180ecaSIvan Khoronzhuk struct addr_sync_ctx sync_ctx; 30615180ecaSIvan Khoronzhuk 30715180ecaSIvan Khoronzhuk sync_ctx.addr = addr; 30815180ecaSIvan Khoronzhuk sync_ctx.ndev = ndev; 30915180ecaSIvan Khoronzhuk sync_ctx.consumed = 0; 31015180ecaSIvan Khoronzhuk 31115180ecaSIvan Khoronzhuk vlan_for_each(ndev, cpsw_purge_vlan_mc, &sync_ctx); 31215180ecaSIvan Khoronzhuk if (sync_ctx.consumed < num) 31315180ecaSIvan Khoronzhuk cpsw_set_mc(ndev, addr, -1, 0); 31415180ecaSIvan Khoronzhuk 3155da19489SIvan Khoronzhuk return 0; 3165da19489SIvan Khoronzhuk } 3175da19489SIvan Khoronzhuk 3185da19489SIvan Khoronzhuk static void cpsw_ndo_set_rx_mode(struct net_device *ndev) 3195da19489SIvan Khoronzhuk { 32006095f34SGrygorii Strashko struct cpsw_priv *priv = netdev_priv(ndev); 32106095f34SGrygorii Strashko struct cpsw_common *cpsw = priv->cpsw; 32206095f34SGrygorii Strashko int slave_port = -1; 32306095f34SGrygorii Strashko 32406095f34SGrygorii Strashko if (cpsw->data.dual_emac) 32506095f34SGrygorii Strashko slave_port = priv->emac_port + 1; 3265c50a856SMugunthan V N 3275c50a856SMugunthan V N if (ndev->flags & IFF_PROMISC) { 3285c50a856SMugunthan V N /* Enable promiscuous mode */ 3290cd8f9ccSMugunthan V N cpsw_set_promiscious(ndev, true); 33006095f34SGrygorii Strashko cpsw_ale_set_allmulti(cpsw->ale, IFF_ALLMULTI, slave_port); 3315c50a856SMugunthan V N return; 3320cd8f9ccSMugunthan V N } else { 3330cd8f9ccSMugunthan V N /* Disable promiscuous mode */ 3340cd8f9ccSMugunthan V N cpsw_set_promiscious(ndev, false); 3355c50a856SMugunthan V N } 3365c50a856SMugunthan V N 3371e5c4bc4SLennart Sorensen /* Restore allmulti on vlans if necessary */ 33806095f34SGrygorii Strashko cpsw_ale_set_allmulti(cpsw->ale, 33906095f34SGrygorii Strashko ndev->flags & IFF_ALLMULTI, slave_port); 3401e5c4bc4SLennart Sorensen 34115180ecaSIvan Khoronzhuk /* add/remove mcast address either for real netdev or for vlan */ 34215180ecaSIvan Khoronzhuk __hw_addr_ref_sync_dev(&ndev->mc, ndev, cpsw_add_mc_addr, 34315180ecaSIvan Khoronzhuk cpsw_del_mc_addr); 3445c50a856SMugunthan V N } 3455c50a856SMugunthan V N 346c24eef28SGrygorii Strashko void cpsw_intr_enable(struct cpsw_common *cpsw) 347df828598SMugunthan V N { 348dda5f5feSGrygorii Strashko writel_relaxed(0xFF, &cpsw->wr_regs->tx_en); 349dda5f5feSGrygorii Strashko writel_relaxed(0xFF, &cpsw->wr_regs->rx_en); 350df828598SMugunthan V N 3512c836bd9SIvan Khoronzhuk cpdma_ctlr_int_ctrl(cpsw->dma, true); 352df828598SMugunthan V N return; 353df828598SMugunthan V N } 354df828598SMugunthan V N 355c24eef28SGrygorii Strashko void cpsw_intr_disable(struct cpsw_common *cpsw) 356df828598SMugunthan V N { 357dda5f5feSGrygorii Strashko writel_relaxed(0, &cpsw->wr_regs->tx_en); 358dda5f5feSGrygorii Strashko writel_relaxed(0, &cpsw->wr_regs->rx_en); 359df828598SMugunthan V N 3602c836bd9SIvan Khoronzhuk cpdma_ctlr_int_ctrl(cpsw->dma, false); 361df828598SMugunthan V N return; 362df828598SMugunthan V N } 363df828598SMugunthan V N 3649ed4050cSIvan Khoronzhuk static int cpsw_is_xdpf_handle(void *handle) 3659ed4050cSIvan Khoronzhuk { 3669ed4050cSIvan Khoronzhuk return (unsigned long)handle & BIT(0); 3679ed4050cSIvan Khoronzhuk } 3689ed4050cSIvan Khoronzhuk 3699ed4050cSIvan Khoronzhuk static void *cpsw_xdpf_to_handle(struct xdp_frame *xdpf) 3709ed4050cSIvan Khoronzhuk { 3719ed4050cSIvan Khoronzhuk return (void *)((unsigned long)xdpf | BIT(0)); 3729ed4050cSIvan Khoronzhuk } 3739ed4050cSIvan Khoronzhuk 3749ed4050cSIvan Khoronzhuk static struct xdp_frame *cpsw_handle_to_xdpf(void *handle) 3759ed4050cSIvan Khoronzhuk { 3769ed4050cSIvan Khoronzhuk return (struct xdp_frame *)((unsigned long)handle & ~BIT(0)); 3779ed4050cSIvan Khoronzhuk } 3789ed4050cSIvan Khoronzhuk 3799ed4050cSIvan Khoronzhuk struct __aligned(sizeof(long)) cpsw_meta_xdp { 3809ed4050cSIvan Khoronzhuk struct net_device *ndev; 3819ed4050cSIvan Khoronzhuk int ch; 3829ed4050cSIvan Khoronzhuk }; 3839ed4050cSIvan Khoronzhuk 384c24eef28SGrygorii Strashko void cpsw_tx_handler(void *token, int len, int status) 385df828598SMugunthan V N { 3869ed4050cSIvan Khoronzhuk struct cpsw_meta_xdp *xmeta; 3879ed4050cSIvan Khoronzhuk struct xdp_frame *xdpf; 3889ed4050cSIvan Khoronzhuk struct net_device *ndev; 389e05107e6SIvan Khoronzhuk struct netdev_queue *txq; 3909ed4050cSIvan Khoronzhuk struct sk_buff *skb; 3919ed4050cSIvan Khoronzhuk int ch; 3929ed4050cSIvan Khoronzhuk 3939ed4050cSIvan Khoronzhuk if (cpsw_is_xdpf_handle(token)) { 3949ed4050cSIvan Khoronzhuk xdpf = cpsw_handle_to_xdpf(token); 3959ed4050cSIvan Khoronzhuk xmeta = (void *)xdpf + CPSW_XMETA_OFFSET; 3969ed4050cSIvan Khoronzhuk ndev = xmeta->ndev; 3979ed4050cSIvan Khoronzhuk ch = xmeta->ch; 3989ed4050cSIvan Khoronzhuk xdp_return_frame(xdpf); 3999ed4050cSIvan Khoronzhuk } else { 4009ed4050cSIvan Khoronzhuk skb = token; 4019ed4050cSIvan Khoronzhuk ndev = skb->dev; 4029ed4050cSIvan Khoronzhuk ch = skb_get_queue_mapping(skb); 4039ed4050cSIvan Khoronzhuk cpts_tx_timestamp(ndev_to_cpsw(ndev)->cpts, skb); 4049ed4050cSIvan Khoronzhuk dev_kfree_skb_any(skb); 4059ed4050cSIvan Khoronzhuk } 406df828598SMugunthan V N 407fae50823SMugunthan V N /* Check whether the queue is stopped due to stalled tx dma, if the 408fae50823SMugunthan V N * queue is stopped then start the queue as we have free desc for tx 409fae50823SMugunthan V N */ 4109ed4050cSIvan Khoronzhuk txq = netdev_get_tx_queue(ndev, ch); 411e05107e6SIvan Khoronzhuk if (unlikely(netif_tx_queue_stopped(txq))) 412e05107e6SIvan Khoronzhuk netif_tx_wake_queue(txq); 413e05107e6SIvan Khoronzhuk 4148dc43ddcSTobias Klauser ndev->stats.tx_packets++; 4158dc43ddcSTobias Klauser ndev->stats.tx_bytes += len; 416df828598SMugunthan V N } 417df828598SMugunthan V N 418a3a41d2fSGrygorii Strashko static void cpsw_rx_vlan_encap(struct sk_buff *skb) 419a3a41d2fSGrygorii Strashko { 420a3a41d2fSGrygorii Strashko struct cpsw_priv *priv = netdev_priv(skb->dev); 421a3a41d2fSGrygorii Strashko struct cpsw_common *cpsw = priv->cpsw; 422a3a41d2fSGrygorii Strashko u32 rx_vlan_encap_hdr = *((u32 *)skb->data); 423a3a41d2fSGrygorii Strashko u16 vtag, vid, prio, pkt_type; 424a3a41d2fSGrygorii Strashko 425a3a41d2fSGrygorii Strashko /* Remove VLAN header encapsulation word */ 426a3a41d2fSGrygorii Strashko skb_pull(skb, CPSW_RX_VLAN_ENCAP_HDR_SIZE); 427a3a41d2fSGrygorii Strashko 428a3a41d2fSGrygorii Strashko pkt_type = (rx_vlan_encap_hdr >> 429a3a41d2fSGrygorii Strashko CPSW_RX_VLAN_ENCAP_HDR_PKT_TYPE_SHIFT) & 430a3a41d2fSGrygorii Strashko CPSW_RX_VLAN_ENCAP_HDR_PKT_TYPE_MSK; 431a3a41d2fSGrygorii Strashko /* Ignore unknown & Priority-tagged packets*/ 432a3a41d2fSGrygorii Strashko if (pkt_type == CPSW_RX_VLAN_ENCAP_HDR_PKT_RESERV || 433a3a41d2fSGrygorii Strashko pkt_type == CPSW_RX_VLAN_ENCAP_HDR_PKT_PRIO_TAG) 434a3a41d2fSGrygorii Strashko return; 435a3a41d2fSGrygorii Strashko 436a3a41d2fSGrygorii Strashko vid = (rx_vlan_encap_hdr >> 437a3a41d2fSGrygorii Strashko CPSW_RX_VLAN_ENCAP_HDR_VID_SHIFT) & 438a3a41d2fSGrygorii Strashko VLAN_VID_MASK; 439a3a41d2fSGrygorii Strashko /* Ignore vid 0 and pass packet as is */ 440a3a41d2fSGrygorii Strashko if (!vid) 441a3a41d2fSGrygorii Strashko return; 442a3a41d2fSGrygorii Strashko 4434b41d343SGrygorii Strashko /* Untag P0 packets if set for vlan */ 4444b41d343SGrygorii Strashko if (!cpsw_ale_get_vlan_p0_untag(cpsw->ale, vid)) { 445a3a41d2fSGrygorii Strashko prio = (rx_vlan_encap_hdr >> 446a3a41d2fSGrygorii Strashko CPSW_RX_VLAN_ENCAP_HDR_PRIO_SHIFT) & 447a3a41d2fSGrygorii Strashko CPSW_RX_VLAN_ENCAP_HDR_PRIO_MSK; 448a3a41d2fSGrygorii Strashko 449a3a41d2fSGrygorii Strashko vtag = (prio << VLAN_PRIO_SHIFT) | vid; 450a3a41d2fSGrygorii Strashko __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), vtag); 4514b41d343SGrygorii Strashko } 452a3a41d2fSGrygorii Strashko 453a3a41d2fSGrygorii Strashko /* strip vlan tag for VLAN-tagged packet */ 454a3a41d2fSGrygorii Strashko if (pkt_type == CPSW_RX_VLAN_ENCAP_HDR_PKT_VLAN_TAG) { 455a3a41d2fSGrygorii Strashko memmove(skb->data + VLAN_HLEN, skb->data, 2 * ETH_ALEN); 456a3a41d2fSGrygorii Strashko skb_pull(skb, VLAN_HLEN); 457a3a41d2fSGrygorii Strashko } 458a3a41d2fSGrygorii Strashko } 459a3a41d2fSGrygorii Strashko 4609ed4050cSIvan Khoronzhuk static int cpsw_xdp_tx_frame(struct cpsw_priv *priv, struct xdp_frame *xdpf, 4619ed4050cSIvan Khoronzhuk struct page *page) 4629ed4050cSIvan Khoronzhuk { 4639ed4050cSIvan Khoronzhuk struct cpsw_common *cpsw = priv->cpsw; 4649ed4050cSIvan Khoronzhuk struct cpsw_meta_xdp *xmeta; 4659ed4050cSIvan Khoronzhuk struct cpdma_chan *txch; 4669ed4050cSIvan Khoronzhuk dma_addr_t dma; 4679ed4050cSIvan Khoronzhuk int ret, port; 4689ed4050cSIvan Khoronzhuk 4699ed4050cSIvan Khoronzhuk xmeta = (void *)xdpf + CPSW_XMETA_OFFSET; 4709ed4050cSIvan Khoronzhuk xmeta->ndev = priv->ndev; 4719ed4050cSIvan Khoronzhuk xmeta->ch = 0; 4729ed4050cSIvan Khoronzhuk txch = cpsw->txv[0].ch; 4739ed4050cSIvan Khoronzhuk 4749ed4050cSIvan Khoronzhuk port = priv->emac_port + cpsw->data.dual_emac; 4759ed4050cSIvan Khoronzhuk if (page) { 4769ed4050cSIvan Khoronzhuk dma = page_pool_get_dma_addr(page); 4779ed4050cSIvan Khoronzhuk dma += xdpf->headroom + sizeof(struct xdp_frame); 4789ed4050cSIvan Khoronzhuk ret = cpdma_chan_submit_mapped(txch, cpsw_xdpf_to_handle(xdpf), 4799ed4050cSIvan Khoronzhuk dma, xdpf->len, port); 4809ed4050cSIvan Khoronzhuk } else { 4819ed4050cSIvan Khoronzhuk if (sizeof(*xmeta) > xdpf->headroom) { 4829ed4050cSIvan Khoronzhuk xdp_return_frame_rx_napi(xdpf); 4839ed4050cSIvan Khoronzhuk return -EINVAL; 4849ed4050cSIvan Khoronzhuk } 4859ed4050cSIvan Khoronzhuk 4869ed4050cSIvan Khoronzhuk ret = cpdma_chan_submit(txch, cpsw_xdpf_to_handle(xdpf), 4879ed4050cSIvan Khoronzhuk xdpf->data, xdpf->len, port); 4889ed4050cSIvan Khoronzhuk } 4899ed4050cSIvan Khoronzhuk 4909ed4050cSIvan Khoronzhuk if (ret) { 4919ed4050cSIvan Khoronzhuk priv->ndev->stats.tx_dropped++; 4929ed4050cSIvan Khoronzhuk xdp_return_frame_rx_napi(xdpf); 4939ed4050cSIvan Khoronzhuk } 4949ed4050cSIvan Khoronzhuk 4959ed4050cSIvan Khoronzhuk return ret; 4969ed4050cSIvan Khoronzhuk } 4979ed4050cSIvan Khoronzhuk 4989ed4050cSIvan Khoronzhuk static int cpsw_run_xdp(struct cpsw_priv *priv, int ch, struct xdp_buff *xdp, 4999ed4050cSIvan Khoronzhuk struct page *page) 5009ed4050cSIvan Khoronzhuk { 5019ed4050cSIvan Khoronzhuk struct cpsw_common *cpsw = priv->cpsw; 5029ed4050cSIvan Khoronzhuk struct net_device *ndev = priv->ndev; 5039ed4050cSIvan Khoronzhuk int ret = CPSW_XDP_CONSUMED; 5049ed4050cSIvan Khoronzhuk struct xdp_frame *xdpf; 5059ed4050cSIvan Khoronzhuk struct bpf_prog *prog; 5069ed4050cSIvan Khoronzhuk u32 act; 5079ed4050cSIvan Khoronzhuk 5089ed4050cSIvan Khoronzhuk rcu_read_lock(); 5099ed4050cSIvan Khoronzhuk 5109ed4050cSIvan Khoronzhuk prog = READ_ONCE(priv->xdp_prog); 5119ed4050cSIvan Khoronzhuk if (!prog) { 5129ed4050cSIvan Khoronzhuk ret = CPSW_XDP_PASS; 5139ed4050cSIvan Khoronzhuk goto out; 5149ed4050cSIvan Khoronzhuk } 5159ed4050cSIvan Khoronzhuk 5169ed4050cSIvan Khoronzhuk act = bpf_prog_run_xdp(prog, xdp); 5179ed4050cSIvan Khoronzhuk switch (act) { 5189ed4050cSIvan Khoronzhuk case XDP_PASS: 5199ed4050cSIvan Khoronzhuk ret = CPSW_XDP_PASS; 5209ed4050cSIvan Khoronzhuk break; 5219ed4050cSIvan Khoronzhuk case XDP_TX: 5229ed4050cSIvan Khoronzhuk xdpf = convert_to_xdp_frame(xdp); 5239ed4050cSIvan Khoronzhuk if (unlikely(!xdpf)) 5249ed4050cSIvan Khoronzhuk goto drop; 5259ed4050cSIvan Khoronzhuk 5269ed4050cSIvan Khoronzhuk cpsw_xdp_tx_frame(priv, xdpf, page); 5279ed4050cSIvan Khoronzhuk break; 5289ed4050cSIvan Khoronzhuk case XDP_REDIRECT: 5299ed4050cSIvan Khoronzhuk if (xdp_do_redirect(ndev, xdp, prog)) 5309ed4050cSIvan Khoronzhuk goto drop; 5319ed4050cSIvan Khoronzhuk 5329ed4050cSIvan Khoronzhuk /* Have to flush here, per packet, instead of doing it in bulk 5339ed4050cSIvan Khoronzhuk * at the end of the napi handler. The RX devices on this 5349ed4050cSIvan Khoronzhuk * particular hardware is sharing a common queue, so the 5359ed4050cSIvan Khoronzhuk * incoming device might change per packet. 5369ed4050cSIvan Khoronzhuk */ 5379ed4050cSIvan Khoronzhuk xdp_do_flush_map(); 5389ed4050cSIvan Khoronzhuk break; 5399ed4050cSIvan Khoronzhuk default: 5409ed4050cSIvan Khoronzhuk bpf_warn_invalid_xdp_action(act); 5419ed4050cSIvan Khoronzhuk /* fall through */ 5429ed4050cSIvan Khoronzhuk case XDP_ABORTED: 5439ed4050cSIvan Khoronzhuk trace_xdp_exception(ndev, prog, act); 5449ed4050cSIvan Khoronzhuk /* fall through -- handle aborts by dropping packet */ 5459ed4050cSIvan Khoronzhuk case XDP_DROP: 5469ed4050cSIvan Khoronzhuk goto drop; 5479ed4050cSIvan Khoronzhuk } 5489ed4050cSIvan Khoronzhuk out: 5499ed4050cSIvan Khoronzhuk rcu_read_unlock(); 5509ed4050cSIvan Khoronzhuk return ret; 5519ed4050cSIvan Khoronzhuk drop: 5529ed4050cSIvan Khoronzhuk rcu_read_unlock(); 5539ed4050cSIvan Khoronzhuk page_pool_recycle_direct(cpsw->page_pool[ch], page); 5549ed4050cSIvan Khoronzhuk return ret; 5559ed4050cSIvan Khoronzhuk } 5569ed4050cSIvan Khoronzhuk 5579ed4050cSIvan Khoronzhuk static unsigned int cpsw_rxbuf_total_len(unsigned int len) 5589ed4050cSIvan Khoronzhuk { 5599ed4050cSIvan Khoronzhuk len += CPSW_HEADROOM; 5609ed4050cSIvan Khoronzhuk len += SKB_DATA_ALIGN(sizeof(struct skb_shared_info)); 5619ed4050cSIvan Khoronzhuk 5629ed4050cSIvan Khoronzhuk return SKB_DATA_ALIGN(len); 5639ed4050cSIvan Khoronzhuk } 5649ed4050cSIvan Khoronzhuk 5659ed4050cSIvan Khoronzhuk static struct page_pool *cpsw_create_page_pool(struct cpsw_common *cpsw, 5669ed4050cSIvan Khoronzhuk int size) 5679ed4050cSIvan Khoronzhuk { 5689ed4050cSIvan Khoronzhuk struct page_pool_params pp_params; 5699ed4050cSIvan Khoronzhuk struct page_pool *pool; 5709ed4050cSIvan Khoronzhuk 5719ed4050cSIvan Khoronzhuk pp_params.order = 0; 5729ed4050cSIvan Khoronzhuk pp_params.flags = PP_FLAG_DMA_MAP; 5739ed4050cSIvan Khoronzhuk pp_params.pool_size = size; 5749ed4050cSIvan Khoronzhuk pp_params.nid = NUMA_NO_NODE; 5759ed4050cSIvan Khoronzhuk pp_params.dma_dir = DMA_BIDIRECTIONAL; 5769ed4050cSIvan Khoronzhuk pp_params.dev = cpsw->dev; 5779ed4050cSIvan Khoronzhuk 5789ed4050cSIvan Khoronzhuk pool = page_pool_create(&pp_params); 5799ed4050cSIvan Khoronzhuk if (IS_ERR(pool)) 5809ed4050cSIvan Khoronzhuk dev_err(cpsw->dev, "cannot create rx page pool\n"); 5819ed4050cSIvan Khoronzhuk 5829ed4050cSIvan Khoronzhuk return pool; 5839ed4050cSIvan Khoronzhuk } 5849ed4050cSIvan Khoronzhuk 5859ed4050cSIvan Khoronzhuk static int cpsw_ndev_create_xdp_rxq(struct cpsw_priv *priv, int ch) 5869ed4050cSIvan Khoronzhuk { 5879ed4050cSIvan Khoronzhuk struct cpsw_common *cpsw = priv->cpsw; 5889ed4050cSIvan Khoronzhuk struct xdp_rxq_info *rxq; 5899ed4050cSIvan Khoronzhuk struct page_pool *pool; 5909ed4050cSIvan Khoronzhuk int ret; 5919ed4050cSIvan Khoronzhuk 5929ed4050cSIvan Khoronzhuk pool = cpsw->page_pool[ch]; 5939ed4050cSIvan Khoronzhuk rxq = &priv->xdp_rxq[ch]; 5949ed4050cSIvan Khoronzhuk 5959ed4050cSIvan Khoronzhuk ret = xdp_rxq_info_reg(rxq, priv->ndev, ch); 5969ed4050cSIvan Khoronzhuk if (ret) 5979ed4050cSIvan Khoronzhuk return ret; 5989ed4050cSIvan Khoronzhuk 5999ed4050cSIvan Khoronzhuk ret = xdp_rxq_info_reg_mem_model(rxq, MEM_TYPE_PAGE_POOL, pool); 6009ed4050cSIvan Khoronzhuk if (ret) 6019ed4050cSIvan Khoronzhuk xdp_rxq_info_unreg(rxq); 6029ed4050cSIvan Khoronzhuk 6039ed4050cSIvan Khoronzhuk return ret; 6049ed4050cSIvan Khoronzhuk } 6059ed4050cSIvan Khoronzhuk 6069ed4050cSIvan Khoronzhuk static void cpsw_ndev_destroy_xdp_rxq(struct cpsw_priv *priv, int ch) 6079ed4050cSIvan Khoronzhuk { 6089ed4050cSIvan Khoronzhuk struct xdp_rxq_info *rxq = &priv->xdp_rxq[ch]; 6099ed4050cSIvan Khoronzhuk 6109ed4050cSIvan Khoronzhuk if (!xdp_rxq_info_is_reg(rxq)) 6119ed4050cSIvan Khoronzhuk return; 6129ed4050cSIvan Khoronzhuk 6139ed4050cSIvan Khoronzhuk xdp_rxq_info_unreg(rxq); 6149ed4050cSIvan Khoronzhuk } 6159ed4050cSIvan Khoronzhuk 6169ed4050cSIvan Khoronzhuk static int cpsw_create_rx_pool(struct cpsw_common *cpsw, int ch) 6179ed4050cSIvan Khoronzhuk { 6189ed4050cSIvan Khoronzhuk struct page_pool *pool; 6199ed4050cSIvan Khoronzhuk int ret = 0, pool_size; 6209ed4050cSIvan Khoronzhuk 6219ed4050cSIvan Khoronzhuk pool_size = cpdma_chan_get_rx_buf_num(cpsw->rxv[ch].ch); 6229ed4050cSIvan Khoronzhuk pool = cpsw_create_page_pool(cpsw, pool_size); 6239ed4050cSIvan Khoronzhuk if (IS_ERR(pool)) 6249ed4050cSIvan Khoronzhuk ret = PTR_ERR(pool); 6259ed4050cSIvan Khoronzhuk else 6269ed4050cSIvan Khoronzhuk cpsw->page_pool[ch] = pool; 6279ed4050cSIvan Khoronzhuk 6289ed4050cSIvan Khoronzhuk return ret; 6299ed4050cSIvan Khoronzhuk } 6309ed4050cSIvan Khoronzhuk 6319ed4050cSIvan Khoronzhuk void cpsw_destroy_xdp_rxqs(struct cpsw_common *cpsw) 6329ed4050cSIvan Khoronzhuk { 6339ed4050cSIvan Khoronzhuk struct net_device *ndev; 6349ed4050cSIvan Khoronzhuk int i, ch; 6359ed4050cSIvan Khoronzhuk 6369ed4050cSIvan Khoronzhuk for (ch = 0; ch < cpsw->rx_ch_num; ch++) { 6379ed4050cSIvan Khoronzhuk for (i = 0; i < cpsw->data.slaves; i++) { 6389ed4050cSIvan Khoronzhuk ndev = cpsw->slaves[i].ndev; 6399ed4050cSIvan Khoronzhuk if (!ndev) 6409ed4050cSIvan Khoronzhuk continue; 6419ed4050cSIvan Khoronzhuk 6429ed4050cSIvan Khoronzhuk cpsw_ndev_destroy_xdp_rxq(netdev_priv(ndev), ch); 6439ed4050cSIvan Khoronzhuk } 6449ed4050cSIvan Khoronzhuk 6459ed4050cSIvan Khoronzhuk page_pool_destroy(cpsw->page_pool[ch]); 6469ed4050cSIvan Khoronzhuk cpsw->page_pool[ch] = NULL; 6479ed4050cSIvan Khoronzhuk } 6489ed4050cSIvan Khoronzhuk } 6499ed4050cSIvan Khoronzhuk 6509ed4050cSIvan Khoronzhuk int cpsw_create_xdp_rxqs(struct cpsw_common *cpsw) 6519ed4050cSIvan Khoronzhuk { 6529ed4050cSIvan Khoronzhuk struct net_device *ndev; 6539ed4050cSIvan Khoronzhuk int i, ch, ret; 6549ed4050cSIvan Khoronzhuk 6559ed4050cSIvan Khoronzhuk for (ch = 0; ch < cpsw->rx_ch_num; ch++) { 6569ed4050cSIvan Khoronzhuk ret = cpsw_create_rx_pool(cpsw, ch); 6579ed4050cSIvan Khoronzhuk if (ret) 6589ed4050cSIvan Khoronzhuk goto err_cleanup; 6599ed4050cSIvan Khoronzhuk 6609ed4050cSIvan Khoronzhuk /* using same page pool is allowed as no running rx handlers 6619ed4050cSIvan Khoronzhuk * simultaneously for both ndevs 6629ed4050cSIvan Khoronzhuk */ 6639ed4050cSIvan Khoronzhuk for (i = 0; i < cpsw->data.slaves; i++) { 6649ed4050cSIvan Khoronzhuk ndev = cpsw->slaves[i].ndev; 6659ed4050cSIvan Khoronzhuk if (!ndev) 6669ed4050cSIvan Khoronzhuk continue; 6679ed4050cSIvan Khoronzhuk 6689ed4050cSIvan Khoronzhuk ret = cpsw_ndev_create_xdp_rxq(netdev_priv(ndev), ch); 6699ed4050cSIvan Khoronzhuk if (ret) 6709ed4050cSIvan Khoronzhuk goto err_cleanup; 6719ed4050cSIvan Khoronzhuk } 6729ed4050cSIvan Khoronzhuk } 6739ed4050cSIvan Khoronzhuk 6749ed4050cSIvan Khoronzhuk return 0; 6759ed4050cSIvan Khoronzhuk 6769ed4050cSIvan Khoronzhuk err_cleanup: 6779ed4050cSIvan Khoronzhuk cpsw_destroy_xdp_rxqs(cpsw); 6789ed4050cSIvan Khoronzhuk 6799ed4050cSIvan Khoronzhuk return ret; 6809ed4050cSIvan Khoronzhuk } 6819ed4050cSIvan Khoronzhuk 6821a3b5056SOlof Johansson static void cpsw_rx_handler(void *token, int len, int status) 683df828598SMugunthan V N { 6849ed4050cSIvan Khoronzhuk struct page *new_page, *page = token; 6859ed4050cSIvan Khoronzhuk void *pa = page_address(page); 6869ed4050cSIvan Khoronzhuk struct cpsw_meta_xdp *xmeta = pa + CPSW_XMETA_OFFSET; 6879ed4050cSIvan Khoronzhuk struct cpsw_common *cpsw = ndev_to_cpsw(xmeta->ndev); 6889ed4050cSIvan Khoronzhuk int pkt_size = cpsw->rx_packet_max; 6899ed4050cSIvan Khoronzhuk int ret = 0, port, ch = xmeta->ch; 6909ed4050cSIvan Khoronzhuk int headroom = CPSW_HEADROOM; 6919ed4050cSIvan Khoronzhuk struct net_device *ndev = xmeta->ndev; 692a9423120SIvan Khoronzhuk struct cpsw_priv *priv; 6939ed4050cSIvan Khoronzhuk struct page_pool *pool; 6949ed4050cSIvan Khoronzhuk struct sk_buff *skb; 6959ed4050cSIvan Khoronzhuk struct xdp_buff xdp; 6969ed4050cSIvan Khoronzhuk dma_addr_t dma; 697df828598SMugunthan V N 6989ed4050cSIvan Khoronzhuk if (cpsw->data.dual_emac && status >= 0) { 699fea49f60SIvan Khoronzhuk port = CPDMA_RX_SOURCE_PORT(status); 7009ed4050cSIvan Khoronzhuk if (port) 701fea49f60SIvan Khoronzhuk ndev = cpsw->slaves[--port].ndev; 702fea49f60SIvan Khoronzhuk } 703d9ba8f9eSMugunthan V N 7049ed4050cSIvan Khoronzhuk priv = netdev_priv(ndev); 7059ed4050cSIvan Khoronzhuk pool = cpsw->page_pool[ch]; 70616e5c57dSMugunthan V N if (unlikely(status < 0) || unlikely(!netif_running(ndev))) { 707a0e2c822SMugunthan V N /* In dual emac mode check for all interfaces */ 708d5bc1613SIvan Khoronzhuk if (cpsw->data.dual_emac && cpsw->usage_count && 709fe734d0aSIvan Khoronzhuk (status >= 0)) { 710a0e2c822SMugunthan V N /* The packet received is for the interface which 711a0e2c822SMugunthan V N * is already down and the other interface is up 712dbedd44eSJoe Perches * and running, instead of freeing which results 713a0e2c822SMugunthan V N * in reducing of the number of rx descriptor in 7149ed4050cSIvan Khoronzhuk * DMA engine, requeue page back to cpdma. 715a0e2c822SMugunthan V N */ 7169ed4050cSIvan Khoronzhuk new_page = page; 717a0e2c822SMugunthan V N goto requeue; 718a0e2c822SMugunthan V N } 719a0e2c822SMugunthan V N 7209ed4050cSIvan Khoronzhuk /* the interface is going down, pages are purged */ 7219ed4050cSIvan Khoronzhuk page_pool_recycle_direct(pool, page); 722df828598SMugunthan V N return; 723df828598SMugunthan V N } 724b4727e69SSebastian Siewior 7259ed4050cSIvan Khoronzhuk new_page = page_pool_dev_alloc_pages(pool); 7269ed4050cSIvan Khoronzhuk if (unlikely(!new_page)) { 7279ed4050cSIvan Khoronzhuk new_page = page; 7289ed4050cSIvan Khoronzhuk ndev->stats.rx_dropped++; 7299ed4050cSIvan Khoronzhuk goto requeue; 7309ed4050cSIvan Khoronzhuk } 7319ed4050cSIvan Khoronzhuk 7329ed4050cSIvan Khoronzhuk if (priv->xdp_prog) { 7339ed4050cSIvan Khoronzhuk if (status & CPDMA_RX_VLAN_ENCAP) { 7349ed4050cSIvan Khoronzhuk xdp.data = pa + CPSW_HEADROOM + 7359ed4050cSIvan Khoronzhuk CPSW_RX_VLAN_ENCAP_HDR_SIZE; 7369ed4050cSIvan Khoronzhuk xdp.data_end = xdp.data + len - 7379ed4050cSIvan Khoronzhuk CPSW_RX_VLAN_ENCAP_HDR_SIZE; 7389ed4050cSIvan Khoronzhuk } else { 7399ed4050cSIvan Khoronzhuk xdp.data = pa + CPSW_HEADROOM; 7409ed4050cSIvan Khoronzhuk xdp.data_end = xdp.data + len; 7419ed4050cSIvan Khoronzhuk } 7429ed4050cSIvan Khoronzhuk 7439ed4050cSIvan Khoronzhuk xdp_set_data_meta_invalid(&xdp); 7449ed4050cSIvan Khoronzhuk 7459ed4050cSIvan Khoronzhuk xdp.data_hard_start = pa; 7469ed4050cSIvan Khoronzhuk xdp.rxq = &priv->xdp_rxq[ch]; 7479ed4050cSIvan Khoronzhuk 7489ed4050cSIvan Khoronzhuk ret = cpsw_run_xdp(priv, ch, &xdp, page); 7499ed4050cSIvan Khoronzhuk if (ret != CPSW_XDP_PASS) 7509ed4050cSIvan Khoronzhuk goto requeue; 7519ed4050cSIvan Khoronzhuk 7529ed4050cSIvan Khoronzhuk /* XDP prog might have changed packet data and boundaries */ 7539ed4050cSIvan Khoronzhuk len = xdp.data_end - xdp.data; 7549ed4050cSIvan Khoronzhuk headroom = xdp.data - xdp.data_hard_start; 7559ed4050cSIvan Khoronzhuk 7569ed4050cSIvan Khoronzhuk /* XDP prog can modify vlan tag, so can't use encap header */ 7579ed4050cSIvan Khoronzhuk status &= ~CPDMA_RX_VLAN_ENCAP; 7589ed4050cSIvan Khoronzhuk } 7599ed4050cSIvan Khoronzhuk 7609ed4050cSIvan Khoronzhuk /* pass skb to netstack if no XDP prog or returned XDP_PASS */ 7619ed4050cSIvan Khoronzhuk skb = build_skb(pa, cpsw_rxbuf_total_len(pkt_size)); 7629ed4050cSIvan Khoronzhuk if (!skb) { 7639ed4050cSIvan Khoronzhuk ndev->stats.rx_dropped++; 7649ed4050cSIvan Khoronzhuk page_pool_recycle_direct(pool, page); 7659ed4050cSIvan Khoronzhuk goto requeue; 7669ed4050cSIvan Khoronzhuk } 7679ed4050cSIvan Khoronzhuk 7689ed4050cSIvan Khoronzhuk skb_reserve(skb, headroom); 769df828598SMugunthan V N skb_put(skb, len); 7709ed4050cSIvan Khoronzhuk skb->dev = ndev; 771a3a41d2fSGrygorii Strashko if (status & CPDMA_RX_VLAN_ENCAP) 772a3a41d2fSGrygorii Strashko cpsw_rx_vlan_encap(skb); 773a9423120SIvan Khoronzhuk if (priv->rx_ts_enabled) 7742a05a622SIvan Khoronzhuk cpts_rx_timestamp(cpsw->cpts, skb); 775df828598SMugunthan V N skb->protocol = eth_type_trans(skb, ndev); 7769ed4050cSIvan Khoronzhuk 7779ed4050cSIvan Khoronzhuk /* unmap page as no netstack skb page recycling */ 7789ed4050cSIvan Khoronzhuk page_pool_release_page(pool, page); 779df828598SMugunthan V N netif_receive_skb(skb); 7809ed4050cSIvan Khoronzhuk 7818dc43ddcSTobias Klauser ndev->stats.rx_bytes += len; 7828dc43ddcSTobias Klauser ndev->stats.rx_packets++; 783df828598SMugunthan V N 784a0e2c822SMugunthan V N requeue: 7859ed4050cSIvan Khoronzhuk xmeta = page_address(new_page) + CPSW_XMETA_OFFSET; 7869ed4050cSIvan Khoronzhuk xmeta->ndev = ndev; 7879ed4050cSIvan Khoronzhuk xmeta->ch = ch; 7889ed4050cSIvan Khoronzhuk 7899ed4050cSIvan Khoronzhuk dma = page_pool_get_dma_addr(new_page) + CPSW_HEADROOM; 7909ed4050cSIvan Khoronzhuk ret = cpdma_chan_submit_mapped(cpsw->rxv[ch].ch, new_page, dma, 7919ed4050cSIvan Khoronzhuk pkt_size, 0); 792871e8465SIvan Khoronzhuk if (ret < 0) { 793871e8465SIvan Khoronzhuk WARN_ON(ret == -ENOMEM); 7949ed4050cSIvan Khoronzhuk page_pool_recycle_direct(pool, new_page); 795df828598SMugunthan V N } 796871e8465SIvan Khoronzhuk } 797df828598SMugunthan V N 798c24eef28SGrygorii Strashko void cpsw_split_res(struct cpsw_common *cpsw) 79948e0a83eSIvan Khoronzhuk { 80032b78d85SIvan Khoronzhuk u32 consumed_rate = 0, bigest_rate = 0; 80148e0a83eSIvan Khoronzhuk struct cpsw_vector *txv = cpsw->txv; 80232b78d85SIvan Khoronzhuk int i, ch_weight, rlim_ch_num = 0; 80348e0a83eSIvan Khoronzhuk int budget, bigest_rate_ch = 0; 80448e0a83eSIvan Khoronzhuk u32 ch_rate, max_rate; 80548e0a83eSIvan Khoronzhuk int ch_budget = 0; 80648e0a83eSIvan Khoronzhuk 80748e0a83eSIvan Khoronzhuk for (i = 0; i < cpsw->tx_ch_num; i++) { 80848e0a83eSIvan Khoronzhuk ch_rate = cpdma_chan_get_rate(txv[i].ch); 80948e0a83eSIvan Khoronzhuk if (!ch_rate) 81048e0a83eSIvan Khoronzhuk continue; 81148e0a83eSIvan Khoronzhuk 81248e0a83eSIvan Khoronzhuk rlim_ch_num++; 81348e0a83eSIvan Khoronzhuk consumed_rate += ch_rate; 81448e0a83eSIvan Khoronzhuk } 81548e0a83eSIvan Khoronzhuk 81648e0a83eSIvan Khoronzhuk if (cpsw->tx_ch_num == rlim_ch_num) { 81748e0a83eSIvan Khoronzhuk max_rate = consumed_rate; 81832b78d85SIvan Khoronzhuk } else if (!rlim_ch_num) { 81932b78d85SIvan Khoronzhuk ch_budget = CPSW_POLL_WEIGHT / cpsw->tx_ch_num; 82032b78d85SIvan Khoronzhuk bigest_rate = 0; 82132b78d85SIvan Khoronzhuk max_rate = consumed_rate; 82248e0a83eSIvan Khoronzhuk } else { 8230be01b8eSIvan Khoronzhuk max_rate = cpsw->speed * 1000; 8240be01b8eSIvan Khoronzhuk 8250be01b8eSIvan Khoronzhuk /* if max_rate is less then expected due to reduced link speed, 8260be01b8eSIvan Khoronzhuk * split proportionally according next potential max speed 8270be01b8eSIvan Khoronzhuk */ 8280be01b8eSIvan Khoronzhuk if (max_rate < consumed_rate) 8290be01b8eSIvan Khoronzhuk max_rate *= 10; 8300be01b8eSIvan Khoronzhuk 8310be01b8eSIvan Khoronzhuk if (max_rate < consumed_rate) 8320be01b8eSIvan Khoronzhuk max_rate *= 10; 83332b78d85SIvan Khoronzhuk 83448e0a83eSIvan Khoronzhuk ch_budget = (consumed_rate * CPSW_POLL_WEIGHT) / max_rate; 83548e0a83eSIvan Khoronzhuk ch_budget = (CPSW_POLL_WEIGHT - ch_budget) / 83648e0a83eSIvan Khoronzhuk (cpsw->tx_ch_num - rlim_ch_num); 83748e0a83eSIvan Khoronzhuk bigest_rate = (max_rate - consumed_rate) / 83848e0a83eSIvan Khoronzhuk (cpsw->tx_ch_num - rlim_ch_num); 83948e0a83eSIvan Khoronzhuk } 84048e0a83eSIvan Khoronzhuk 84132b78d85SIvan Khoronzhuk /* split tx weight/budget */ 84248e0a83eSIvan Khoronzhuk budget = CPSW_POLL_WEIGHT; 84348e0a83eSIvan Khoronzhuk for (i = 0; i < cpsw->tx_ch_num; i++) { 84448e0a83eSIvan Khoronzhuk ch_rate = cpdma_chan_get_rate(txv[i].ch); 84548e0a83eSIvan Khoronzhuk if (ch_rate) { 84648e0a83eSIvan Khoronzhuk txv[i].budget = (ch_rate * CPSW_POLL_WEIGHT) / max_rate; 84748e0a83eSIvan Khoronzhuk if (!txv[i].budget) 84832b78d85SIvan Khoronzhuk txv[i].budget++; 84948e0a83eSIvan Khoronzhuk if (ch_rate > bigest_rate) { 85048e0a83eSIvan Khoronzhuk bigest_rate_ch = i; 85148e0a83eSIvan Khoronzhuk bigest_rate = ch_rate; 85248e0a83eSIvan Khoronzhuk } 85332b78d85SIvan Khoronzhuk 85432b78d85SIvan Khoronzhuk ch_weight = (ch_rate * 100) / max_rate; 85532b78d85SIvan Khoronzhuk if (!ch_weight) 85632b78d85SIvan Khoronzhuk ch_weight++; 85732b78d85SIvan Khoronzhuk cpdma_chan_set_weight(cpsw->txv[i].ch, ch_weight); 85848e0a83eSIvan Khoronzhuk } else { 85948e0a83eSIvan Khoronzhuk txv[i].budget = ch_budget; 86048e0a83eSIvan Khoronzhuk if (!bigest_rate_ch) 86148e0a83eSIvan Khoronzhuk bigest_rate_ch = i; 86232b78d85SIvan Khoronzhuk cpdma_chan_set_weight(cpsw->txv[i].ch, 0); 86348e0a83eSIvan Khoronzhuk } 86448e0a83eSIvan Khoronzhuk 86548e0a83eSIvan Khoronzhuk budget -= txv[i].budget; 86648e0a83eSIvan Khoronzhuk } 86748e0a83eSIvan Khoronzhuk 86848e0a83eSIvan Khoronzhuk if (budget) 86948e0a83eSIvan Khoronzhuk txv[bigest_rate_ch].budget += budget; 87048e0a83eSIvan Khoronzhuk 87148e0a83eSIvan Khoronzhuk /* split rx budget */ 87248e0a83eSIvan Khoronzhuk budget = CPSW_POLL_WEIGHT; 87348e0a83eSIvan Khoronzhuk ch_budget = budget / cpsw->rx_ch_num; 87448e0a83eSIvan Khoronzhuk for (i = 0; i < cpsw->rx_ch_num; i++) { 87548e0a83eSIvan Khoronzhuk cpsw->rxv[i].budget = ch_budget; 87648e0a83eSIvan Khoronzhuk budget -= ch_budget; 87748e0a83eSIvan Khoronzhuk } 87848e0a83eSIvan Khoronzhuk 87948e0a83eSIvan Khoronzhuk if (budget) 88048e0a83eSIvan Khoronzhuk cpsw->rxv[0].budget += budget; 88148e0a83eSIvan Khoronzhuk } 88248e0a83eSIvan Khoronzhuk 883c03abd84SFelipe Balbi static irqreturn_t cpsw_tx_interrupt(int irq, void *dev_id) 884df828598SMugunthan V N { 885dbc4ec52SIvan Khoronzhuk struct cpsw_common *cpsw = dev_id; 8867ce67a38SFelipe Balbi 8875d8d0d4dSIvan Khoronzhuk writel(0, &cpsw->wr_regs->tx_en); 8882c836bd9SIvan Khoronzhuk cpdma_ctlr_eoi(cpsw->dma, CPDMA_EOI_TX); 889c03abd84SFelipe Balbi 890e38b5a3dSIvan Khoronzhuk if (cpsw->quirk_irq) { 891e38b5a3dSIvan Khoronzhuk disable_irq_nosync(cpsw->irqs_table[1]); 892e38b5a3dSIvan Khoronzhuk cpsw->tx_irq_disabled = true; 8937da11600SMugunthan V N } 8947da11600SMugunthan V N 895dbc4ec52SIvan Khoronzhuk napi_schedule(&cpsw->napi_tx); 896c03abd84SFelipe Balbi return IRQ_HANDLED; 897c03abd84SFelipe Balbi } 898c03abd84SFelipe Balbi 899c03abd84SFelipe Balbi static irqreturn_t cpsw_rx_interrupt(int irq, void *dev_id) 900c03abd84SFelipe Balbi { 901dbc4ec52SIvan Khoronzhuk struct cpsw_common *cpsw = dev_id; 902c03abd84SFelipe Balbi 9032c836bd9SIvan Khoronzhuk cpdma_ctlr_eoi(cpsw->dma, CPDMA_EOI_RX); 9045d8d0d4dSIvan Khoronzhuk writel(0, &cpsw->wr_regs->rx_en); 905fd51cf19SSebastian Siewior 906e38b5a3dSIvan Khoronzhuk if (cpsw->quirk_irq) { 907e38b5a3dSIvan Khoronzhuk disable_irq_nosync(cpsw->irqs_table[0]); 908e38b5a3dSIvan Khoronzhuk cpsw->rx_irq_disabled = true; 9097da11600SMugunthan V N } 9107da11600SMugunthan V N 911dbc4ec52SIvan Khoronzhuk napi_schedule(&cpsw->napi_rx); 912df828598SMugunthan V N return IRQ_HANDLED; 913df828598SMugunthan V N } 914df828598SMugunthan V N 9159611d6d6SIvan Khoronzhuk static int cpsw_tx_mq_poll(struct napi_struct *napi_tx, int budget) 916df828598SMugunthan V N { 917e05107e6SIvan Khoronzhuk u32 ch_map; 9188feb0a19SIvan Khoronzhuk int num_tx, cur_budget, ch; 919dbc4ec52SIvan Khoronzhuk struct cpsw_common *cpsw = napi_to_cpsw(napi_tx); 9208feb0a19SIvan Khoronzhuk struct cpsw_vector *txv; 92132a7432cSMugunthan V N 922e05107e6SIvan Khoronzhuk /* process every unprocessed channel */ 923e05107e6SIvan Khoronzhuk ch_map = cpdma_ctrl_txchs_state(cpsw->dma); 92479b3325dSIvan Khoronzhuk for (ch = 0, num_tx = 0; ch_map & 0xff; ch_map <<= 1, ch++) { 92579b3325dSIvan Khoronzhuk if (!(ch_map & 0x80)) 926e05107e6SIvan Khoronzhuk continue; 927e05107e6SIvan Khoronzhuk 9288feb0a19SIvan Khoronzhuk txv = &cpsw->txv[ch]; 9298feb0a19SIvan Khoronzhuk if (unlikely(txv->budget > budget - num_tx)) 9308feb0a19SIvan Khoronzhuk cur_budget = budget - num_tx; 9318feb0a19SIvan Khoronzhuk else 9328feb0a19SIvan Khoronzhuk cur_budget = txv->budget; 9338feb0a19SIvan Khoronzhuk 9348feb0a19SIvan Khoronzhuk num_tx += cpdma_chan_process(txv->ch, cur_budget); 935342934a5SIvan Khoronzhuk if (num_tx >= budget) 936342934a5SIvan Khoronzhuk break; 937e05107e6SIvan Khoronzhuk } 938e05107e6SIvan Khoronzhuk 93932a7432cSMugunthan V N if (num_tx < budget) { 94032a7432cSMugunthan V N napi_complete(napi_tx); 9415d8d0d4dSIvan Khoronzhuk writel(0xff, &cpsw->wr_regs->tx_en); 9429611d6d6SIvan Khoronzhuk } 9439611d6d6SIvan Khoronzhuk 9449611d6d6SIvan Khoronzhuk return num_tx; 9459611d6d6SIvan Khoronzhuk } 9469611d6d6SIvan Khoronzhuk 9479611d6d6SIvan Khoronzhuk static int cpsw_tx_poll(struct napi_struct *napi_tx, int budget) 9489611d6d6SIvan Khoronzhuk { 9499611d6d6SIvan Khoronzhuk struct cpsw_common *cpsw = napi_to_cpsw(napi_tx); 9509611d6d6SIvan Khoronzhuk int num_tx; 9519611d6d6SIvan Khoronzhuk 9529611d6d6SIvan Khoronzhuk num_tx = cpdma_chan_process(cpsw->txv[0].ch, budget); 9539611d6d6SIvan Khoronzhuk if (num_tx < budget) { 9549611d6d6SIvan Khoronzhuk napi_complete(napi_tx); 9559611d6d6SIvan Khoronzhuk writel(0xff, &cpsw->wr_regs->tx_en); 9569611d6d6SIvan Khoronzhuk if (cpsw->tx_irq_disabled) { 957e38b5a3dSIvan Khoronzhuk cpsw->tx_irq_disabled = false; 958e38b5a3dSIvan Khoronzhuk enable_irq(cpsw->irqs_table[1]); 9597da11600SMugunthan V N } 96032a7432cSMugunthan V N } 96132a7432cSMugunthan V N 96232a7432cSMugunthan V N return num_tx; 96332a7432cSMugunthan V N } 96432a7432cSMugunthan V N 9659611d6d6SIvan Khoronzhuk static int cpsw_rx_mq_poll(struct napi_struct *napi_rx, int budget) 96632a7432cSMugunthan V N { 967e05107e6SIvan Khoronzhuk u32 ch_map; 9688feb0a19SIvan Khoronzhuk int num_rx, cur_budget, ch; 969dbc4ec52SIvan Khoronzhuk struct cpsw_common *cpsw = napi_to_cpsw(napi_rx); 9708feb0a19SIvan Khoronzhuk struct cpsw_vector *rxv; 971510a1e72SMugunthan V N 972e05107e6SIvan Khoronzhuk /* process every unprocessed channel */ 973e05107e6SIvan Khoronzhuk ch_map = cpdma_ctrl_rxchs_state(cpsw->dma); 974342934a5SIvan Khoronzhuk for (ch = 0, num_rx = 0; ch_map; ch_map >>= 1, ch++) { 975e05107e6SIvan Khoronzhuk if (!(ch_map & 0x01)) 976e05107e6SIvan Khoronzhuk continue; 977e05107e6SIvan Khoronzhuk 9788feb0a19SIvan Khoronzhuk rxv = &cpsw->rxv[ch]; 9798feb0a19SIvan Khoronzhuk if (unlikely(rxv->budget > budget - num_rx)) 9808feb0a19SIvan Khoronzhuk cur_budget = budget - num_rx; 9818feb0a19SIvan Khoronzhuk else 9828feb0a19SIvan Khoronzhuk cur_budget = rxv->budget; 9838feb0a19SIvan Khoronzhuk 9848feb0a19SIvan Khoronzhuk num_rx += cpdma_chan_process(rxv->ch, cur_budget); 985342934a5SIvan Khoronzhuk if (num_rx >= budget) 986342934a5SIvan Khoronzhuk break; 987e05107e6SIvan Khoronzhuk } 988e05107e6SIvan Khoronzhuk 989510a1e72SMugunthan V N if (num_rx < budget) { 9906ad20165SEric Dumazet napi_complete_done(napi_rx, num_rx); 9915d8d0d4dSIvan Khoronzhuk writel(0xff, &cpsw->wr_regs->rx_en); 9929611d6d6SIvan Khoronzhuk } 9939611d6d6SIvan Khoronzhuk 9949611d6d6SIvan Khoronzhuk return num_rx; 9959611d6d6SIvan Khoronzhuk } 9969611d6d6SIvan Khoronzhuk 9979611d6d6SIvan Khoronzhuk static int cpsw_rx_poll(struct napi_struct *napi_rx, int budget) 9989611d6d6SIvan Khoronzhuk { 9999611d6d6SIvan Khoronzhuk struct cpsw_common *cpsw = napi_to_cpsw(napi_rx); 10009611d6d6SIvan Khoronzhuk int num_rx; 10019611d6d6SIvan Khoronzhuk 10029611d6d6SIvan Khoronzhuk num_rx = cpdma_chan_process(cpsw->rxv[0].ch, budget); 10039611d6d6SIvan Khoronzhuk if (num_rx < budget) { 10049611d6d6SIvan Khoronzhuk napi_complete_done(napi_rx, num_rx); 10059611d6d6SIvan Khoronzhuk writel(0xff, &cpsw->wr_regs->rx_en); 10069611d6d6SIvan Khoronzhuk if (cpsw->rx_irq_disabled) { 1007e38b5a3dSIvan Khoronzhuk cpsw->rx_irq_disabled = false; 1008e38b5a3dSIvan Khoronzhuk enable_irq(cpsw->irqs_table[0]); 10097da11600SMugunthan V N } 1010510a1e72SMugunthan V N } 1011df828598SMugunthan V N 1012df828598SMugunthan V N return num_rx; 1013df828598SMugunthan V N } 1014df828598SMugunthan V N 1015df828598SMugunthan V N static inline void soft_reset(const char *module, void __iomem *reg) 1016df828598SMugunthan V N { 1017df828598SMugunthan V N unsigned long timeout = jiffies + HZ; 1018df828598SMugunthan V N 1019dda5f5feSGrygorii Strashko writel_relaxed(1, reg); 1020df828598SMugunthan V N do { 1021df828598SMugunthan V N cpu_relax(); 1022dda5f5feSGrygorii Strashko } while ((readl_relaxed(reg) & 1) && time_after(timeout, jiffies)); 1023df828598SMugunthan V N 1024dda5f5feSGrygorii Strashko WARN(readl_relaxed(reg) & 1, "failed to soft-reset %s\n", module); 1025df828598SMugunthan V N } 1026df828598SMugunthan V N 1027df828598SMugunthan V N static void cpsw_set_slave_mac(struct cpsw_slave *slave, 1028df828598SMugunthan V N struct cpsw_priv *priv) 1029df828598SMugunthan V N { 10309750a3adSRichard Cochran slave_write(slave, mac_hi(priv->mac_addr), SA_HI); 10319750a3adSRichard Cochran slave_write(slave, mac_lo(priv->mac_addr), SA_LO); 1032df828598SMugunthan V N } 1033df828598SMugunthan V N 103457d90148SIvan Khoronzhuk static bool cpsw_shp_is_off(struct cpsw_priv *priv) 103557d90148SIvan Khoronzhuk { 103657d90148SIvan Khoronzhuk struct cpsw_common *cpsw = priv->cpsw; 103757d90148SIvan Khoronzhuk struct cpsw_slave *slave; 103857d90148SIvan Khoronzhuk u32 shift, mask, val; 103957d90148SIvan Khoronzhuk 104057d90148SIvan Khoronzhuk val = readl_relaxed(&cpsw->regs->ptype); 104157d90148SIvan Khoronzhuk 104257d90148SIvan Khoronzhuk slave = &cpsw->slaves[cpsw_slave_index(cpsw, priv)]; 104357d90148SIvan Khoronzhuk shift = CPSW_FIFO_SHAPE_EN_SHIFT + 3 * slave->slave_num; 104457d90148SIvan Khoronzhuk mask = 7 << shift; 104557d90148SIvan Khoronzhuk val = val & mask; 104657d90148SIvan Khoronzhuk 104757d90148SIvan Khoronzhuk return !val; 104857d90148SIvan Khoronzhuk } 104957d90148SIvan Khoronzhuk 105057d90148SIvan Khoronzhuk static void cpsw_fifo_shp_on(struct cpsw_priv *priv, int fifo, int on) 105157d90148SIvan Khoronzhuk { 105257d90148SIvan Khoronzhuk struct cpsw_common *cpsw = priv->cpsw; 105357d90148SIvan Khoronzhuk struct cpsw_slave *slave; 105457d90148SIvan Khoronzhuk u32 shift, mask, val; 105557d90148SIvan Khoronzhuk 105657d90148SIvan Khoronzhuk val = readl_relaxed(&cpsw->regs->ptype); 105757d90148SIvan Khoronzhuk 105857d90148SIvan Khoronzhuk slave = &cpsw->slaves[cpsw_slave_index(cpsw, priv)]; 105957d90148SIvan Khoronzhuk shift = CPSW_FIFO_SHAPE_EN_SHIFT + 3 * slave->slave_num; 106057d90148SIvan Khoronzhuk mask = (1 << --fifo) << shift; 106157d90148SIvan Khoronzhuk val = on ? val | mask : val & ~mask; 106257d90148SIvan Khoronzhuk 106357d90148SIvan Khoronzhuk writel_relaxed(val, &cpsw->regs->ptype); 106457d90148SIvan Khoronzhuk } 106557d90148SIvan Khoronzhuk 1066df828598SMugunthan V N static void _cpsw_adjust_link(struct cpsw_slave *slave, 1067df828598SMugunthan V N struct cpsw_priv *priv, bool *link) 1068df828598SMugunthan V N { 1069df828598SMugunthan V N struct phy_device *phy = slave->phy; 1070df828598SMugunthan V N u32 mac_control = 0; 1071df828598SMugunthan V N u32 slave_port; 1072606f3993SIvan Khoronzhuk struct cpsw_common *cpsw = priv->cpsw; 1073df828598SMugunthan V N 1074df828598SMugunthan V N if (!phy) 1075df828598SMugunthan V N return; 1076df828598SMugunthan V N 10776f1f5836SIvan Khoronzhuk slave_port = cpsw_get_slave_port(slave->slave_num); 1078df828598SMugunthan V N 1079df828598SMugunthan V N if (phy->link) { 1080cfc08345SGrygorii Strashko mac_control = CPSW_SL_CTL_GMII_EN; 1081cfc08345SGrygorii Strashko 1082cfc08345SGrygorii Strashko if (phy->speed == 1000) 1083cfc08345SGrygorii Strashko mac_control |= CPSW_SL_CTL_GIG; 1084cfc08345SGrygorii Strashko if (phy->duplex) 1085cfc08345SGrygorii Strashko mac_control |= CPSW_SL_CTL_FULLDUPLEX; 1086cfc08345SGrygorii Strashko 1087cfc08345SGrygorii Strashko /* set speed_in input in case RMII mode is used in 100Mbps */ 1088cfc08345SGrygorii Strashko if (phy->speed == 100) 1089cfc08345SGrygorii Strashko mac_control |= CPSW_SL_CTL_IFCTL_A; 1090cfc08345SGrygorii Strashko /* in band mode only works in 10Mbps RGMII mode */ 1091cfc08345SGrygorii Strashko else if ((phy->speed == 10) && phy_interface_is_rgmii(phy)) 1092cfc08345SGrygorii Strashko mac_control |= CPSW_SL_CTL_EXT_EN; /* In Band mode */ 1093cfc08345SGrygorii Strashko 1094cfc08345SGrygorii Strashko if (priv->rx_pause) 1095cfc08345SGrygorii Strashko mac_control |= CPSW_SL_CTL_RX_FLOW_EN; 1096cfc08345SGrygorii Strashko 1097cfc08345SGrygorii Strashko if (priv->tx_pause) 1098cfc08345SGrygorii Strashko mac_control |= CPSW_SL_CTL_TX_FLOW_EN; 1099cfc08345SGrygorii Strashko 1100cfc08345SGrygorii Strashko if (mac_control != slave->mac_control) 1101cfc08345SGrygorii Strashko cpsw_sl_ctl_set(slave->mac_sl, mac_control); 1102df828598SMugunthan V N 1103df828598SMugunthan V N /* enable forwarding */ 11042a05a622SIvan Khoronzhuk cpsw_ale_control_set(cpsw->ale, slave_port, 1105df828598SMugunthan V N ALE_PORT_STATE, ALE_PORT_STATE_FORWARD); 1106df828598SMugunthan V N 1107df828598SMugunthan V N *link = true; 110857d90148SIvan Khoronzhuk 110957d90148SIvan Khoronzhuk if (priv->shp_cfg_speed && 111057d90148SIvan Khoronzhuk priv->shp_cfg_speed != slave->phy->speed && 111157d90148SIvan Khoronzhuk !cpsw_shp_is_off(priv)) 111257d90148SIvan Khoronzhuk dev_warn(priv->dev, 111357d90148SIvan Khoronzhuk "Speed was changed, CBS shaper speeds are changed!"); 1114df828598SMugunthan V N } else { 1115df828598SMugunthan V N mac_control = 0; 1116df828598SMugunthan V N /* disable forwarding */ 11172a05a622SIvan Khoronzhuk cpsw_ale_control_set(cpsw->ale, slave_port, 1118df828598SMugunthan V N ALE_PORT_STATE, ALE_PORT_STATE_DISABLE); 1119cfc08345SGrygorii Strashko 1120cfc08345SGrygorii Strashko cpsw_sl_wait_for_idle(slave->mac_sl, 100); 1121cfc08345SGrygorii Strashko 1122cfc08345SGrygorii Strashko cpsw_sl_ctl_reset(slave->mac_sl); 1123df828598SMugunthan V N } 1124df828598SMugunthan V N 1125cfc08345SGrygorii Strashko if (mac_control != slave->mac_control) 1126df828598SMugunthan V N phy_print_status(phy); 1127df828598SMugunthan V N 1128df828598SMugunthan V N slave->mac_control = mac_control; 1129df828598SMugunthan V N } 1130df828598SMugunthan V N 11310be01b8eSIvan Khoronzhuk static int cpsw_get_common_speed(struct cpsw_common *cpsw) 11320be01b8eSIvan Khoronzhuk { 11330be01b8eSIvan Khoronzhuk int i, speed; 11340be01b8eSIvan Khoronzhuk 11350be01b8eSIvan Khoronzhuk for (i = 0, speed = 0; i < cpsw->data.slaves; i++) 11360be01b8eSIvan Khoronzhuk if (cpsw->slaves[i].phy && cpsw->slaves[i].phy->link) 11370be01b8eSIvan Khoronzhuk speed += cpsw->slaves[i].phy->speed; 11380be01b8eSIvan Khoronzhuk 11390be01b8eSIvan Khoronzhuk return speed; 11400be01b8eSIvan Khoronzhuk } 11410be01b8eSIvan Khoronzhuk 11420be01b8eSIvan Khoronzhuk static int cpsw_need_resplit(struct cpsw_common *cpsw) 11430be01b8eSIvan Khoronzhuk { 11440be01b8eSIvan Khoronzhuk int i, rlim_ch_num; 11450be01b8eSIvan Khoronzhuk int speed, ch_rate; 11460be01b8eSIvan Khoronzhuk 11470be01b8eSIvan Khoronzhuk /* re-split resources only in case speed was changed */ 11480be01b8eSIvan Khoronzhuk speed = cpsw_get_common_speed(cpsw); 11490be01b8eSIvan Khoronzhuk if (speed == cpsw->speed || !speed) 11500be01b8eSIvan Khoronzhuk return 0; 11510be01b8eSIvan Khoronzhuk 11520be01b8eSIvan Khoronzhuk cpsw->speed = speed; 11530be01b8eSIvan Khoronzhuk 11540be01b8eSIvan Khoronzhuk for (i = 0, rlim_ch_num = 0; i < cpsw->tx_ch_num; i++) { 11550be01b8eSIvan Khoronzhuk ch_rate = cpdma_chan_get_rate(cpsw->txv[i].ch); 11560be01b8eSIvan Khoronzhuk if (!ch_rate) 11570be01b8eSIvan Khoronzhuk break; 11580be01b8eSIvan Khoronzhuk 11590be01b8eSIvan Khoronzhuk rlim_ch_num++; 11600be01b8eSIvan Khoronzhuk } 11610be01b8eSIvan Khoronzhuk 11620be01b8eSIvan Khoronzhuk /* cases not dependent on speed */ 11630be01b8eSIvan Khoronzhuk if (!rlim_ch_num || rlim_ch_num == cpsw->tx_ch_num) 11640be01b8eSIvan Khoronzhuk return 0; 11650be01b8eSIvan Khoronzhuk 11660be01b8eSIvan Khoronzhuk return 1; 11670be01b8eSIvan Khoronzhuk } 11680be01b8eSIvan Khoronzhuk 1169df828598SMugunthan V N static void cpsw_adjust_link(struct net_device *ndev) 1170df828598SMugunthan V N { 1171df828598SMugunthan V N struct cpsw_priv *priv = netdev_priv(ndev); 11720be01b8eSIvan Khoronzhuk struct cpsw_common *cpsw = priv->cpsw; 1173df828598SMugunthan V N bool link = false; 1174df828598SMugunthan V N 1175df828598SMugunthan V N for_each_slave(priv, _cpsw_adjust_link, priv, &link); 1176df828598SMugunthan V N 1177df828598SMugunthan V N if (link) { 11780be01b8eSIvan Khoronzhuk if (cpsw_need_resplit(cpsw)) 11799763a891SGrygorii Strashko cpsw_split_res(cpsw); 11800be01b8eSIvan Khoronzhuk 1181df828598SMugunthan V N netif_carrier_on(ndev); 1182df828598SMugunthan V N if (netif_running(ndev)) 1183e05107e6SIvan Khoronzhuk netif_tx_wake_all_queues(ndev); 1184df828598SMugunthan V N } else { 1185df828598SMugunthan V N netif_carrier_off(ndev); 1186e05107e6SIvan Khoronzhuk netif_tx_stop_all_queues(ndev); 1187df828598SMugunthan V N } 1188df828598SMugunthan V N } 1189df828598SMugunthan V N 1190d9ba8f9eSMugunthan V N static inline void cpsw_add_dual_emac_def_ale_entries( 1191d9ba8f9eSMugunthan V N struct cpsw_priv *priv, struct cpsw_slave *slave, 1192d9ba8f9eSMugunthan V N u32 slave_port) 1193d9ba8f9eSMugunthan V N { 11942a05a622SIvan Khoronzhuk struct cpsw_common *cpsw = priv->cpsw; 119571a2cbb7SGrygorii Strashko u32 port_mask = 1 << slave_port | ALE_PORT_HOST; 1196d9ba8f9eSMugunthan V N 11972a05a622SIvan Khoronzhuk if (cpsw->version == CPSW_VERSION_1) 1198d9ba8f9eSMugunthan V N slave_write(slave, slave->port_vlan, CPSW1_PORT_VLAN); 1199d9ba8f9eSMugunthan V N else 1200d9ba8f9eSMugunthan V N slave_write(slave, slave->port_vlan, CPSW2_PORT_VLAN); 12012a05a622SIvan Khoronzhuk cpsw_ale_add_vlan(cpsw->ale, slave->port_vlan, port_mask, 1202d9ba8f9eSMugunthan V N port_mask, port_mask, 0); 12032a05a622SIvan Khoronzhuk cpsw_ale_add_mcast(cpsw->ale, priv->ndev->broadcast, 12045b3a5a14SIvan Khoronzhuk ALE_PORT_HOST, ALE_VLAN, slave->port_vlan, 0); 12052a05a622SIvan Khoronzhuk cpsw_ale_add_ucast(cpsw->ale, priv->mac_addr, 12062a05a622SIvan Khoronzhuk HOST_PORT_NUM, ALE_VLAN | 12072a05a622SIvan Khoronzhuk ALE_SECURE, slave->port_vlan); 12085e5add17SGrygorii Strashko cpsw_ale_control_set(cpsw->ale, slave_port, 12095e5add17SGrygorii Strashko ALE_PORT_DROP_UNKNOWN_VLAN, 1); 1210d9ba8f9eSMugunthan V N } 1211d9ba8f9eSMugunthan V N 12121e7a2e21SDaniel Mack static void cpsw_slave_open(struct cpsw_slave *slave, struct cpsw_priv *priv) 12131e7a2e21SDaniel Mack { 1214df828598SMugunthan V N u32 slave_port; 121530c57f07SSekhar Nori struct phy_device *phy; 1216649a1688SIvan Khoronzhuk struct cpsw_common *cpsw = priv->cpsw; 1217df828598SMugunthan V N 1218cfc08345SGrygorii Strashko cpsw_sl_reset(slave->mac_sl, 100); 1219cfc08345SGrygorii Strashko cpsw_sl_ctl_reset(slave->mac_sl); 1220df828598SMugunthan V N 1221df828598SMugunthan V N /* setup priority mapping */ 1222cfc08345SGrygorii Strashko cpsw_sl_reg_write(slave->mac_sl, CPSW_SL_RX_PRI_MAP, 1223cfc08345SGrygorii Strashko RX_PRIORITY_MAPPING); 12249750a3adSRichard Cochran 12252a05a622SIvan Khoronzhuk switch (cpsw->version) { 12269750a3adSRichard Cochran case CPSW_VERSION_1: 12279750a3adSRichard Cochran slave_write(slave, TX_PRIORITY_MAPPING, CPSW1_TX_PRI_MAP); 122848f5bcccSGrygorii Strashko /* Increase RX FIFO size to 5 for supporting fullduplex 122948f5bcccSGrygorii Strashko * flow control mode 123048f5bcccSGrygorii Strashko */ 123148f5bcccSGrygorii Strashko slave_write(slave, 123248f5bcccSGrygorii Strashko (CPSW_MAX_BLKS_TX << CPSW_MAX_BLKS_TX_SHIFT) | 123348f5bcccSGrygorii Strashko CPSW_MAX_BLKS_RX, CPSW1_MAX_BLKS); 12349750a3adSRichard Cochran break; 12359750a3adSRichard Cochran case CPSW_VERSION_2: 1236c193f365SMugunthan V N case CPSW_VERSION_3: 1237926489beSMugunthan V N case CPSW_VERSION_4: 12389750a3adSRichard Cochran slave_write(slave, TX_PRIORITY_MAPPING, CPSW2_TX_PRI_MAP); 123948f5bcccSGrygorii Strashko /* Increase RX FIFO size to 5 for supporting fullduplex 124048f5bcccSGrygorii Strashko * flow control mode 124148f5bcccSGrygorii Strashko */ 124248f5bcccSGrygorii Strashko slave_write(slave, 124348f5bcccSGrygorii Strashko (CPSW_MAX_BLKS_TX << CPSW_MAX_BLKS_TX_SHIFT) | 124448f5bcccSGrygorii Strashko CPSW_MAX_BLKS_RX, CPSW2_MAX_BLKS); 12459750a3adSRichard Cochran break; 12469750a3adSRichard Cochran } 1247df828598SMugunthan V N 1248df828598SMugunthan V N /* setup max packet size, and mac address */ 1249cfc08345SGrygorii Strashko cpsw_sl_reg_write(slave->mac_sl, CPSW_SL_RX_MAXLEN, 1250cfc08345SGrygorii Strashko cpsw->rx_packet_max); 1251df828598SMugunthan V N cpsw_set_slave_mac(slave, priv); 1252df828598SMugunthan V N 1253df828598SMugunthan V N slave->mac_control = 0; /* no link yet */ 1254df828598SMugunthan V N 12556f1f5836SIvan Khoronzhuk slave_port = cpsw_get_slave_port(slave->slave_num); 1256df828598SMugunthan V N 1257606f3993SIvan Khoronzhuk if (cpsw->data.dual_emac) 1258d9ba8f9eSMugunthan V N cpsw_add_dual_emac_def_ale_entries(priv, slave, slave_port); 1259d9ba8f9eSMugunthan V N else 12602a05a622SIvan Khoronzhuk cpsw_ale_add_mcast(cpsw->ale, priv->ndev->broadcast, 1261e11b220fSMugunthan V N 1 << slave_port, 0, 0, ALE_MCAST_FWD_2); 1262df828598SMugunthan V N 1263d733f754SDavid Rivshin if (slave->data->phy_node) { 126430c57f07SSekhar Nori phy = of_phy_connect(priv->ndev, slave->data->phy_node, 12659e42f715SHeiko Schocher &cpsw_adjust_link, 0, slave->data->phy_if); 126630c57f07SSekhar Nori if (!phy) { 1267f7ce9103SRob Herring dev_err(priv->dev, "phy \"%pOF\" not found on slave %d\n", 1268f7ce9103SRob Herring slave->data->phy_node, 1269d733f754SDavid Rivshin slave->slave_num); 1270d733f754SDavid Rivshin return; 1271d733f754SDavid Rivshin } 1272d733f754SDavid Rivshin } else { 127330c57f07SSekhar Nori phy = phy_connect(priv->ndev, slave->data->phy_id, 1274f9a8f83bSFlorian Fainelli &cpsw_adjust_link, slave->data->phy_if); 127530c57f07SSekhar Nori if (IS_ERR(phy)) { 1276d733f754SDavid Rivshin dev_err(priv->dev, 1277d733f754SDavid Rivshin "phy \"%s\" not found on slave %d, err %ld\n", 1278d733f754SDavid Rivshin slave->data->phy_id, slave->slave_num, 127930c57f07SSekhar Nori PTR_ERR(phy)); 1280d733f754SDavid Rivshin return; 1281d733f754SDavid Rivshin } 1282d733f754SDavid Rivshin } 1283d733f754SDavid Rivshin 128430c57f07SSekhar Nori slave->phy = phy; 128530c57f07SSekhar Nori 12862220943aSAndrew Lunn phy_attached_info(slave->phy); 12872220943aSAndrew Lunn 1288df828598SMugunthan V N phy_start(slave->phy); 1289388367a5SMugunthan V N 1290388367a5SMugunthan V N /* Configure GMII_SEL register */ 12913ff18849SGrygorii Strashko if (!IS_ERR(slave->data->ifphy)) 12923ff18849SGrygorii Strashko phy_set_mode_ext(slave->data->ifphy, PHY_MODE_ETHERNET, 12933ff18849SGrygorii Strashko slave->data->phy_if); 12943ff18849SGrygorii Strashko else 12953ff18849SGrygorii Strashko cpsw_phy_sel(cpsw->dev, slave->phy->interface, 12963ff18849SGrygorii Strashko slave->slave_num); 1297df828598SMugunthan V N } 1298df828598SMugunthan V N 12993b72c2feSMugunthan V N static inline void cpsw_add_default_vlan(struct cpsw_priv *priv) 13003b72c2feSMugunthan V N { 1301606f3993SIvan Khoronzhuk struct cpsw_common *cpsw = priv->cpsw; 1302606f3993SIvan Khoronzhuk const int vlan = cpsw->data.default_vlan; 13033b72c2feSMugunthan V N u32 reg; 13043b72c2feSMugunthan V N int i; 13051e5c4bc4SLennart Sorensen int unreg_mcast_mask; 13063b72c2feSMugunthan V N 13072a05a622SIvan Khoronzhuk reg = (cpsw->version == CPSW_VERSION_1) ? CPSW1_PORT_VLAN : 13083b72c2feSMugunthan V N CPSW2_PORT_VLAN; 13093b72c2feSMugunthan V N 13105d8d0d4dSIvan Khoronzhuk writel(vlan, &cpsw->host_port_regs->port_vlan); 13113b72c2feSMugunthan V N 1312606f3993SIvan Khoronzhuk for (i = 0; i < cpsw->data.slaves; i++) 1313606f3993SIvan Khoronzhuk slave_write(cpsw->slaves + i, vlan, reg); 13143b72c2feSMugunthan V N 13151e5c4bc4SLennart Sorensen if (priv->ndev->flags & IFF_ALLMULTI) 13161e5c4bc4SLennart Sorensen unreg_mcast_mask = ALE_ALL_PORTS; 13171e5c4bc4SLennart Sorensen else 13181e5c4bc4SLennart Sorensen unreg_mcast_mask = ALE_PORT_1 | ALE_PORT_2; 13191e5c4bc4SLennart Sorensen 13202a05a622SIvan Khoronzhuk cpsw_ale_add_vlan(cpsw->ale, vlan, ALE_ALL_PORTS, 132161f1cef9SGrygorii Strashko ALE_ALL_PORTS, ALE_ALL_PORTS, 132261f1cef9SGrygorii Strashko unreg_mcast_mask); 13233b72c2feSMugunthan V N } 13243b72c2feSMugunthan V N 1325df828598SMugunthan V N static void cpsw_init_host_port(struct cpsw_priv *priv) 1326df828598SMugunthan V N { 1327d9ba8f9eSMugunthan V N u32 fifo_mode; 13285d8d0d4dSIvan Khoronzhuk u32 control_reg; 13295d8d0d4dSIvan Khoronzhuk struct cpsw_common *cpsw = priv->cpsw; 13303b72c2feSMugunthan V N 1331df828598SMugunthan V N /* soft reset the controller and initialize ale */ 13325d8d0d4dSIvan Khoronzhuk soft_reset("cpsw", &cpsw->regs->soft_reset); 13332a05a622SIvan Khoronzhuk cpsw_ale_start(cpsw->ale); 1334df828598SMugunthan V N 1335df828598SMugunthan V N /* switch to vlan unaware mode */ 13362a05a622SIvan Khoronzhuk cpsw_ale_control_set(cpsw->ale, HOST_PORT_NUM, ALE_VLAN_AWARE, 13373b72c2feSMugunthan V N CPSW_ALE_VLAN_AWARE); 13385d8d0d4dSIvan Khoronzhuk control_reg = readl(&cpsw->regs->control); 1339a3a41d2fSGrygorii Strashko control_reg |= CPSW_VLAN_AWARE | CPSW_RX_VLAN_ENCAP; 13405d8d0d4dSIvan Khoronzhuk writel(control_reg, &cpsw->regs->control); 1341606f3993SIvan Khoronzhuk fifo_mode = (cpsw->data.dual_emac) ? CPSW_FIFO_DUAL_MAC_MODE : 1342d9ba8f9eSMugunthan V N CPSW_FIFO_NORMAL_MODE; 13435d8d0d4dSIvan Khoronzhuk writel(fifo_mode, &cpsw->host_port_regs->tx_in_ctl); 1344df828598SMugunthan V N 1345df828598SMugunthan V N /* setup host port priority mapping */ 1346dda5f5feSGrygorii Strashko writel_relaxed(CPDMA_TX_PRIORITY_MAP, 13475d8d0d4dSIvan Khoronzhuk &cpsw->host_port_regs->cpdma_tx_pri_map); 1348dda5f5feSGrygorii Strashko writel_relaxed(0, &cpsw->host_port_regs->cpdma_rx_chan_map); 1349df828598SMugunthan V N 13502a05a622SIvan Khoronzhuk cpsw_ale_control_set(cpsw->ale, HOST_PORT_NUM, 1351df828598SMugunthan V N ALE_PORT_STATE, ALE_PORT_STATE_FORWARD); 1352df828598SMugunthan V N 1353606f3993SIvan Khoronzhuk if (!cpsw->data.dual_emac) { 13542a05a622SIvan Khoronzhuk cpsw_ale_add_ucast(cpsw->ale, priv->mac_addr, HOST_PORT_NUM, 1355d9ba8f9eSMugunthan V N 0, 0); 13562a05a622SIvan Khoronzhuk cpsw_ale_add_mcast(cpsw->ale, priv->ndev->broadcast, 135771a2cbb7SGrygorii Strashko ALE_PORT_HOST, 0, 0, ALE_MCAST_FWD_2); 1358df828598SMugunthan V N } 1359d9ba8f9eSMugunthan V N } 1360df828598SMugunthan V N 1361c24eef28SGrygorii Strashko int cpsw_fill_rx_channels(struct cpsw_priv *priv) 13623802dce1SIvan Khoronzhuk { 13633802dce1SIvan Khoronzhuk struct cpsw_common *cpsw = priv->cpsw; 13649ed4050cSIvan Khoronzhuk struct cpsw_meta_xdp *xmeta; 13659ed4050cSIvan Khoronzhuk struct page_pool *pool; 13669ed4050cSIvan Khoronzhuk struct page *page; 13673802dce1SIvan Khoronzhuk int ch_buf_num; 1368e05107e6SIvan Khoronzhuk int ch, i, ret; 13699ed4050cSIvan Khoronzhuk dma_addr_t dma; 13703802dce1SIvan Khoronzhuk 1371e05107e6SIvan Khoronzhuk for (ch = 0; ch < cpsw->rx_ch_num; ch++) { 13729ed4050cSIvan Khoronzhuk pool = cpsw->page_pool[ch]; 13738feb0a19SIvan Khoronzhuk ch_buf_num = cpdma_chan_get_rx_buf_num(cpsw->rxv[ch].ch); 13743802dce1SIvan Khoronzhuk for (i = 0; i < ch_buf_num; i++) { 13759ed4050cSIvan Khoronzhuk page = page_pool_dev_alloc_pages(pool); 13769ed4050cSIvan Khoronzhuk if (!page) { 13779ed4050cSIvan Khoronzhuk cpsw_err(priv, ifup, "allocate rx page err\n"); 13783802dce1SIvan Khoronzhuk return -ENOMEM; 13793802dce1SIvan Khoronzhuk } 13803802dce1SIvan Khoronzhuk 13819ed4050cSIvan Khoronzhuk xmeta = page_address(page) + CPSW_XMETA_OFFSET; 13829ed4050cSIvan Khoronzhuk xmeta->ndev = priv->ndev; 13839ed4050cSIvan Khoronzhuk xmeta->ch = ch; 13849ed4050cSIvan Khoronzhuk 13859ed4050cSIvan Khoronzhuk dma = page_pool_get_dma_addr(page) + CPSW_HEADROOM; 13869ed4050cSIvan Khoronzhuk ret = cpdma_chan_idle_submit_mapped(cpsw->rxv[ch].ch, 13879ed4050cSIvan Khoronzhuk page, dma, 13889ed4050cSIvan Khoronzhuk cpsw->rx_packet_max, 13899ed4050cSIvan Khoronzhuk 0); 13903802dce1SIvan Khoronzhuk if (ret < 0) { 13913802dce1SIvan Khoronzhuk cpsw_err(priv, ifup, 13929ed4050cSIvan Khoronzhuk "cannot submit page to channel %d rx, error %d\n", 1393e05107e6SIvan Khoronzhuk ch, ret); 13949ed4050cSIvan Khoronzhuk page_pool_recycle_direct(pool, page); 13953802dce1SIvan Khoronzhuk return ret; 13963802dce1SIvan Khoronzhuk } 13973802dce1SIvan Khoronzhuk } 13983802dce1SIvan Khoronzhuk 1399e05107e6SIvan Khoronzhuk cpsw_info(priv, ifup, "ch %d rx, submitted %d descriptors\n", 1400e05107e6SIvan Khoronzhuk ch, ch_buf_num); 1401e05107e6SIvan Khoronzhuk } 14023802dce1SIvan Khoronzhuk 1403e05107e6SIvan Khoronzhuk return 0; 14043802dce1SIvan Khoronzhuk } 14053802dce1SIvan Khoronzhuk 14062a05a622SIvan Khoronzhuk static void cpsw_slave_stop(struct cpsw_slave *slave, struct cpsw_common *cpsw) 1407aacebbf8SSebastian Siewior { 14083995d265SSchuyler Patton u32 slave_port; 14093995d265SSchuyler Patton 14106f1f5836SIvan Khoronzhuk slave_port = cpsw_get_slave_port(slave->slave_num); 14113995d265SSchuyler Patton 1412aacebbf8SSebastian Siewior if (!slave->phy) 1413aacebbf8SSebastian Siewior return; 1414aacebbf8SSebastian Siewior phy_stop(slave->phy); 1415aacebbf8SSebastian Siewior phy_disconnect(slave->phy); 1416aacebbf8SSebastian Siewior slave->phy = NULL; 14172a05a622SIvan Khoronzhuk cpsw_ale_control_set(cpsw->ale, slave_port, 14183995d265SSchuyler Patton ALE_PORT_STATE, ALE_PORT_STATE_DISABLE); 1419cfc08345SGrygorii Strashko cpsw_sl_reset(slave->mac_sl, 100); 1420cfc08345SGrygorii Strashko cpsw_sl_ctl_reset(slave->mac_sl); 1421aacebbf8SSebastian Siewior } 1422aacebbf8SSebastian Siewior 14237929a668SIvan Khoronzhuk static int cpsw_tc_to_fifo(int tc, int num_tc) 14247929a668SIvan Khoronzhuk { 14257929a668SIvan Khoronzhuk if (tc == num_tc - 1) 14267929a668SIvan Khoronzhuk return 0; 14277929a668SIvan Khoronzhuk 14287929a668SIvan Khoronzhuk return CPSW_FIFO_SHAPERS_NUM - tc; 14297929a668SIvan Khoronzhuk } 14307929a668SIvan Khoronzhuk 143157d90148SIvan Khoronzhuk static int cpsw_set_fifo_bw(struct cpsw_priv *priv, int fifo, int bw) 143257d90148SIvan Khoronzhuk { 143357d90148SIvan Khoronzhuk struct cpsw_common *cpsw = priv->cpsw; 143457d90148SIvan Khoronzhuk u32 val = 0, send_pct, shift; 143557d90148SIvan Khoronzhuk struct cpsw_slave *slave; 143657d90148SIvan Khoronzhuk int pct = 0, i; 143757d90148SIvan Khoronzhuk 143857d90148SIvan Khoronzhuk if (bw > priv->shp_cfg_speed * 1000) 143957d90148SIvan Khoronzhuk goto err; 144057d90148SIvan Khoronzhuk 144157d90148SIvan Khoronzhuk /* shaping has to stay enabled for highest fifos linearly 144257d90148SIvan Khoronzhuk * and fifo bw no more then interface can allow 144357d90148SIvan Khoronzhuk */ 144457d90148SIvan Khoronzhuk slave = &cpsw->slaves[cpsw_slave_index(cpsw, priv)]; 144557d90148SIvan Khoronzhuk send_pct = slave_read(slave, SEND_PERCENT); 144657d90148SIvan Khoronzhuk for (i = CPSW_FIFO_SHAPERS_NUM; i > 0; i--) { 144757d90148SIvan Khoronzhuk if (!bw) { 144857d90148SIvan Khoronzhuk if (i >= fifo || !priv->fifo_bw[i]) 144957d90148SIvan Khoronzhuk continue; 145057d90148SIvan Khoronzhuk 145157d90148SIvan Khoronzhuk dev_warn(priv->dev, "Prev FIFO%d is shaped", i); 145257d90148SIvan Khoronzhuk continue; 145357d90148SIvan Khoronzhuk } 145457d90148SIvan Khoronzhuk 145557d90148SIvan Khoronzhuk if (!priv->fifo_bw[i] && i > fifo) { 145657d90148SIvan Khoronzhuk dev_err(priv->dev, "Upper FIFO%d is not shaped", i); 145757d90148SIvan Khoronzhuk return -EINVAL; 145857d90148SIvan Khoronzhuk } 145957d90148SIvan Khoronzhuk 146057d90148SIvan Khoronzhuk shift = (i - 1) * 8; 146157d90148SIvan Khoronzhuk if (i == fifo) { 146257d90148SIvan Khoronzhuk send_pct &= ~(CPSW_PCT_MASK << shift); 146357d90148SIvan Khoronzhuk val = DIV_ROUND_UP(bw, priv->shp_cfg_speed * 10); 146457d90148SIvan Khoronzhuk if (!val) 146557d90148SIvan Khoronzhuk val = 1; 146657d90148SIvan Khoronzhuk 146757d90148SIvan Khoronzhuk send_pct |= val << shift; 146857d90148SIvan Khoronzhuk pct += val; 146957d90148SIvan Khoronzhuk continue; 147057d90148SIvan Khoronzhuk } 147157d90148SIvan Khoronzhuk 147257d90148SIvan Khoronzhuk if (priv->fifo_bw[i]) 147357d90148SIvan Khoronzhuk pct += (send_pct >> shift) & CPSW_PCT_MASK; 147457d90148SIvan Khoronzhuk } 147557d90148SIvan Khoronzhuk 147657d90148SIvan Khoronzhuk if (pct >= 100) 147757d90148SIvan Khoronzhuk goto err; 147857d90148SIvan Khoronzhuk 147957d90148SIvan Khoronzhuk slave_write(slave, send_pct, SEND_PERCENT); 148057d90148SIvan Khoronzhuk priv->fifo_bw[fifo] = bw; 148157d90148SIvan Khoronzhuk 148257d90148SIvan Khoronzhuk dev_warn(priv->dev, "set FIFO%d bw = %d\n", fifo, 148357d90148SIvan Khoronzhuk DIV_ROUND_CLOSEST(val * priv->shp_cfg_speed, 100)); 148457d90148SIvan Khoronzhuk 148557d90148SIvan Khoronzhuk return 0; 148657d90148SIvan Khoronzhuk err: 148757d90148SIvan Khoronzhuk dev_err(priv->dev, "Bandwidth doesn't fit in tc configuration"); 148857d90148SIvan Khoronzhuk return -EINVAL; 148957d90148SIvan Khoronzhuk } 149057d90148SIvan Khoronzhuk 149157d90148SIvan Khoronzhuk static int cpsw_set_fifo_rlimit(struct cpsw_priv *priv, int fifo, int bw) 149257d90148SIvan Khoronzhuk { 149357d90148SIvan Khoronzhuk struct cpsw_common *cpsw = priv->cpsw; 149457d90148SIvan Khoronzhuk struct cpsw_slave *slave; 149557d90148SIvan Khoronzhuk u32 tx_in_ctl_rg, val; 149657d90148SIvan Khoronzhuk int ret; 149757d90148SIvan Khoronzhuk 149857d90148SIvan Khoronzhuk ret = cpsw_set_fifo_bw(priv, fifo, bw); 149957d90148SIvan Khoronzhuk if (ret) 150057d90148SIvan Khoronzhuk return ret; 150157d90148SIvan Khoronzhuk 150257d90148SIvan Khoronzhuk slave = &cpsw->slaves[cpsw_slave_index(cpsw, priv)]; 150357d90148SIvan Khoronzhuk tx_in_ctl_rg = cpsw->version == CPSW_VERSION_1 ? 150457d90148SIvan Khoronzhuk CPSW1_TX_IN_CTL : CPSW2_TX_IN_CTL; 150557d90148SIvan Khoronzhuk 150657d90148SIvan Khoronzhuk if (!bw) 150757d90148SIvan Khoronzhuk cpsw_fifo_shp_on(priv, fifo, bw); 150857d90148SIvan Khoronzhuk 150957d90148SIvan Khoronzhuk val = slave_read(slave, tx_in_ctl_rg); 151057d90148SIvan Khoronzhuk if (cpsw_shp_is_off(priv)) { 151157d90148SIvan Khoronzhuk /* disable FIFOs rate limited queues */ 151257d90148SIvan Khoronzhuk val &= ~(0xf << CPSW_FIFO_RATE_EN_SHIFT); 151357d90148SIvan Khoronzhuk 151457d90148SIvan Khoronzhuk /* set type of FIFO queues to normal priority mode */ 151557d90148SIvan Khoronzhuk val &= ~(3 << CPSW_FIFO_QUEUE_TYPE_SHIFT); 151657d90148SIvan Khoronzhuk 151757d90148SIvan Khoronzhuk /* set type of FIFO queues to be rate limited */ 151857d90148SIvan Khoronzhuk if (bw) 151957d90148SIvan Khoronzhuk val |= 2 << CPSW_FIFO_QUEUE_TYPE_SHIFT; 152057d90148SIvan Khoronzhuk else 152157d90148SIvan Khoronzhuk priv->shp_cfg_speed = 0; 152257d90148SIvan Khoronzhuk } 152357d90148SIvan Khoronzhuk 152457d90148SIvan Khoronzhuk /* toggle a FIFO rate limited queue */ 152557d90148SIvan Khoronzhuk if (bw) 152657d90148SIvan Khoronzhuk val |= BIT(fifo + CPSW_FIFO_RATE_EN_SHIFT); 152757d90148SIvan Khoronzhuk else 152857d90148SIvan Khoronzhuk val &= ~BIT(fifo + CPSW_FIFO_RATE_EN_SHIFT); 152957d90148SIvan Khoronzhuk slave_write(slave, val, tx_in_ctl_rg); 153057d90148SIvan Khoronzhuk 153157d90148SIvan Khoronzhuk /* FIFO transmit shape enable */ 153257d90148SIvan Khoronzhuk cpsw_fifo_shp_on(priv, fifo, bw); 153357d90148SIvan Khoronzhuk return 0; 153457d90148SIvan Khoronzhuk } 153557d90148SIvan Khoronzhuk 153657d90148SIvan Khoronzhuk /* Defaults: 153757d90148SIvan Khoronzhuk * class A - prio 3 153857d90148SIvan Khoronzhuk * class B - prio 2 153957d90148SIvan Khoronzhuk * shaping for class A should be set first 154057d90148SIvan Khoronzhuk */ 154157d90148SIvan Khoronzhuk static int cpsw_set_cbs(struct net_device *ndev, 154257d90148SIvan Khoronzhuk struct tc_cbs_qopt_offload *qopt) 154357d90148SIvan Khoronzhuk { 154457d90148SIvan Khoronzhuk struct cpsw_priv *priv = netdev_priv(ndev); 154557d90148SIvan Khoronzhuk struct cpsw_common *cpsw = priv->cpsw; 154657d90148SIvan Khoronzhuk struct cpsw_slave *slave; 154757d90148SIvan Khoronzhuk int prev_speed = 0; 154857d90148SIvan Khoronzhuk int tc, ret, fifo; 154957d90148SIvan Khoronzhuk u32 bw = 0; 155057d90148SIvan Khoronzhuk 155157d90148SIvan Khoronzhuk tc = netdev_txq_to_tc(priv->ndev, qopt->queue); 155257d90148SIvan Khoronzhuk 155357d90148SIvan Khoronzhuk /* enable channels in backward order, as highest FIFOs must be rate 155457d90148SIvan Khoronzhuk * limited first and for compliance with CPDMA rate limited channels 155557d90148SIvan Khoronzhuk * that also used in bacward order. FIFO0 cannot be rate limited. 155657d90148SIvan Khoronzhuk */ 155757d90148SIvan Khoronzhuk fifo = cpsw_tc_to_fifo(tc, ndev->num_tc); 155857d90148SIvan Khoronzhuk if (!fifo) { 155957d90148SIvan Khoronzhuk dev_err(priv->dev, "Last tc%d can't be rate limited", tc); 156057d90148SIvan Khoronzhuk return -EINVAL; 156157d90148SIvan Khoronzhuk } 156257d90148SIvan Khoronzhuk 156357d90148SIvan Khoronzhuk /* do nothing, it's disabled anyway */ 156457d90148SIvan Khoronzhuk if (!qopt->enable && !priv->fifo_bw[fifo]) 156557d90148SIvan Khoronzhuk return 0; 156657d90148SIvan Khoronzhuk 156757d90148SIvan Khoronzhuk /* shapers can be set if link speed is known */ 156857d90148SIvan Khoronzhuk slave = &cpsw->slaves[cpsw_slave_index(cpsw, priv)]; 156957d90148SIvan Khoronzhuk if (slave->phy && slave->phy->link) { 157057d90148SIvan Khoronzhuk if (priv->shp_cfg_speed && 157157d90148SIvan Khoronzhuk priv->shp_cfg_speed != slave->phy->speed) 157257d90148SIvan Khoronzhuk prev_speed = priv->shp_cfg_speed; 157357d90148SIvan Khoronzhuk 157457d90148SIvan Khoronzhuk priv->shp_cfg_speed = slave->phy->speed; 157557d90148SIvan Khoronzhuk } 157657d90148SIvan Khoronzhuk 157757d90148SIvan Khoronzhuk if (!priv->shp_cfg_speed) { 157857d90148SIvan Khoronzhuk dev_err(priv->dev, "Link speed is not known"); 157957d90148SIvan Khoronzhuk return -1; 158057d90148SIvan Khoronzhuk } 158157d90148SIvan Khoronzhuk 158257d90148SIvan Khoronzhuk ret = pm_runtime_get_sync(cpsw->dev); 158357d90148SIvan Khoronzhuk if (ret < 0) { 158457d90148SIvan Khoronzhuk pm_runtime_put_noidle(cpsw->dev); 158557d90148SIvan Khoronzhuk return ret; 158657d90148SIvan Khoronzhuk } 158757d90148SIvan Khoronzhuk 158857d90148SIvan Khoronzhuk bw = qopt->enable ? qopt->idleslope : 0; 158957d90148SIvan Khoronzhuk ret = cpsw_set_fifo_rlimit(priv, fifo, bw); 159057d90148SIvan Khoronzhuk if (ret) { 159157d90148SIvan Khoronzhuk priv->shp_cfg_speed = prev_speed; 159257d90148SIvan Khoronzhuk prev_speed = 0; 159357d90148SIvan Khoronzhuk } 159457d90148SIvan Khoronzhuk 159557d90148SIvan Khoronzhuk if (bw && prev_speed) 159657d90148SIvan Khoronzhuk dev_warn(priv->dev, 159757d90148SIvan Khoronzhuk "Speed was changed, CBS shaper speeds are changed!"); 159857d90148SIvan Khoronzhuk 159957d90148SIvan Khoronzhuk pm_runtime_put_sync(cpsw->dev); 160057d90148SIvan Khoronzhuk return ret; 160157d90148SIvan Khoronzhuk } 160257d90148SIvan Khoronzhuk 16034b4255edSIvan Khoronzhuk static void cpsw_cbs_resume(struct cpsw_slave *slave, struct cpsw_priv *priv) 16044b4255edSIvan Khoronzhuk { 16054b4255edSIvan Khoronzhuk int fifo, bw; 16064b4255edSIvan Khoronzhuk 16074b4255edSIvan Khoronzhuk for (fifo = CPSW_FIFO_SHAPERS_NUM; fifo > 0; fifo--) { 16084b4255edSIvan Khoronzhuk bw = priv->fifo_bw[fifo]; 16094b4255edSIvan Khoronzhuk if (!bw) 16104b4255edSIvan Khoronzhuk continue; 16114b4255edSIvan Khoronzhuk 16124b4255edSIvan Khoronzhuk cpsw_set_fifo_rlimit(priv, fifo, bw); 16134b4255edSIvan Khoronzhuk } 16144b4255edSIvan Khoronzhuk } 16154b4255edSIvan Khoronzhuk 16164b4255edSIvan Khoronzhuk static void cpsw_mqprio_resume(struct cpsw_slave *slave, struct cpsw_priv *priv) 16174b4255edSIvan Khoronzhuk { 16184b4255edSIvan Khoronzhuk struct cpsw_common *cpsw = priv->cpsw; 16194b4255edSIvan Khoronzhuk u32 tx_prio_map = 0; 16204b4255edSIvan Khoronzhuk int i, tc, fifo; 16214b4255edSIvan Khoronzhuk u32 tx_prio_rg; 16224b4255edSIvan Khoronzhuk 16234b4255edSIvan Khoronzhuk if (!priv->mqprio_hw) 16244b4255edSIvan Khoronzhuk return; 16254b4255edSIvan Khoronzhuk 16264b4255edSIvan Khoronzhuk for (i = 0; i < 8; i++) { 16274b4255edSIvan Khoronzhuk tc = netdev_get_prio_tc_map(priv->ndev, i); 16284b4255edSIvan Khoronzhuk fifo = CPSW_FIFO_SHAPERS_NUM - tc; 16294b4255edSIvan Khoronzhuk tx_prio_map |= fifo << (4 * i); 16304b4255edSIvan Khoronzhuk } 16314b4255edSIvan Khoronzhuk 16324b4255edSIvan Khoronzhuk tx_prio_rg = cpsw->version == CPSW_VERSION_1 ? 16334b4255edSIvan Khoronzhuk CPSW1_TX_PRI_MAP : CPSW2_TX_PRI_MAP; 16344b4255edSIvan Khoronzhuk 16354b4255edSIvan Khoronzhuk slave_write(slave, tx_prio_map, tx_prio_rg); 16364b4255edSIvan Khoronzhuk } 16374b4255edSIvan Khoronzhuk 163800fe4712SIvan Khoronzhuk static int cpsw_restore_vlans(struct net_device *vdev, int vid, void *arg) 163900fe4712SIvan Khoronzhuk { 164000fe4712SIvan Khoronzhuk struct cpsw_priv *priv = arg; 164100fe4712SIvan Khoronzhuk 164200fe4712SIvan Khoronzhuk if (!vdev) 164300fe4712SIvan Khoronzhuk return 0; 164400fe4712SIvan Khoronzhuk 164500fe4712SIvan Khoronzhuk cpsw_ndo_vlan_rx_add_vid(priv->ndev, 0, vid); 164600fe4712SIvan Khoronzhuk return 0; 164700fe4712SIvan Khoronzhuk } 164800fe4712SIvan Khoronzhuk 16494b4255edSIvan Khoronzhuk /* restore resources after port reset */ 16504b4255edSIvan Khoronzhuk static void cpsw_restore(struct cpsw_priv *priv) 16514b4255edSIvan Khoronzhuk { 165200fe4712SIvan Khoronzhuk /* restore vlan configurations */ 165300fe4712SIvan Khoronzhuk vlan_for_each(priv->ndev, cpsw_restore_vlans, priv); 165400fe4712SIvan Khoronzhuk 16554b4255edSIvan Khoronzhuk /* restore MQPRIO offload */ 16564b4255edSIvan Khoronzhuk for_each_slave(priv, cpsw_mqprio_resume, priv); 16574b4255edSIvan Khoronzhuk 16584b4255edSIvan Khoronzhuk /* restore CBS offload */ 16594b4255edSIvan Khoronzhuk for_each_slave(priv, cpsw_cbs_resume, priv); 16604b4255edSIvan Khoronzhuk } 16614b4255edSIvan Khoronzhuk 1662df828598SMugunthan V N static int cpsw_ndo_open(struct net_device *ndev) 1663df828598SMugunthan V N { 1664df828598SMugunthan V N struct cpsw_priv *priv = netdev_priv(ndev); 1665649a1688SIvan Khoronzhuk struct cpsw_common *cpsw = priv->cpsw; 16663802dce1SIvan Khoronzhuk int ret; 1667df828598SMugunthan V N u32 reg; 1668df828598SMugunthan V N 166956e31bd8SIvan Khoronzhuk ret = pm_runtime_get_sync(cpsw->dev); 1670108a6537SGrygorii Strashko if (ret < 0) { 167156e31bd8SIvan Khoronzhuk pm_runtime_put_noidle(cpsw->dev); 1672108a6537SGrygorii Strashko return ret; 1673108a6537SGrygorii Strashko } 16743fa88c51SGrygorii Strashko 1675df828598SMugunthan V N netif_carrier_off(ndev); 1676df828598SMugunthan V N 1677e05107e6SIvan Khoronzhuk /* Notify the stack of the actual queue counts. */ 1678e05107e6SIvan Khoronzhuk ret = netif_set_real_num_tx_queues(ndev, cpsw->tx_ch_num); 1679e05107e6SIvan Khoronzhuk if (ret) { 1680e05107e6SIvan Khoronzhuk dev_err(priv->dev, "cannot set real number of tx queues\n"); 1681e05107e6SIvan Khoronzhuk goto err_cleanup; 1682e05107e6SIvan Khoronzhuk } 1683e05107e6SIvan Khoronzhuk 1684e05107e6SIvan Khoronzhuk ret = netif_set_real_num_rx_queues(ndev, cpsw->rx_ch_num); 1685e05107e6SIvan Khoronzhuk if (ret) { 1686e05107e6SIvan Khoronzhuk dev_err(priv->dev, "cannot set real number of rx queues\n"); 1687e05107e6SIvan Khoronzhuk goto err_cleanup; 1688e05107e6SIvan Khoronzhuk } 1689e05107e6SIvan Khoronzhuk 16902a05a622SIvan Khoronzhuk reg = cpsw->version; 1691df828598SMugunthan V N 1692df828598SMugunthan V N dev_info(priv->dev, "initializing cpsw version %d.%d (%d)\n", 1693df828598SMugunthan V N CPSW_MAJOR_VERSION(reg), CPSW_MINOR_VERSION(reg), 1694df828598SMugunthan V N CPSW_RTL_VERSION(reg)); 1695df828598SMugunthan V N 1696d5bc1613SIvan Khoronzhuk /* Initialize host and slave ports */ 1697d5bc1613SIvan Khoronzhuk if (!cpsw->usage_count) 1698df828598SMugunthan V N cpsw_init_host_port(priv); 1699df828598SMugunthan V N for_each_slave(priv, cpsw_slave_open, priv); 1700df828598SMugunthan V N 17013b72c2feSMugunthan V N /* Add default VLAN */ 1702606f3993SIvan Khoronzhuk if (!cpsw->data.dual_emac) 17033b72c2feSMugunthan V N cpsw_add_default_vlan(priv); 1704e6afea0bSMugunthan V N else 17052a05a622SIvan Khoronzhuk cpsw_ale_add_vlan(cpsw->ale, cpsw->data.default_vlan, 170661f1cef9SGrygorii Strashko ALE_ALL_PORTS, ALE_ALL_PORTS, 0, 0); 17073b72c2feSMugunthan V N 1708d5bc1613SIvan Khoronzhuk /* initialize shared resources for every ndev */ 1709d5bc1613SIvan Khoronzhuk if (!cpsw->usage_count) { 1710d9ba8f9eSMugunthan V N /* disable priority elevation */ 1711dda5f5feSGrygorii Strashko writel_relaxed(0, &cpsw->regs->ptype); 1712df828598SMugunthan V N 1713d9ba8f9eSMugunthan V N /* enable statistics collection only on all ports */ 1714dda5f5feSGrygorii Strashko writel_relaxed(0x7, &cpsw->regs->stat_port_en); 1715df828598SMugunthan V N 17161923d6e4SMugunthan V N /* Enable internal fifo flow control */ 17175d8d0d4dSIvan Khoronzhuk writel(0x7, &cpsw->regs->flow_control); 17181923d6e4SMugunthan V N 1719dbc4ec52SIvan Khoronzhuk napi_enable(&cpsw->napi_rx); 1720dbc4ec52SIvan Khoronzhuk napi_enable(&cpsw->napi_tx); 1721d354eb85SMugunthan V N 1722e38b5a3dSIvan Khoronzhuk if (cpsw->tx_irq_disabled) { 1723e38b5a3dSIvan Khoronzhuk cpsw->tx_irq_disabled = false; 1724e38b5a3dSIvan Khoronzhuk enable_irq(cpsw->irqs_table[1]); 17257da11600SMugunthan V N } 17267da11600SMugunthan V N 1727e38b5a3dSIvan Khoronzhuk if (cpsw->rx_irq_disabled) { 1728e38b5a3dSIvan Khoronzhuk cpsw->rx_irq_disabled = false; 1729e38b5a3dSIvan Khoronzhuk enable_irq(cpsw->irqs_table[0]); 17307da11600SMugunthan V N } 17317da11600SMugunthan V N 17329ed4050cSIvan Khoronzhuk /* create rxqs for both infs in dual mac as they use same pool 17339ed4050cSIvan Khoronzhuk * and must be destroyed together when no users. 17349ed4050cSIvan Khoronzhuk */ 17359ed4050cSIvan Khoronzhuk ret = cpsw_create_xdp_rxqs(cpsw); 17369ed4050cSIvan Khoronzhuk if (ret < 0) 17379ed4050cSIvan Khoronzhuk goto err_cleanup; 17389ed4050cSIvan Khoronzhuk 17393802dce1SIvan Khoronzhuk ret = cpsw_fill_rx_channels(priv); 17403802dce1SIvan Khoronzhuk if (ret < 0) 1741aacebbf8SSebastian Siewior goto err_cleanup; 1742f280e89aSMugunthan V N 17438a2c9a5aSGrygorii Strashko if (cpts_register(cpsw->cpts)) 1744f280e89aSMugunthan V N dev_err(priv->dev, "error registering cpts device\n"); 1745f280e89aSMugunthan V N 1746d9ba8f9eSMugunthan V N } 1747df828598SMugunthan V N 17484b4255edSIvan Khoronzhuk cpsw_restore(priv); 17494b4255edSIvan Khoronzhuk 1750ff5b8ef2SMugunthan V N /* Enable Interrupt pacing if configured */ 17512a05a622SIvan Khoronzhuk if (cpsw->coal_intvl != 0) { 1752ff5b8ef2SMugunthan V N struct ethtool_coalesce coal; 1753ff5b8ef2SMugunthan V N 17542a05a622SIvan Khoronzhuk coal.rx_coalesce_usecs = cpsw->coal_intvl; 1755ff5b8ef2SMugunthan V N cpsw_set_coalesce(ndev, &coal); 1756ff5b8ef2SMugunthan V N } 1757ff5b8ef2SMugunthan V N 17582c836bd9SIvan Khoronzhuk cpdma_ctlr_start(cpsw->dma); 17592c836bd9SIvan Khoronzhuk cpsw_intr_enable(cpsw); 1760d5bc1613SIvan Khoronzhuk cpsw->usage_count++; 1761f63a975eSMugunthan V N 1762df828598SMugunthan V N return 0; 1763df828598SMugunthan V N 1764aacebbf8SSebastian Siewior err_cleanup: 176502cacedeSIvan Khoronzhuk if (!cpsw->usage_count) { 17662c836bd9SIvan Khoronzhuk cpdma_ctlr_stop(cpsw->dma); 17679ed4050cSIvan Khoronzhuk cpsw_destroy_xdp_rxqs(cpsw); 176802cacedeSIvan Khoronzhuk } 176902cacedeSIvan Khoronzhuk 17709ed4050cSIvan Khoronzhuk for_each_slave(priv, cpsw_slave_stop, cpsw); 177156e31bd8SIvan Khoronzhuk pm_runtime_put_sync(cpsw->dev); 1772aacebbf8SSebastian Siewior netif_carrier_off(priv->ndev); 1773aacebbf8SSebastian Siewior return ret; 1774df828598SMugunthan V N } 1775df828598SMugunthan V N 1776df828598SMugunthan V N static int cpsw_ndo_stop(struct net_device *ndev) 1777df828598SMugunthan V N { 1778df828598SMugunthan V N struct cpsw_priv *priv = netdev_priv(ndev); 1779649a1688SIvan Khoronzhuk struct cpsw_common *cpsw = priv->cpsw; 1780df828598SMugunthan V N 1781df828598SMugunthan V N cpsw_info(priv, ifdown, "shutting down cpsw device\n"); 178215180ecaSIvan Khoronzhuk __hw_addr_ref_unsync_dev(&ndev->mc, ndev, cpsw_purge_all_mc); 1783e05107e6SIvan Khoronzhuk netif_tx_stop_all_queues(priv->ndev); 1784df828598SMugunthan V N netif_carrier_off(priv->ndev); 1785d9ba8f9eSMugunthan V N 1786d5bc1613SIvan Khoronzhuk if (cpsw->usage_count <= 1) { 1787dbc4ec52SIvan Khoronzhuk napi_disable(&cpsw->napi_rx); 1788dbc4ec52SIvan Khoronzhuk napi_disable(&cpsw->napi_tx); 17892a05a622SIvan Khoronzhuk cpts_unregister(cpsw->cpts); 17902c836bd9SIvan Khoronzhuk cpsw_intr_disable(cpsw); 17912c836bd9SIvan Khoronzhuk cpdma_ctlr_stop(cpsw->dma); 17922a05a622SIvan Khoronzhuk cpsw_ale_stop(cpsw->ale); 17939ed4050cSIvan Khoronzhuk cpsw_destroy_xdp_rxqs(cpsw); 1794d9ba8f9eSMugunthan V N } 17952a05a622SIvan Khoronzhuk for_each_slave(priv, cpsw_slave_stop, cpsw); 17960be01b8eSIvan Khoronzhuk 17970be01b8eSIvan Khoronzhuk if (cpsw_need_resplit(cpsw)) 17989763a891SGrygorii Strashko cpsw_split_res(cpsw); 17990be01b8eSIvan Khoronzhuk 1800d5bc1613SIvan Khoronzhuk cpsw->usage_count--; 180156e31bd8SIvan Khoronzhuk pm_runtime_put_sync(cpsw->dev); 1802df828598SMugunthan V N return 0; 1803df828598SMugunthan V N } 1804df828598SMugunthan V N 1805df828598SMugunthan V N static netdev_tx_t cpsw_ndo_start_xmit(struct sk_buff *skb, 1806df828598SMugunthan V N struct net_device *ndev) 1807df828598SMugunthan V N { 1808df828598SMugunthan V N struct cpsw_priv *priv = netdev_priv(ndev); 18092c836bd9SIvan Khoronzhuk struct cpsw_common *cpsw = priv->cpsw; 1810f44f8417SIvan Khoronzhuk struct cpts *cpts = cpsw->cpts; 1811e05107e6SIvan Khoronzhuk struct netdev_queue *txq; 1812e05107e6SIvan Khoronzhuk struct cpdma_chan *txch; 1813e05107e6SIvan Khoronzhuk int ret, q_idx; 1814df828598SMugunthan V N 1815df828598SMugunthan V N if (skb_padto(skb, CPSW_MIN_PACKET_SIZE)) { 1816df828598SMugunthan V N cpsw_err(priv, tx_err, "packet pad failed\n"); 18178dc43ddcSTobias Klauser ndev->stats.tx_dropped++; 18181bf96050SIvan Khoronzhuk return NET_XMIT_DROP; 1819df828598SMugunthan V N } 1820df828598SMugunthan V N 18219232b16dSMugunthan V N if (skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP && 1822a9423120SIvan Khoronzhuk priv->tx_ts_enabled && cpts_can_timestamp(cpts, skb)) 18232e5b38abSRichard Cochran skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS; 18242e5b38abSRichard Cochran 1825e05107e6SIvan Khoronzhuk q_idx = skb_get_queue_mapping(skb); 1826e05107e6SIvan Khoronzhuk if (q_idx >= cpsw->tx_ch_num) 1827e05107e6SIvan Khoronzhuk q_idx = q_idx % cpsw->tx_ch_num; 1828e05107e6SIvan Khoronzhuk 18298feb0a19SIvan Khoronzhuk txch = cpsw->txv[q_idx].ch; 183062f94c21SGrygorii Strashko txq = netdev_get_tx_queue(ndev, q_idx); 183110ae8054SGrygorii Strashko skb_tx_timestamp(skb); 183210ae8054SGrygorii Strashko ret = cpdma_chan_submit(txch, skb, skb->data, skb->len, 183310ae8054SGrygorii Strashko priv->emac_port + cpsw->data.dual_emac); 1834df828598SMugunthan V N if (unlikely(ret != 0)) { 1835df828598SMugunthan V N cpsw_err(priv, tx_err, "desc submit failed\n"); 1836df828598SMugunthan V N goto fail; 1837df828598SMugunthan V N } 1838df828598SMugunthan V N 1839fae50823SMugunthan V N /* If there is no more tx desc left free then we need to 1840fae50823SMugunthan V N * tell the kernel to stop sending us tx frames. 1841fae50823SMugunthan V N */ 1842e05107e6SIvan Khoronzhuk if (unlikely(!cpdma_check_free_tx_desc(txch))) { 1843e05107e6SIvan Khoronzhuk netif_tx_stop_queue(txq); 184462f94c21SGrygorii Strashko 184562f94c21SGrygorii Strashko /* Barrier, so that stop_queue visible to other cpus */ 184662f94c21SGrygorii Strashko smp_mb__after_atomic(); 184762f94c21SGrygorii Strashko 184862f94c21SGrygorii Strashko if (cpdma_check_free_tx_desc(txch)) 184962f94c21SGrygorii Strashko netif_tx_wake_queue(txq); 1850e05107e6SIvan Khoronzhuk } 1851fae50823SMugunthan V N 1852df828598SMugunthan V N return NETDEV_TX_OK; 1853df828598SMugunthan V N fail: 18548dc43ddcSTobias Klauser ndev->stats.tx_dropped++; 1855e05107e6SIvan Khoronzhuk netif_tx_stop_queue(txq); 185662f94c21SGrygorii Strashko 185762f94c21SGrygorii Strashko /* Barrier, so that stop_queue visible to other cpus */ 185862f94c21SGrygorii Strashko smp_mb__after_atomic(); 185962f94c21SGrygorii Strashko 186062f94c21SGrygorii Strashko if (cpdma_check_free_tx_desc(txch)) 186162f94c21SGrygorii Strashko netif_tx_wake_queue(txq); 186262f94c21SGrygorii Strashko 1863df828598SMugunthan V N return NETDEV_TX_BUSY; 1864df828598SMugunthan V N } 1865df828598SMugunthan V N 1866c8395d4eSGrygorii Strashko #if IS_ENABLED(CONFIG_TI_CPTS) 18672e5b38abSRichard Cochran 1868a9423120SIvan Khoronzhuk static void cpsw_hwtstamp_v1(struct cpsw_priv *priv) 18692e5b38abSRichard Cochran { 1870a9423120SIvan Khoronzhuk struct cpsw_common *cpsw = priv->cpsw; 1871606f3993SIvan Khoronzhuk struct cpsw_slave *slave = &cpsw->slaves[cpsw->data.active_slave]; 18722e5b38abSRichard Cochran u32 ts_en, seq_id; 18732e5b38abSRichard Cochran 1874a9423120SIvan Khoronzhuk if (!priv->tx_ts_enabled && !priv->rx_ts_enabled) { 18752e5b38abSRichard Cochran slave_write(slave, 0, CPSW1_TS_CTL); 18762e5b38abSRichard Cochran return; 18772e5b38abSRichard Cochran } 18782e5b38abSRichard Cochran 18792e5b38abSRichard Cochran seq_id = (30 << CPSW_V1_SEQ_ID_OFS_SHIFT) | ETH_P_1588; 18802e5b38abSRichard Cochran ts_en = EVENT_MSG_BITS << CPSW_V1_MSG_TYPE_OFS; 18812e5b38abSRichard Cochran 1882a9423120SIvan Khoronzhuk if (priv->tx_ts_enabled) 18832e5b38abSRichard Cochran ts_en |= CPSW_V1_TS_TX_EN; 18842e5b38abSRichard Cochran 1885a9423120SIvan Khoronzhuk if (priv->rx_ts_enabled) 18862e5b38abSRichard Cochran ts_en |= CPSW_V1_TS_RX_EN; 18872e5b38abSRichard Cochran 18882e5b38abSRichard Cochran slave_write(slave, ts_en, CPSW1_TS_CTL); 18892e5b38abSRichard Cochran slave_write(slave, seq_id, CPSW1_TS_SEQ_LTYPE); 18902e5b38abSRichard Cochran } 18912e5b38abSRichard Cochran 18922e5b38abSRichard Cochran static void cpsw_hwtstamp_v2(struct cpsw_priv *priv) 18932e5b38abSRichard Cochran { 1894d9ba8f9eSMugunthan V N struct cpsw_slave *slave; 18955d8d0d4dSIvan Khoronzhuk struct cpsw_common *cpsw = priv->cpsw; 18962e5b38abSRichard Cochran u32 ctrl, mtype; 18972e5b38abSRichard Cochran 1898cb7d78d0SIvan Khoronzhuk slave = &cpsw->slaves[cpsw_slave_index(cpsw, priv)]; 1899d9ba8f9eSMugunthan V N 19002e5b38abSRichard Cochran ctrl = slave_read(slave, CPSW2_CONTROL); 19012a05a622SIvan Khoronzhuk switch (cpsw->version) { 190209c55372SGeorge Cherian case CPSW_VERSION_2: 190309c55372SGeorge Cherian ctrl &= ~CTRL_V2_ALL_TS_MASK; 19042e5b38abSRichard Cochran 1905a9423120SIvan Khoronzhuk if (priv->tx_ts_enabled) 190609c55372SGeorge Cherian ctrl |= CTRL_V2_TX_TS_BITS; 19072e5b38abSRichard Cochran 1908a9423120SIvan Khoronzhuk if (priv->rx_ts_enabled) 190909c55372SGeorge Cherian ctrl |= CTRL_V2_RX_TS_BITS; 191009c55372SGeorge Cherian break; 191109c55372SGeorge Cherian case CPSW_VERSION_3: 191209c55372SGeorge Cherian default: 191309c55372SGeorge Cherian ctrl &= ~CTRL_V3_ALL_TS_MASK; 191409c55372SGeorge Cherian 1915a9423120SIvan Khoronzhuk if (priv->tx_ts_enabled) 191609c55372SGeorge Cherian ctrl |= CTRL_V3_TX_TS_BITS; 191709c55372SGeorge Cherian 1918a9423120SIvan Khoronzhuk if (priv->rx_ts_enabled) 191909c55372SGeorge Cherian ctrl |= CTRL_V3_RX_TS_BITS; 192009c55372SGeorge Cherian break; 192109c55372SGeorge Cherian } 19222e5b38abSRichard Cochran 19232e5b38abSRichard Cochran mtype = (30 << TS_SEQ_ID_OFFSET_SHIFT) | EVENT_MSG_BITS; 19242e5b38abSRichard Cochran 19252e5b38abSRichard Cochran slave_write(slave, mtype, CPSW2_TS_SEQ_MTYPE); 19262e5b38abSRichard Cochran slave_write(slave, ctrl, CPSW2_CONTROL); 1927dda5f5feSGrygorii Strashko writel_relaxed(ETH_P_1588, &cpsw->regs->ts_ltype); 19281ebb2446SIvan Khoronzhuk writel_relaxed(ETH_P_8021Q, &cpsw->regs->vlan_ltype); 19292e5b38abSRichard Cochran } 19302e5b38abSRichard Cochran 1931a5b4145bSBen Hutchings static int cpsw_hwtstamp_set(struct net_device *dev, struct ifreq *ifr) 19322e5b38abSRichard Cochran { 19333177bf6fSMugunthan V N struct cpsw_priv *priv = netdev_priv(dev); 19342e5b38abSRichard Cochran struct hwtstamp_config cfg; 19352a05a622SIvan Khoronzhuk struct cpsw_common *cpsw = priv->cpsw; 19362e5b38abSRichard Cochran 19372a05a622SIvan Khoronzhuk if (cpsw->version != CPSW_VERSION_1 && 19382a05a622SIvan Khoronzhuk cpsw->version != CPSW_VERSION_2 && 19392a05a622SIvan Khoronzhuk cpsw->version != CPSW_VERSION_3) 19402ee91e54SBen Hutchings return -EOPNOTSUPP; 19412ee91e54SBen Hutchings 19422e5b38abSRichard Cochran if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg))) 19432e5b38abSRichard Cochran return -EFAULT; 19442e5b38abSRichard Cochran 19452e5b38abSRichard Cochran /* reserved for future extensions */ 19462e5b38abSRichard Cochran if (cfg.flags) 19472e5b38abSRichard Cochran return -EINVAL; 19482e5b38abSRichard Cochran 19492ee91e54SBen Hutchings if (cfg.tx_type != HWTSTAMP_TX_OFF && cfg.tx_type != HWTSTAMP_TX_ON) 19502e5b38abSRichard Cochran return -ERANGE; 19512e5b38abSRichard Cochran 19522e5b38abSRichard Cochran switch (cfg.rx_filter) { 19532e5b38abSRichard Cochran case HWTSTAMP_FILTER_NONE: 1954a9423120SIvan Khoronzhuk priv->rx_ts_enabled = 0; 19552e5b38abSRichard Cochran break; 19562e5b38abSRichard Cochran case HWTSTAMP_FILTER_ALL: 1957e9523a5aSGrygorii Strashko case HWTSTAMP_FILTER_NTP_ALL: 1958e9523a5aSGrygorii Strashko return -ERANGE; 19592e5b38abSRichard Cochran case HWTSTAMP_FILTER_PTP_V1_L4_EVENT: 19602e5b38abSRichard Cochran case HWTSTAMP_FILTER_PTP_V1_L4_SYNC: 19612e5b38abSRichard Cochran case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ: 1962a9423120SIvan Khoronzhuk priv->rx_ts_enabled = HWTSTAMP_FILTER_PTP_V1_L4_EVENT; 1963e9523a5aSGrygorii Strashko cfg.rx_filter = HWTSTAMP_FILTER_PTP_V1_L4_EVENT; 1964e9523a5aSGrygorii Strashko break; 19652e5b38abSRichard Cochran case HWTSTAMP_FILTER_PTP_V2_L4_EVENT: 19662e5b38abSRichard Cochran case HWTSTAMP_FILTER_PTP_V2_L4_SYNC: 19672e5b38abSRichard Cochran case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ: 19682e5b38abSRichard Cochran case HWTSTAMP_FILTER_PTP_V2_L2_EVENT: 19692e5b38abSRichard Cochran case HWTSTAMP_FILTER_PTP_V2_L2_SYNC: 19702e5b38abSRichard Cochran case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ: 19712e5b38abSRichard Cochran case HWTSTAMP_FILTER_PTP_V2_EVENT: 19722e5b38abSRichard Cochran case HWTSTAMP_FILTER_PTP_V2_SYNC: 19732e5b38abSRichard Cochran case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ: 1974a9423120SIvan Khoronzhuk priv->rx_ts_enabled = HWTSTAMP_FILTER_PTP_V2_EVENT; 19752e5b38abSRichard Cochran cfg.rx_filter = HWTSTAMP_FILTER_PTP_V2_EVENT; 19762e5b38abSRichard Cochran break; 19772e5b38abSRichard Cochran default: 19782e5b38abSRichard Cochran return -ERANGE; 19792e5b38abSRichard Cochran } 19802e5b38abSRichard Cochran 1981a9423120SIvan Khoronzhuk priv->tx_ts_enabled = cfg.tx_type == HWTSTAMP_TX_ON; 19822ee91e54SBen Hutchings 19832a05a622SIvan Khoronzhuk switch (cpsw->version) { 19842e5b38abSRichard Cochran case CPSW_VERSION_1: 1985a9423120SIvan Khoronzhuk cpsw_hwtstamp_v1(priv); 19862e5b38abSRichard Cochran break; 19872e5b38abSRichard Cochran case CPSW_VERSION_2: 1988f7d403cbSGeorge Cherian case CPSW_VERSION_3: 19892e5b38abSRichard Cochran cpsw_hwtstamp_v2(priv); 19902e5b38abSRichard Cochran break; 19912e5b38abSRichard Cochran default: 19922ee91e54SBen Hutchings WARN_ON(1); 19932e5b38abSRichard Cochran } 19942e5b38abSRichard Cochran 19952e5b38abSRichard Cochran return copy_to_user(ifr->ifr_data, &cfg, sizeof(cfg)) ? -EFAULT : 0; 19962e5b38abSRichard Cochran } 19972e5b38abSRichard Cochran 1998a5b4145bSBen Hutchings static int cpsw_hwtstamp_get(struct net_device *dev, struct ifreq *ifr) 1999a5b4145bSBen Hutchings { 20002a05a622SIvan Khoronzhuk struct cpsw_common *cpsw = ndev_to_cpsw(dev); 2001a9423120SIvan Khoronzhuk struct cpsw_priv *priv = netdev_priv(dev); 2002a5b4145bSBen Hutchings struct hwtstamp_config cfg; 2003a5b4145bSBen Hutchings 20042a05a622SIvan Khoronzhuk if (cpsw->version != CPSW_VERSION_1 && 20052a05a622SIvan Khoronzhuk cpsw->version != CPSW_VERSION_2 && 20062a05a622SIvan Khoronzhuk cpsw->version != CPSW_VERSION_3) 2007a5b4145bSBen Hutchings return -EOPNOTSUPP; 2008a5b4145bSBen Hutchings 2009a5b4145bSBen Hutchings cfg.flags = 0; 2010a9423120SIvan Khoronzhuk cfg.tx_type = priv->tx_ts_enabled ? HWTSTAMP_TX_ON : HWTSTAMP_TX_OFF; 2011a9423120SIvan Khoronzhuk cfg.rx_filter = priv->rx_ts_enabled; 2012a5b4145bSBen Hutchings 2013a5b4145bSBen Hutchings return copy_to_user(ifr->ifr_data, &cfg, sizeof(cfg)) ? -EFAULT : 0; 2014a5b4145bSBen Hutchings } 2015c8395d4eSGrygorii Strashko #else 2016c8395d4eSGrygorii Strashko static int cpsw_hwtstamp_get(struct net_device *dev, struct ifreq *ifr) 2017c8395d4eSGrygorii Strashko { 2018c8395d4eSGrygorii Strashko return -EOPNOTSUPP; 2019c8395d4eSGrygorii Strashko } 2020a5b4145bSBen Hutchings 2021c8395d4eSGrygorii Strashko static int cpsw_hwtstamp_set(struct net_device *dev, struct ifreq *ifr) 2022c8395d4eSGrygorii Strashko { 2023c8395d4eSGrygorii Strashko return -EOPNOTSUPP; 2024c8395d4eSGrygorii Strashko } 20252e5b38abSRichard Cochran #endif /*CONFIG_TI_CPTS*/ 20262e5b38abSRichard Cochran 20272e5b38abSRichard Cochran static int cpsw_ndo_ioctl(struct net_device *dev, struct ifreq *req, int cmd) 20282e5b38abSRichard Cochran { 202911f2c988SMugunthan V N struct cpsw_priv *priv = netdev_priv(dev); 2030606f3993SIvan Khoronzhuk struct cpsw_common *cpsw = priv->cpsw; 2031606f3993SIvan Khoronzhuk int slave_no = cpsw_slave_index(cpsw, priv); 203211f2c988SMugunthan V N 20332e5b38abSRichard Cochran if (!netif_running(dev)) 20342e5b38abSRichard Cochran return -EINVAL; 20352e5b38abSRichard Cochran 203611f2c988SMugunthan V N switch (cmd) { 203711f2c988SMugunthan V N case SIOCSHWTSTAMP: 2038a5b4145bSBen Hutchings return cpsw_hwtstamp_set(dev, req); 2039a5b4145bSBen Hutchings case SIOCGHWTSTAMP: 2040a5b4145bSBen Hutchings return cpsw_hwtstamp_get(dev, req); 20412e5b38abSRichard Cochran } 20422e5b38abSRichard Cochran 2043606f3993SIvan Khoronzhuk if (!cpsw->slaves[slave_no].phy) 2044c1b59947SStefan Sørensen return -EOPNOTSUPP; 2045606f3993SIvan Khoronzhuk return phy_mii_ioctl(cpsw->slaves[slave_no].phy, req, cmd); 204611f2c988SMugunthan V N } 204711f2c988SMugunthan V N 2048df828598SMugunthan V N static void cpsw_ndo_tx_timeout(struct net_device *ndev) 2049df828598SMugunthan V N { 2050df828598SMugunthan V N struct cpsw_priv *priv = netdev_priv(ndev); 20512c836bd9SIvan Khoronzhuk struct cpsw_common *cpsw = priv->cpsw; 2052e05107e6SIvan Khoronzhuk int ch; 2053df828598SMugunthan V N 2054df828598SMugunthan V N cpsw_err(priv, tx_err, "transmit timeout, restarting dma\n"); 20558dc43ddcSTobias Klauser ndev->stats.tx_errors++; 20562c836bd9SIvan Khoronzhuk cpsw_intr_disable(cpsw); 2057e05107e6SIvan Khoronzhuk for (ch = 0; ch < cpsw->tx_ch_num; ch++) { 20588feb0a19SIvan Khoronzhuk cpdma_chan_stop(cpsw->txv[ch].ch); 20598feb0a19SIvan Khoronzhuk cpdma_chan_start(cpsw->txv[ch].ch); 2060e05107e6SIvan Khoronzhuk } 2061e05107e6SIvan Khoronzhuk 20622c836bd9SIvan Khoronzhuk cpsw_intr_enable(cpsw); 206375514b66SGrygorii Strashko netif_trans_update(ndev); 206475514b66SGrygorii Strashko netif_tx_wake_all_queues(ndev); 2065df828598SMugunthan V N } 2066df828598SMugunthan V N 2067dcfd8d58SMugunthan V N static int cpsw_ndo_set_mac_address(struct net_device *ndev, void *p) 2068dcfd8d58SMugunthan V N { 2069dcfd8d58SMugunthan V N struct cpsw_priv *priv = netdev_priv(ndev); 2070dcfd8d58SMugunthan V N struct sockaddr *addr = (struct sockaddr *)p; 2071649a1688SIvan Khoronzhuk struct cpsw_common *cpsw = priv->cpsw; 2072dcfd8d58SMugunthan V N int flags = 0; 2073dcfd8d58SMugunthan V N u16 vid = 0; 2074a6c5d14fSGrygorii Strashko int ret; 2075dcfd8d58SMugunthan V N 2076dcfd8d58SMugunthan V N if (!is_valid_ether_addr(addr->sa_data)) 2077dcfd8d58SMugunthan V N return -EADDRNOTAVAIL; 2078dcfd8d58SMugunthan V N 207956e31bd8SIvan Khoronzhuk ret = pm_runtime_get_sync(cpsw->dev); 2080a6c5d14fSGrygorii Strashko if (ret < 0) { 208156e31bd8SIvan Khoronzhuk pm_runtime_put_noidle(cpsw->dev); 2082a6c5d14fSGrygorii Strashko return ret; 2083a6c5d14fSGrygorii Strashko } 2084a6c5d14fSGrygorii Strashko 2085606f3993SIvan Khoronzhuk if (cpsw->data.dual_emac) { 2086606f3993SIvan Khoronzhuk vid = cpsw->slaves[priv->emac_port].port_vlan; 2087dcfd8d58SMugunthan V N flags = ALE_VLAN; 2088dcfd8d58SMugunthan V N } 2089dcfd8d58SMugunthan V N 20902a05a622SIvan Khoronzhuk cpsw_ale_del_ucast(cpsw->ale, priv->mac_addr, HOST_PORT_NUM, 2091dcfd8d58SMugunthan V N flags, vid); 20922a05a622SIvan Khoronzhuk cpsw_ale_add_ucast(cpsw->ale, addr->sa_data, HOST_PORT_NUM, 2093dcfd8d58SMugunthan V N flags, vid); 2094dcfd8d58SMugunthan V N 2095dcfd8d58SMugunthan V N memcpy(priv->mac_addr, addr->sa_data, ETH_ALEN); 2096dcfd8d58SMugunthan V N memcpy(ndev->dev_addr, priv->mac_addr, ETH_ALEN); 2097dcfd8d58SMugunthan V N for_each_slave(priv, cpsw_set_slave_mac, priv); 2098dcfd8d58SMugunthan V N 209956e31bd8SIvan Khoronzhuk pm_runtime_put(cpsw->dev); 2100a6c5d14fSGrygorii Strashko 2101dcfd8d58SMugunthan V N return 0; 2102dcfd8d58SMugunthan V N } 2103dcfd8d58SMugunthan V N 21043b72c2feSMugunthan V N static inline int cpsw_add_vlan_ale_entry(struct cpsw_priv *priv, 21053b72c2feSMugunthan V N unsigned short vid) 21063b72c2feSMugunthan V N { 21073b72c2feSMugunthan V N int ret; 21089f6bd8faSMugunthan V N int unreg_mcast_mask = 0; 21095b3a5a14SIvan Khoronzhuk int mcast_mask; 21109f6bd8faSMugunthan V N u32 port_mask; 2111606f3993SIvan Khoronzhuk struct cpsw_common *cpsw = priv->cpsw; 21129f6bd8faSMugunthan V N 2113606f3993SIvan Khoronzhuk if (cpsw->data.dual_emac) { 21149f6bd8faSMugunthan V N port_mask = (1 << (priv->emac_port + 1)) | ALE_PORT_HOST; 21159f6bd8faSMugunthan V N 21165b3a5a14SIvan Khoronzhuk mcast_mask = ALE_PORT_HOST; 21179f6bd8faSMugunthan V N if (priv->ndev->flags & IFF_ALLMULTI) 21185b3a5a14SIvan Khoronzhuk unreg_mcast_mask = mcast_mask; 21199f6bd8faSMugunthan V N } else { 21209f6bd8faSMugunthan V N port_mask = ALE_ALL_PORTS; 21215b3a5a14SIvan Khoronzhuk mcast_mask = port_mask; 21221e5c4bc4SLennart Sorensen 21231e5c4bc4SLennart Sorensen if (priv->ndev->flags & IFF_ALLMULTI) 21241e5c4bc4SLennart Sorensen unreg_mcast_mask = ALE_ALL_PORTS; 21251e5c4bc4SLennart Sorensen else 21261e5c4bc4SLennart Sorensen unreg_mcast_mask = ALE_PORT_1 | ALE_PORT_2; 21279f6bd8faSMugunthan V N } 21283b72c2feSMugunthan V N 21292a05a622SIvan Khoronzhuk ret = cpsw_ale_add_vlan(cpsw->ale, vid, port_mask, 0, port_mask, 213061f1cef9SGrygorii Strashko unreg_mcast_mask); 21313b72c2feSMugunthan V N if (ret != 0) 21323b72c2feSMugunthan V N return ret; 21333b72c2feSMugunthan V N 21342a05a622SIvan Khoronzhuk ret = cpsw_ale_add_ucast(cpsw->ale, priv->mac_addr, 213571a2cbb7SGrygorii Strashko HOST_PORT_NUM, ALE_VLAN, vid); 21363b72c2feSMugunthan V N if (ret != 0) 21373b72c2feSMugunthan V N goto clean_vid; 21383b72c2feSMugunthan V N 21392a05a622SIvan Khoronzhuk ret = cpsw_ale_add_mcast(cpsw->ale, priv->ndev->broadcast, 21405b3a5a14SIvan Khoronzhuk mcast_mask, ALE_VLAN, vid, 0); 21413b72c2feSMugunthan V N if (ret != 0) 21423b72c2feSMugunthan V N goto clean_vlan_ucast; 21433b72c2feSMugunthan V N return 0; 21443b72c2feSMugunthan V N 21453b72c2feSMugunthan V N clean_vlan_ucast: 21462a05a622SIvan Khoronzhuk cpsw_ale_del_ucast(cpsw->ale, priv->mac_addr, 214771a2cbb7SGrygorii Strashko HOST_PORT_NUM, ALE_VLAN, vid); 21483b72c2feSMugunthan V N clean_vid: 21492a05a622SIvan Khoronzhuk cpsw_ale_del_vlan(cpsw->ale, vid, 0); 21503b72c2feSMugunthan V N return ret; 21513b72c2feSMugunthan V N } 21523b72c2feSMugunthan V N 21533b72c2feSMugunthan V N static int cpsw_ndo_vlan_rx_add_vid(struct net_device *ndev, 215480d5c368SPatrick McHardy __be16 proto, u16 vid) 21553b72c2feSMugunthan V N { 21563b72c2feSMugunthan V N struct cpsw_priv *priv = netdev_priv(ndev); 2157649a1688SIvan Khoronzhuk struct cpsw_common *cpsw = priv->cpsw; 2158a6c5d14fSGrygorii Strashko int ret; 21593b72c2feSMugunthan V N 2160606f3993SIvan Khoronzhuk if (vid == cpsw->data.default_vlan) 21613b72c2feSMugunthan V N return 0; 21623b72c2feSMugunthan V N 216356e31bd8SIvan Khoronzhuk ret = pm_runtime_get_sync(cpsw->dev); 2164a6c5d14fSGrygorii Strashko if (ret < 0) { 216556e31bd8SIvan Khoronzhuk pm_runtime_put_noidle(cpsw->dev); 2166a6c5d14fSGrygorii Strashko return ret; 2167a6c5d14fSGrygorii Strashko } 2168a6c5d14fSGrygorii Strashko 2169606f3993SIvan Khoronzhuk if (cpsw->data.dual_emac) { 217002a54164SMugunthan V N /* In dual EMAC, reserved VLAN id should not be used for 217102a54164SMugunthan V N * creating VLAN interfaces as this can break the dual 217202a54164SMugunthan V N * EMAC port separation 217302a54164SMugunthan V N */ 217402a54164SMugunthan V N int i; 217502a54164SMugunthan V N 2176606f3993SIvan Khoronzhuk for (i = 0; i < cpsw->data.slaves; i++) { 2177803c4f64SIvan Khoronzhuk if (vid == cpsw->slaves[i].port_vlan) { 2178803c4f64SIvan Khoronzhuk ret = -EINVAL; 2179803c4f64SIvan Khoronzhuk goto err; 2180803c4f64SIvan Khoronzhuk } 218102a54164SMugunthan V N } 218202a54164SMugunthan V N } 218302a54164SMugunthan V N 21843b72c2feSMugunthan V N dev_info(priv->dev, "Adding vlanid %d to vlan filter\n", vid); 2185a6c5d14fSGrygorii Strashko ret = cpsw_add_vlan_ale_entry(priv, vid); 2186803c4f64SIvan Khoronzhuk err: 218756e31bd8SIvan Khoronzhuk pm_runtime_put(cpsw->dev); 2188a6c5d14fSGrygorii Strashko return ret; 21893b72c2feSMugunthan V N } 21903b72c2feSMugunthan V N 21913b72c2feSMugunthan V N static int cpsw_ndo_vlan_rx_kill_vid(struct net_device *ndev, 219280d5c368SPatrick McHardy __be16 proto, u16 vid) 21933b72c2feSMugunthan V N { 21943b72c2feSMugunthan V N struct cpsw_priv *priv = netdev_priv(ndev); 2195649a1688SIvan Khoronzhuk struct cpsw_common *cpsw = priv->cpsw; 21963b72c2feSMugunthan V N int ret; 21973b72c2feSMugunthan V N 2198606f3993SIvan Khoronzhuk if (vid == cpsw->data.default_vlan) 21993b72c2feSMugunthan V N return 0; 22003b72c2feSMugunthan V N 220156e31bd8SIvan Khoronzhuk ret = pm_runtime_get_sync(cpsw->dev); 2202a6c5d14fSGrygorii Strashko if (ret < 0) { 220356e31bd8SIvan Khoronzhuk pm_runtime_put_noidle(cpsw->dev); 2204a6c5d14fSGrygorii Strashko return ret; 2205a6c5d14fSGrygorii Strashko } 2206a6c5d14fSGrygorii Strashko 2207606f3993SIvan Khoronzhuk if (cpsw->data.dual_emac) { 220802a54164SMugunthan V N int i; 220902a54164SMugunthan V N 2210606f3993SIvan Khoronzhuk for (i = 0; i < cpsw->data.slaves; i++) { 2211606f3993SIvan Khoronzhuk if (vid == cpsw->slaves[i].port_vlan) 2212803c4f64SIvan Khoronzhuk goto err; 221302a54164SMugunthan V N } 221402a54164SMugunthan V N } 221502a54164SMugunthan V N 22163b72c2feSMugunthan V N dev_info(priv->dev, "removing vlanid %d from vlan filter\n", vid); 22172a05a622SIvan Khoronzhuk ret = cpsw_ale_del_vlan(cpsw->ale, vid, 0); 2218be35b982SIvan Khoronzhuk ret |= cpsw_ale_del_ucast(cpsw->ale, priv->mac_addr, 221961f1cef9SGrygorii Strashko HOST_PORT_NUM, ALE_VLAN, vid); 2220be35b982SIvan Khoronzhuk ret |= cpsw_ale_del_mcast(cpsw->ale, priv->ndev->broadcast, 22213b72c2feSMugunthan V N 0, ALE_VLAN, vid); 222215180ecaSIvan Khoronzhuk ret |= cpsw_ale_flush_multicast(cpsw->ale, 0, vid); 2223803c4f64SIvan Khoronzhuk err: 222456e31bd8SIvan Khoronzhuk pm_runtime_put(cpsw->dev); 2225a6c5d14fSGrygorii Strashko return ret; 22263b72c2feSMugunthan V N } 22273b72c2feSMugunthan V N 222883fcad0cSIvan Khoronzhuk static int cpsw_ndo_set_tx_maxrate(struct net_device *ndev, int queue, u32 rate) 222983fcad0cSIvan Khoronzhuk { 223083fcad0cSIvan Khoronzhuk struct cpsw_priv *priv = netdev_priv(ndev); 223183fcad0cSIvan Khoronzhuk struct cpsw_common *cpsw = priv->cpsw; 223252986a2fSIvan Khoronzhuk struct cpsw_slave *slave; 223332b78d85SIvan Khoronzhuk u32 min_rate; 223483fcad0cSIvan Khoronzhuk u32 ch_rate; 223552986a2fSIvan Khoronzhuk int i, ret; 223683fcad0cSIvan Khoronzhuk 223783fcad0cSIvan Khoronzhuk ch_rate = netdev_get_tx_queue(ndev, queue)->tx_maxrate; 223883fcad0cSIvan Khoronzhuk if (ch_rate == rate) 223983fcad0cSIvan Khoronzhuk return 0; 224083fcad0cSIvan Khoronzhuk 224132b78d85SIvan Khoronzhuk ch_rate = rate * 1000; 224283fcad0cSIvan Khoronzhuk min_rate = cpdma_chan_get_min_rate(cpsw->dma); 224332b78d85SIvan Khoronzhuk if ((ch_rate < min_rate && ch_rate)) { 224432b78d85SIvan Khoronzhuk dev_err(priv->dev, "The channel rate cannot be less than %dMbps", 224583fcad0cSIvan Khoronzhuk min_rate); 224683fcad0cSIvan Khoronzhuk return -EINVAL; 224783fcad0cSIvan Khoronzhuk } 224883fcad0cSIvan Khoronzhuk 22490be01b8eSIvan Khoronzhuk if (rate > cpsw->speed) { 225032b78d85SIvan Khoronzhuk dev_err(priv->dev, "The channel rate cannot be more than 2Gbps"); 225132b78d85SIvan Khoronzhuk return -EINVAL; 225232b78d85SIvan Khoronzhuk } 225332b78d85SIvan Khoronzhuk 225483fcad0cSIvan Khoronzhuk ret = pm_runtime_get_sync(cpsw->dev); 225583fcad0cSIvan Khoronzhuk if (ret < 0) { 225683fcad0cSIvan Khoronzhuk pm_runtime_put_noidle(cpsw->dev); 225783fcad0cSIvan Khoronzhuk return ret; 225883fcad0cSIvan Khoronzhuk } 225983fcad0cSIvan Khoronzhuk 226032b78d85SIvan Khoronzhuk ret = cpdma_chan_set_rate(cpsw->txv[queue].ch, ch_rate); 226183fcad0cSIvan Khoronzhuk pm_runtime_put(cpsw->dev); 226232b78d85SIvan Khoronzhuk 226332b78d85SIvan Khoronzhuk if (ret) 226432b78d85SIvan Khoronzhuk return ret; 226532b78d85SIvan Khoronzhuk 226652986a2fSIvan Khoronzhuk /* update rates for slaves tx queues */ 226752986a2fSIvan Khoronzhuk for (i = 0; i < cpsw->data.slaves; i++) { 226852986a2fSIvan Khoronzhuk slave = &cpsw->slaves[i]; 226952986a2fSIvan Khoronzhuk if (!slave->ndev) 227052986a2fSIvan Khoronzhuk continue; 227152986a2fSIvan Khoronzhuk 227252986a2fSIvan Khoronzhuk netdev_get_tx_queue(slave->ndev, queue)->tx_maxrate = rate; 227352986a2fSIvan Khoronzhuk } 227452986a2fSIvan Khoronzhuk 22759763a891SGrygorii Strashko cpsw_split_res(cpsw); 227683fcad0cSIvan Khoronzhuk return ret; 227783fcad0cSIvan Khoronzhuk } 227883fcad0cSIvan Khoronzhuk 22797929a668SIvan Khoronzhuk static int cpsw_set_mqprio(struct net_device *ndev, void *type_data) 22807929a668SIvan Khoronzhuk { 22817929a668SIvan Khoronzhuk struct tc_mqprio_qopt_offload *mqprio = type_data; 22827929a668SIvan Khoronzhuk struct cpsw_priv *priv = netdev_priv(ndev); 22837929a668SIvan Khoronzhuk struct cpsw_common *cpsw = priv->cpsw; 22847929a668SIvan Khoronzhuk int fifo, num_tc, count, offset; 22857929a668SIvan Khoronzhuk struct cpsw_slave *slave; 22867929a668SIvan Khoronzhuk u32 tx_prio_map = 0; 22877929a668SIvan Khoronzhuk int i, tc, ret; 22887929a668SIvan Khoronzhuk 22897929a668SIvan Khoronzhuk num_tc = mqprio->qopt.num_tc; 22907929a668SIvan Khoronzhuk if (num_tc > CPSW_TC_NUM) 22917929a668SIvan Khoronzhuk return -EINVAL; 22927929a668SIvan Khoronzhuk 22937929a668SIvan Khoronzhuk if (mqprio->mode != TC_MQPRIO_MODE_DCB) 22947929a668SIvan Khoronzhuk return -EINVAL; 22957929a668SIvan Khoronzhuk 22967929a668SIvan Khoronzhuk ret = pm_runtime_get_sync(cpsw->dev); 22977929a668SIvan Khoronzhuk if (ret < 0) { 22987929a668SIvan Khoronzhuk pm_runtime_put_noidle(cpsw->dev); 22997929a668SIvan Khoronzhuk return ret; 23007929a668SIvan Khoronzhuk } 23017929a668SIvan Khoronzhuk 23027929a668SIvan Khoronzhuk if (num_tc) { 23037929a668SIvan Khoronzhuk for (i = 0; i < 8; i++) { 23047929a668SIvan Khoronzhuk tc = mqprio->qopt.prio_tc_map[i]; 23057929a668SIvan Khoronzhuk fifo = cpsw_tc_to_fifo(tc, num_tc); 23067929a668SIvan Khoronzhuk tx_prio_map |= fifo << (4 * i); 23077929a668SIvan Khoronzhuk } 23087929a668SIvan Khoronzhuk 23097929a668SIvan Khoronzhuk netdev_set_num_tc(ndev, num_tc); 23107929a668SIvan Khoronzhuk for (i = 0; i < num_tc; i++) { 23117929a668SIvan Khoronzhuk count = mqprio->qopt.count[i]; 23127929a668SIvan Khoronzhuk offset = mqprio->qopt.offset[i]; 23137929a668SIvan Khoronzhuk netdev_set_tc_queue(ndev, i, count, offset); 23147929a668SIvan Khoronzhuk } 23157929a668SIvan Khoronzhuk } 23167929a668SIvan Khoronzhuk 23177929a668SIvan Khoronzhuk if (!mqprio->qopt.hw) { 23187929a668SIvan Khoronzhuk /* restore default configuration */ 23197929a668SIvan Khoronzhuk netdev_reset_tc(ndev); 23207929a668SIvan Khoronzhuk tx_prio_map = TX_PRIORITY_MAPPING; 23217929a668SIvan Khoronzhuk } 23227929a668SIvan Khoronzhuk 23237929a668SIvan Khoronzhuk priv->mqprio_hw = mqprio->qopt.hw; 23247929a668SIvan Khoronzhuk 23257929a668SIvan Khoronzhuk offset = cpsw->version == CPSW_VERSION_1 ? 23267929a668SIvan Khoronzhuk CPSW1_TX_PRI_MAP : CPSW2_TX_PRI_MAP; 23277929a668SIvan Khoronzhuk 23287929a668SIvan Khoronzhuk slave = &cpsw->slaves[cpsw_slave_index(cpsw, priv)]; 23297929a668SIvan Khoronzhuk slave_write(slave, tx_prio_map, offset); 23307929a668SIvan Khoronzhuk 23317929a668SIvan Khoronzhuk pm_runtime_put_sync(cpsw->dev); 23327929a668SIvan Khoronzhuk 23337929a668SIvan Khoronzhuk return 0; 23347929a668SIvan Khoronzhuk } 23357929a668SIvan Khoronzhuk 23367929a668SIvan Khoronzhuk static int cpsw_ndo_setup_tc(struct net_device *ndev, enum tc_setup_type type, 23377929a668SIvan Khoronzhuk void *type_data) 23387929a668SIvan Khoronzhuk { 23397929a668SIvan Khoronzhuk switch (type) { 234057d90148SIvan Khoronzhuk case TC_SETUP_QDISC_CBS: 234157d90148SIvan Khoronzhuk return cpsw_set_cbs(ndev, type_data); 234257d90148SIvan Khoronzhuk 23437929a668SIvan Khoronzhuk case TC_SETUP_QDISC_MQPRIO: 23447929a668SIvan Khoronzhuk return cpsw_set_mqprio(ndev, type_data); 23457929a668SIvan Khoronzhuk 23467929a668SIvan Khoronzhuk default: 23477929a668SIvan Khoronzhuk return -EOPNOTSUPP; 23487929a668SIvan Khoronzhuk } 23497929a668SIvan Khoronzhuk } 23507929a668SIvan Khoronzhuk 23519ed4050cSIvan Khoronzhuk static int cpsw_xdp_prog_setup(struct cpsw_priv *priv, struct netdev_bpf *bpf) 23529ed4050cSIvan Khoronzhuk { 23539ed4050cSIvan Khoronzhuk struct bpf_prog *prog = bpf->prog; 23549ed4050cSIvan Khoronzhuk 23559ed4050cSIvan Khoronzhuk if (!priv->xdpi.prog && !prog) 23569ed4050cSIvan Khoronzhuk return 0; 23579ed4050cSIvan Khoronzhuk 23589ed4050cSIvan Khoronzhuk if (!xdp_attachment_flags_ok(&priv->xdpi, bpf)) 23599ed4050cSIvan Khoronzhuk return -EBUSY; 23609ed4050cSIvan Khoronzhuk 23619ed4050cSIvan Khoronzhuk WRITE_ONCE(priv->xdp_prog, prog); 23629ed4050cSIvan Khoronzhuk 23639ed4050cSIvan Khoronzhuk xdp_attachment_setup(&priv->xdpi, bpf); 23649ed4050cSIvan Khoronzhuk 23659ed4050cSIvan Khoronzhuk return 0; 23669ed4050cSIvan Khoronzhuk } 23679ed4050cSIvan Khoronzhuk 23689ed4050cSIvan Khoronzhuk static int cpsw_ndo_bpf(struct net_device *ndev, struct netdev_bpf *bpf) 23699ed4050cSIvan Khoronzhuk { 23709ed4050cSIvan Khoronzhuk struct cpsw_priv *priv = netdev_priv(ndev); 23719ed4050cSIvan Khoronzhuk 23729ed4050cSIvan Khoronzhuk switch (bpf->command) { 23739ed4050cSIvan Khoronzhuk case XDP_SETUP_PROG: 23749ed4050cSIvan Khoronzhuk return cpsw_xdp_prog_setup(priv, bpf); 23759ed4050cSIvan Khoronzhuk 23769ed4050cSIvan Khoronzhuk case XDP_QUERY_PROG: 23779ed4050cSIvan Khoronzhuk return xdp_attachment_query(&priv->xdpi, bpf); 23789ed4050cSIvan Khoronzhuk 23799ed4050cSIvan Khoronzhuk default: 23809ed4050cSIvan Khoronzhuk return -EINVAL; 23819ed4050cSIvan Khoronzhuk } 23829ed4050cSIvan Khoronzhuk } 23839ed4050cSIvan Khoronzhuk 23849ed4050cSIvan Khoronzhuk static int cpsw_ndo_xdp_xmit(struct net_device *ndev, int n, 23859ed4050cSIvan Khoronzhuk struct xdp_frame **frames, u32 flags) 23869ed4050cSIvan Khoronzhuk { 23879ed4050cSIvan Khoronzhuk struct cpsw_priv *priv = netdev_priv(ndev); 23889ed4050cSIvan Khoronzhuk struct xdp_frame *xdpf; 23899ed4050cSIvan Khoronzhuk int i, drops = 0; 23909ed4050cSIvan Khoronzhuk 23919ed4050cSIvan Khoronzhuk if (unlikely(flags & ~XDP_XMIT_FLAGS_MASK)) 23929ed4050cSIvan Khoronzhuk return -EINVAL; 23939ed4050cSIvan Khoronzhuk 23949ed4050cSIvan Khoronzhuk for (i = 0; i < n; i++) { 23959ed4050cSIvan Khoronzhuk xdpf = frames[i]; 23969ed4050cSIvan Khoronzhuk if (xdpf->len < CPSW_MIN_PACKET_SIZE) { 23979ed4050cSIvan Khoronzhuk xdp_return_frame_rx_napi(xdpf); 23989ed4050cSIvan Khoronzhuk drops++; 23999ed4050cSIvan Khoronzhuk continue; 24009ed4050cSIvan Khoronzhuk } 24019ed4050cSIvan Khoronzhuk 24029ed4050cSIvan Khoronzhuk if (cpsw_xdp_tx_frame(priv, xdpf, NULL)) 24039ed4050cSIvan Khoronzhuk drops++; 24049ed4050cSIvan Khoronzhuk } 24059ed4050cSIvan Khoronzhuk 24069ed4050cSIvan Khoronzhuk return n - drops; 24079ed4050cSIvan Khoronzhuk } 24089ed4050cSIvan Khoronzhuk 2409026cc9c3SDavid S. Miller #ifdef CONFIG_NET_POLL_CONTROLLER 2410026cc9c3SDavid S. Miller static void cpsw_ndo_poll_controller(struct net_device *ndev) 2411026cc9c3SDavid S. Miller { 2412026cc9c3SDavid S. Miller struct cpsw_common *cpsw = ndev_to_cpsw(ndev); 2413026cc9c3SDavid S. Miller 2414026cc9c3SDavid S. Miller cpsw_intr_disable(cpsw); 2415026cc9c3SDavid S. Miller cpsw_rx_interrupt(cpsw->irqs_table[0], cpsw); 2416026cc9c3SDavid S. Miller cpsw_tx_interrupt(cpsw->irqs_table[1], cpsw); 2417026cc9c3SDavid S. Miller cpsw_intr_enable(cpsw); 2418026cc9c3SDavid S. Miller } 2419026cc9c3SDavid S. Miller #endif 2420026cc9c3SDavid S. Miller 2421df828598SMugunthan V N static const struct net_device_ops cpsw_netdev_ops = { 2422df828598SMugunthan V N .ndo_open = cpsw_ndo_open, 2423df828598SMugunthan V N .ndo_stop = cpsw_ndo_stop, 2424df828598SMugunthan V N .ndo_start_xmit = cpsw_ndo_start_xmit, 2425dcfd8d58SMugunthan V N .ndo_set_mac_address = cpsw_ndo_set_mac_address, 24262e5b38abSRichard Cochran .ndo_do_ioctl = cpsw_ndo_ioctl, 2427df828598SMugunthan V N .ndo_validate_addr = eth_validate_addr, 2428df828598SMugunthan V N .ndo_tx_timeout = cpsw_ndo_tx_timeout, 24295c50a856SMugunthan V N .ndo_set_rx_mode = cpsw_ndo_set_rx_mode, 243083fcad0cSIvan Khoronzhuk .ndo_set_tx_maxrate = cpsw_ndo_set_tx_maxrate, 2431df828598SMugunthan V N #ifdef CONFIG_NET_POLL_CONTROLLER 2432df828598SMugunthan V N .ndo_poll_controller = cpsw_ndo_poll_controller, 2433df828598SMugunthan V N #endif 24343b72c2feSMugunthan V N .ndo_vlan_rx_add_vid = cpsw_ndo_vlan_rx_add_vid, 24353b72c2feSMugunthan V N .ndo_vlan_rx_kill_vid = cpsw_ndo_vlan_rx_kill_vid, 24367929a668SIvan Khoronzhuk .ndo_setup_tc = cpsw_ndo_setup_tc, 24379ed4050cSIvan Khoronzhuk .ndo_bpf = cpsw_ndo_bpf, 24389ed4050cSIvan Khoronzhuk .ndo_xdp_xmit = cpsw_ndo_xdp_xmit, 2439df828598SMugunthan V N }; 2440df828598SMugunthan V N 2441df828598SMugunthan V N static void cpsw_get_drvinfo(struct net_device *ndev, 2442df828598SMugunthan V N struct ethtool_drvinfo *info) 2443df828598SMugunthan V N { 2444649a1688SIvan Khoronzhuk struct cpsw_common *cpsw = ndev_to_cpsw(ndev); 244556e31bd8SIvan Khoronzhuk struct platform_device *pdev = to_platform_device(cpsw->dev); 24467826d43fSJiri Pirko 244752c4f0ecSMugunthan V N strlcpy(info->driver, "cpsw", sizeof(info->driver)); 24487826d43fSJiri Pirko strlcpy(info->version, "1.0", sizeof(info->version)); 244956e31bd8SIvan Khoronzhuk strlcpy(info->bus_info, pdev->name, sizeof(info->bus_info)); 2450df828598SMugunthan V N } 2451df828598SMugunthan V N 24521923d6e4SMugunthan V N static int cpsw_set_pauseparam(struct net_device *ndev, 24531923d6e4SMugunthan V N struct ethtool_pauseparam *pause) 24541923d6e4SMugunthan V N { 24551923d6e4SMugunthan V N struct cpsw_priv *priv = netdev_priv(ndev); 24561923d6e4SMugunthan V N bool link; 24571923d6e4SMugunthan V N 24581923d6e4SMugunthan V N priv->rx_pause = pause->rx_pause ? true : false; 24591923d6e4SMugunthan V N priv->tx_pause = pause->tx_pause ? true : false; 24601923d6e4SMugunthan V N 24611923d6e4SMugunthan V N for_each_slave(priv, _cpsw_adjust_link, priv, &link); 24621923d6e4SMugunthan V N return 0; 24631923d6e4SMugunthan V N } 24641923d6e4SMugunthan V N 2465022d7ad7SIvan Khoronzhuk static int cpsw_set_channels(struct net_device *ndev, 2466022d7ad7SIvan Khoronzhuk struct ethtool_channels *chs) 2467022d7ad7SIvan Khoronzhuk { 2468c24eef28SGrygorii Strashko return cpsw_set_channels_common(ndev, chs, cpsw_rx_handler); 2469be034fc1SGrygorii Strashko } 2470be034fc1SGrygorii Strashko 2471df828598SMugunthan V N static const struct ethtool_ops cpsw_ethtool_ops = { 2472df828598SMugunthan V N .get_drvinfo = cpsw_get_drvinfo, 2473df828598SMugunthan V N .get_msglevel = cpsw_get_msglevel, 2474df828598SMugunthan V N .set_msglevel = cpsw_set_msglevel, 2475df828598SMugunthan V N .get_link = ethtool_op_get_link, 24762e5b38abSRichard Cochran .get_ts_info = cpsw_get_ts_info, 2477ff5b8ef2SMugunthan V N .get_coalesce = cpsw_get_coalesce, 2478ff5b8ef2SMugunthan V N .set_coalesce = cpsw_set_coalesce, 2479d9718546SMugunthan V N .get_sset_count = cpsw_get_sset_count, 2480d9718546SMugunthan V N .get_strings = cpsw_get_strings, 2481d9718546SMugunthan V N .get_ethtool_stats = cpsw_get_ethtool_stats, 24821923d6e4SMugunthan V N .get_pauseparam = cpsw_get_pauseparam, 24831923d6e4SMugunthan V N .set_pauseparam = cpsw_set_pauseparam, 2484d8a64420SMatus Ujhelyi .get_wol = cpsw_get_wol, 2485d8a64420SMatus Ujhelyi .set_wol = cpsw_set_wol, 248652c4f0ecSMugunthan V N .get_regs_len = cpsw_get_regs_len, 248752c4f0ecSMugunthan V N .get_regs = cpsw_get_regs, 24887898b1daSGrygorii Strashko .begin = cpsw_ethtool_op_begin, 24897898b1daSGrygorii Strashko .complete = cpsw_ethtool_op_complete, 2490ce52c744SIvan Khoronzhuk .get_channels = cpsw_get_channels, 2491ce52c744SIvan Khoronzhuk .set_channels = cpsw_set_channels, 24922479876dSPhilippe Reynes .get_link_ksettings = cpsw_get_link_ksettings, 24932479876dSPhilippe Reynes .set_link_ksettings = cpsw_set_link_ksettings, 2494a0909949SYegor Yefremov .get_eee = cpsw_get_eee, 2495a0909949SYegor Yefremov .set_eee = cpsw_set_eee, 24966bb10c2bSYegor Yefremov .nway_reset = cpsw_nway_reset, 2497be034fc1SGrygorii Strashko .get_ringparam = cpsw_get_ringparam, 2498be034fc1SGrygorii Strashko .set_ringparam = cpsw_set_ringparam, 2499df828598SMugunthan V N }; 2500df828598SMugunthan V N 2501552165bcSDavid Rivshin static int cpsw_probe_dt(struct cpsw_platform_data *data, 25022eb32b0aSMugunthan V N struct platform_device *pdev) 25032eb32b0aSMugunthan V N { 25042eb32b0aSMugunthan V N struct device_node *node = pdev->dev.of_node; 25052eb32b0aSMugunthan V N struct device_node *slave_node; 25062eb32b0aSMugunthan V N int i = 0, ret; 25072eb32b0aSMugunthan V N u32 prop; 25082eb32b0aSMugunthan V N 25092eb32b0aSMugunthan V N if (!node) 25102eb32b0aSMugunthan V N return -EINVAL; 25112eb32b0aSMugunthan V N 25122eb32b0aSMugunthan V N if (of_property_read_u32(node, "slaves", &prop)) { 251388c99ff6SGeorge Cherian dev_err(&pdev->dev, "Missing slaves property in the DT.\n"); 25142eb32b0aSMugunthan V N return -EINVAL; 25152eb32b0aSMugunthan V N } 25162eb32b0aSMugunthan V N data->slaves = prop; 25172eb32b0aSMugunthan V N 2518e86ac13bSMugunthan V N if (of_property_read_u32(node, "active_slave", &prop)) { 251988c99ff6SGeorge Cherian dev_err(&pdev->dev, "Missing active_slave property in the DT.\n"); 2520aa1a15e2SDaniel Mack return -EINVAL; 252178ca0b28SRichard Cochran } 2522e86ac13bSMugunthan V N data->active_slave = prop; 252378ca0b28SRichard Cochran 2524a86854d0SKees Cook data->slave_data = devm_kcalloc(&pdev->dev, 2525a86854d0SKees Cook data->slaves, 2526a86854d0SKees Cook sizeof(struct cpsw_slave_data), 2527b2adaca9SJoe Perches GFP_KERNEL); 2528b2adaca9SJoe Perches if (!data->slave_data) 2529aa1a15e2SDaniel Mack return -ENOMEM; 25302eb32b0aSMugunthan V N 25312eb32b0aSMugunthan V N if (of_property_read_u32(node, "cpdma_channels", &prop)) { 253288c99ff6SGeorge Cherian dev_err(&pdev->dev, "Missing cpdma_channels property in the DT.\n"); 2533aa1a15e2SDaniel Mack return -EINVAL; 25342eb32b0aSMugunthan V N } 25352eb32b0aSMugunthan V N data->channels = prop; 25362eb32b0aSMugunthan V N 25372eb32b0aSMugunthan V N if (of_property_read_u32(node, "ale_entries", &prop)) { 253888c99ff6SGeorge Cherian dev_err(&pdev->dev, "Missing ale_entries property in the DT.\n"); 2539aa1a15e2SDaniel Mack return -EINVAL; 25402eb32b0aSMugunthan V N } 25412eb32b0aSMugunthan V N data->ale_entries = prop; 25422eb32b0aSMugunthan V N 25432eb32b0aSMugunthan V N if (of_property_read_u32(node, "bd_ram_size", &prop)) { 254488c99ff6SGeorge Cherian dev_err(&pdev->dev, "Missing bd_ram_size property in the DT.\n"); 2545aa1a15e2SDaniel Mack return -EINVAL; 25462eb32b0aSMugunthan V N } 25472eb32b0aSMugunthan V N data->bd_ram_size = prop; 25482eb32b0aSMugunthan V N 25492eb32b0aSMugunthan V N if (of_property_read_u32(node, "mac_control", &prop)) { 255088c99ff6SGeorge Cherian dev_err(&pdev->dev, "Missing mac_control property in the DT.\n"); 2551aa1a15e2SDaniel Mack return -EINVAL; 25522eb32b0aSMugunthan V N } 25532eb32b0aSMugunthan V N data->mac_control = prop; 25542eb32b0aSMugunthan V N 2555281abd96SMarkus Pargmann if (of_property_read_bool(node, "dual_emac")) 2556281abd96SMarkus Pargmann data->dual_emac = 1; 2557d9ba8f9eSMugunthan V N 25581fb19aa7SVaibhav Hiremath /* 25591fb19aa7SVaibhav Hiremath * Populate all the child nodes here... 25601fb19aa7SVaibhav Hiremath */ 25611fb19aa7SVaibhav Hiremath ret = of_platform_populate(node, NULL, NULL, &pdev->dev); 25621fb19aa7SVaibhav Hiremath /* We do not want to force this, as in some cases may not have child */ 25631fb19aa7SVaibhav Hiremath if (ret) 256488c99ff6SGeorge Cherian dev_warn(&pdev->dev, "Doesn't have any child node\n"); 25651fb19aa7SVaibhav Hiremath 25668658aaf2SBen Hutchings for_each_available_child_of_node(node, slave_node) { 2567549985eeSRichard Cochran struct cpsw_slave_data *slave_data = data->slave_data + i; 2568549985eeSRichard Cochran const void *mac_addr = NULL; 2569549985eeSRichard Cochran int lenp; 2570549985eeSRichard Cochran const __be32 *parp; 2571549985eeSRichard Cochran 2572f468b10eSMarkus Pargmann /* This is no slave child node, continue */ 2573bf5849f1SRob Herring if (!of_node_name_eq(slave_node, "slave")) 2574f468b10eSMarkus Pargmann continue; 2575f468b10eSMarkus Pargmann 25763ff18849SGrygorii Strashko slave_data->ifphy = devm_of_phy_get(&pdev->dev, slave_node, 25773ff18849SGrygorii Strashko NULL); 25783ff18849SGrygorii Strashko if (!IS_ENABLED(CONFIG_TI_CPSW_PHY_SEL) && 25793ff18849SGrygorii Strashko IS_ERR(slave_data->ifphy)) { 25803ff18849SGrygorii Strashko ret = PTR_ERR(slave_data->ifphy); 25813ff18849SGrygorii Strashko dev_err(&pdev->dev, 25823ff18849SGrygorii Strashko "%d: Error retrieving port phy: %d\n", i, ret); 25833cd6e20fSNishka Dasgupta goto err_node_put; 25843ff18849SGrygorii Strashko } 25853ff18849SGrygorii Strashko 2586337d1727SMarek Vasut slave_data->slave_node = slave_node; 2587552165bcSDavid Rivshin slave_data->phy_node = of_parse_phandle(slave_node, 2588552165bcSDavid Rivshin "phy-handle", 0); 2589f1eea5c1SDavid Rivshin parp = of_get_property(slave_node, "phy_id", &lenp); 2590ae092b5bSDavid Rivshin if (slave_data->phy_node) { 2591ae092b5bSDavid Rivshin dev_dbg(&pdev->dev, 2592f7ce9103SRob Herring "slave[%d] using phy-handle=\"%pOF\"\n", 2593f7ce9103SRob Herring i, slave_data->phy_node); 2594ae092b5bSDavid Rivshin } else if (of_phy_is_fixed_link(slave_node)) { 2595dfc0a6d3SDavid Rivshin /* In the case of a fixed PHY, the DT node associated 2596dfc0a6d3SDavid Rivshin * to the PHY is the Ethernet MAC DT node. 2597dfc0a6d3SDavid Rivshin */ 25981f71e8c9SMarkus Brunner ret = of_phy_register_fixed_link(slave_node); 259923a09873SJohan Hovold if (ret) { 260023a09873SJohan Hovold if (ret != -EPROBE_DEFER) 260123a09873SJohan Hovold dev_err(&pdev->dev, "failed to register fixed-link phy: %d\n", ret); 26023cd6e20fSNishka Dasgupta goto err_node_put; 260323a09873SJohan Hovold } 260406cd6d6eSDavid Rivshin slave_data->phy_node = of_node_get(slave_node); 2605f1eea5c1SDavid Rivshin } else if (parp) { 2606f1eea5c1SDavid Rivshin u32 phyid; 2607f1eea5c1SDavid Rivshin struct device_node *mdio_node; 2608f1eea5c1SDavid Rivshin struct platform_device *mdio; 2609f1eea5c1SDavid Rivshin 2610f1eea5c1SDavid Rivshin if (lenp != (sizeof(__be32) * 2)) { 2611f1eea5c1SDavid Rivshin dev_err(&pdev->dev, "Invalid slave[%d] phy_id property\n", i); 261247276fccSMugunthan V N goto no_phy_slave; 2613549985eeSRichard Cochran } 2614549985eeSRichard Cochran mdio_node = of_find_node_by_phandle(be32_to_cpup(parp)); 2615549985eeSRichard Cochran phyid = be32_to_cpup(parp+1); 2616549985eeSRichard Cochran mdio = of_find_device_by_node(mdio_node); 261760e71ab5SJohan Hovold of_node_put(mdio_node); 26186954cc1fSJohan Hovold if (!mdio) { 261956fdb2e0SMarkus Pargmann dev_err(&pdev->dev, "Missing mdio platform device\n"); 26203cd6e20fSNishka Dasgupta ret = -EINVAL; 26213cd6e20fSNishka Dasgupta goto err_node_put; 26226954cc1fSJohan Hovold } 2623549985eeSRichard Cochran snprintf(slave_data->phy_id, sizeof(slave_data->phy_id), 2624549985eeSRichard Cochran PHY_ID_FMT, mdio->name, phyid); 262586e1d5adSJohan Hovold put_device(&mdio->dev); 2626f1eea5c1SDavid Rivshin } else { 2627ae092b5bSDavid Rivshin dev_err(&pdev->dev, 2628ae092b5bSDavid Rivshin "No slave[%d] phy_id, phy-handle, or fixed-link property\n", 2629ae092b5bSDavid Rivshin i); 2630f1eea5c1SDavid Rivshin goto no_phy_slave; 2631f1eea5c1SDavid Rivshin } 26320c65b2b9SAndrew Lunn ret = of_get_phy_mode(slave_node, &slave_data->phy_if); 26330c65b2b9SAndrew Lunn if (ret) { 263447276fccSMugunthan V N dev_err(&pdev->dev, "Missing or malformed slave[%d] phy-mode property\n", 263547276fccSMugunthan V N i); 26363cd6e20fSNishka Dasgupta goto err_node_put; 263747276fccSMugunthan V N } 263847276fccSMugunthan V N 263947276fccSMugunthan V N no_phy_slave: 2640549985eeSRichard Cochran mac_addr = of_get_mac_address(slave_node); 2641a51645f7SPetr Štetiar if (!IS_ERR(mac_addr)) { 26422d2924afSPetr Štetiar ether_addr_copy(slave_data->mac_addr, mac_addr); 26430ba517b1SMarkus Pargmann } else { 2644b6745f6eSMugunthan V N ret = ti_cm_get_macid(&pdev->dev, i, 26450ba517b1SMarkus Pargmann slave_data->mac_addr); 26460ba517b1SMarkus Pargmann if (ret) 26473cd6e20fSNishka Dasgupta goto err_node_put; 26480ba517b1SMarkus Pargmann } 2649d9ba8f9eSMugunthan V N if (data->dual_emac) { 265091c4166cSMugunthan V N if (of_property_read_u32(slave_node, "dual_emac_res_vlan", 2651d9ba8f9eSMugunthan V N &prop)) { 265288c99ff6SGeorge Cherian dev_err(&pdev->dev, "Missing dual_emac_res_vlan in DT.\n"); 2653d9ba8f9eSMugunthan V N slave_data->dual_emac_res_vlan = i+1; 265488c99ff6SGeorge Cherian dev_err(&pdev->dev, "Using %d as Reserved VLAN for %d slave\n", 2655d9ba8f9eSMugunthan V N slave_data->dual_emac_res_vlan, i); 2656d9ba8f9eSMugunthan V N } else { 2657d9ba8f9eSMugunthan V N slave_data->dual_emac_res_vlan = prop; 2658d9ba8f9eSMugunthan V N } 2659d9ba8f9eSMugunthan V N } 2660d9ba8f9eSMugunthan V N 2661549985eeSRichard Cochran i++; 26623cd6e20fSNishka Dasgupta if (i == data->slaves) { 26633cd6e20fSNishka Dasgupta ret = 0; 26643cd6e20fSNishka Dasgupta goto err_node_put; 26653cd6e20fSNishka Dasgupta } 2666549985eeSRichard Cochran } 2667549985eeSRichard Cochran 26682eb32b0aSMugunthan V N return 0; 26693cd6e20fSNishka Dasgupta 26703cd6e20fSNishka Dasgupta err_node_put: 26713cd6e20fSNishka Dasgupta of_node_put(slave_node); 26723cd6e20fSNishka Dasgupta return ret; 26732eb32b0aSMugunthan V N } 26742eb32b0aSMugunthan V N 2675a4e32b0dSJohan Hovold static void cpsw_remove_dt(struct platform_device *pdev) 2676a4e32b0dSJohan Hovold { 2677bfe59032SIvan Khoronzhuk struct cpsw_common *cpsw = platform_get_drvdata(pdev); 26788cbcc466SJohan Hovold struct cpsw_platform_data *data = &cpsw->data; 26798cbcc466SJohan Hovold struct device_node *node = pdev->dev.of_node; 26808cbcc466SJohan Hovold struct device_node *slave_node; 26818cbcc466SJohan Hovold int i = 0; 26828cbcc466SJohan Hovold 26838cbcc466SJohan Hovold for_each_available_child_of_node(node, slave_node) { 26848cbcc466SJohan Hovold struct cpsw_slave_data *slave_data = &data->slave_data[i]; 26858cbcc466SJohan Hovold 2686bf5849f1SRob Herring if (!of_node_name_eq(slave_node, "slave")) 26878cbcc466SJohan Hovold continue; 26888cbcc466SJohan Hovold 26893f65047cSJohan Hovold if (of_phy_is_fixed_link(slave_node)) 26903f65047cSJohan Hovold of_phy_deregister_fixed_link(slave_node); 26918cbcc466SJohan Hovold 26928cbcc466SJohan Hovold of_node_put(slave_data->phy_node); 26938cbcc466SJohan Hovold 26948cbcc466SJohan Hovold i++; 26953cd6e20fSNishka Dasgupta if (i == data->slaves) { 26963cd6e20fSNishka Dasgupta of_node_put(slave_node); 26978cbcc466SJohan Hovold break; 26988cbcc466SJohan Hovold } 26993cd6e20fSNishka Dasgupta } 27008cbcc466SJohan Hovold 2701a4e32b0dSJohan Hovold of_platform_depopulate(&pdev->dev); 2702a4e32b0dSJohan Hovold } 2703a4e32b0dSJohan Hovold 270456e31bd8SIvan Khoronzhuk static int cpsw_probe_dual_emac(struct cpsw_priv *priv) 2705d9ba8f9eSMugunthan V N { 2706606f3993SIvan Khoronzhuk struct cpsw_common *cpsw = priv->cpsw; 2707606f3993SIvan Khoronzhuk struct cpsw_platform_data *data = &cpsw->data; 2708d9ba8f9eSMugunthan V N struct net_device *ndev; 2709d9ba8f9eSMugunthan V N struct cpsw_priv *priv_sl2; 2710e38b5a3dSIvan Khoronzhuk int ret = 0; 2711d9ba8f9eSMugunthan V N 2712d183a942SGrygorii Strashko ndev = devm_alloc_etherdev_mqs(cpsw->dev, sizeof(struct cpsw_priv), 2713d183a942SGrygorii Strashko CPSW_MAX_QUEUES, CPSW_MAX_QUEUES); 2714d9ba8f9eSMugunthan V N if (!ndev) { 271556e31bd8SIvan Khoronzhuk dev_err(cpsw->dev, "cpsw: error allocating net_device\n"); 2716d9ba8f9eSMugunthan V N return -ENOMEM; 2717d9ba8f9eSMugunthan V N } 2718d9ba8f9eSMugunthan V N 2719d9ba8f9eSMugunthan V N priv_sl2 = netdev_priv(ndev); 2720606f3993SIvan Khoronzhuk priv_sl2->cpsw = cpsw; 2721d9ba8f9eSMugunthan V N priv_sl2->ndev = ndev; 2722d9ba8f9eSMugunthan V N priv_sl2->dev = &ndev->dev; 2723d9ba8f9eSMugunthan V N priv_sl2->msg_enable = netif_msg_init(debug_level, CPSW_DEBUG); 2724d9ba8f9eSMugunthan V N 2725d9ba8f9eSMugunthan V N if (is_valid_ether_addr(data->slave_data[1].mac_addr)) { 2726d9ba8f9eSMugunthan V N memcpy(priv_sl2->mac_addr, data->slave_data[1].mac_addr, 2727d9ba8f9eSMugunthan V N ETH_ALEN); 272856e31bd8SIvan Khoronzhuk dev_info(cpsw->dev, "cpsw: Detected MACID = %pM\n", 272956e31bd8SIvan Khoronzhuk priv_sl2->mac_addr); 2730d9ba8f9eSMugunthan V N } else { 27316c1f0a1fSJoe Perches eth_random_addr(priv_sl2->mac_addr); 273256e31bd8SIvan Khoronzhuk dev_info(cpsw->dev, "cpsw: Random MACID = %pM\n", 273356e31bd8SIvan Khoronzhuk priv_sl2->mac_addr); 2734d9ba8f9eSMugunthan V N } 2735d9ba8f9eSMugunthan V N memcpy(ndev->dev_addr, priv_sl2->mac_addr, ETH_ALEN); 2736d9ba8f9eSMugunthan V N 2737d9ba8f9eSMugunthan V N priv_sl2->emac_port = 1; 2738606f3993SIvan Khoronzhuk cpsw->slaves[1].ndev = ndev; 2739193736c8SIvan Khoronzhuk ndev->features |= NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_HW_VLAN_CTAG_RX; 2740d9ba8f9eSMugunthan V N 2741d9ba8f9eSMugunthan V N ndev->netdev_ops = &cpsw_netdev_ops; 27427ad24ea4SWilfried Klaebe ndev->ethtool_ops = &cpsw_ethtool_ops; 2743d9ba8f9eSMugunthan V N 2744d9ba8f9eSMugunthan V N /* register the network device */ 274556e31bd8SIvan Khoronzhuk SET_NETDEV_DEV(ndev, cpsw->dev); 2746337d1727SMarek Vasut ndev->dev.of_node = cpsw->slaves[1].data->slave_node; 2747d9ba8f9eSMugunthan V N ret = register_netdev(ndev); 2748d183a942SGrygorii Strashko if (ret) 274956e31bd8SIvan Khoronzhuk dev_err(cpsw->dev, "cpsw: error registering net device\n"); 2750d9ba8f9eSMugunthan V N 2751d9ba8f9eSMugunthan V N return ret; 2752d9ba8f9eSMugunthan V N } 2753d9ba8f9eSMugunthan V N 27547da11600SMugunthan V N static const struct of_device_id cpsw_of_mtable[] = { 27559611d6d6SIvan Khoronzhuk { .compatible = "ti,cpsw"}, 27569611d6d6SIvan Khoronzhuk { .compatible = "ti,am335x-cpsw"}, 27579611d6d6SIvan Khoronzhuk { .compatible = "ti,am4372-cpsw"}, 27589611d6d6SIvan Khoronzhuk { .compatible = "ti,dra7-cpsw"}, 27597da11600SMugunthan V N { /* sentinel */ }, 27607da11600SMugunthan V N }; 27617da11600SMugunthan V N MODULE_DEVICE_TABLE(of, cpsw_of_mtable); 27627da11600SMugunthan V N 27639611d6d6SIvan Khoronzhuk static const struct soc_device_attribute cpsw_soc_devices[] = { 27649611d6d6SIvan Khoronzhuk { .family = "AM33xx", .revision = "ES1.0"}, 27659611d6d6SIvan Khoronzhuk { /* sentinel */ } 27669611d6d6SIvan Khoronzhuk }; 27679611d6d6SIvan Khoronzhuk 2768663e12e6SBill Pemberton static int cpsw_probe(struct platform_device *pdev) 2769df828598SMugunthan V N { 2770c8fb5668SGrygorii Strashko struct device *dev = &pdev->dev; 2771ef4183a1SIvan Khoronzhuk struct clk *clk; 2772d1bd9acfSSebastian Siewior struct cpsw_platform_data *data; 2773df828598SMugunthan V N struct net_device *ndev; 2774df828598SMugunthan V N struct cpsw_priv *priv; 2775aa1a15e2SDaniel Mack void __iomem *ss_regs; 2776c8ace62fSYueHaibing struct resource *ss_res; 27771d147ccbSMugunthan V N struct gpio_descs *mode; 27789611d6d6SIvan Khoronzhuk const struct soc_device_attribute *soc; 2779649a1688SIvan Khoronzhuk struct cpsw_common *cpsw; 2780e6a84624SGrygorii Strashko int ret = 0, ch; 27815087b915SFelipe Balbi int irq; 2782df828598SMugunthan V N 2783c8fb5668SGrygorii Strashko cpsw = devm_kzalloc(dev, sizeof(struct cpsw_common), GFP_KERNEL); 27843420ea88SJohan Hovold if (!cpsw) 27853420ea88SJohan Hovold return -ENOMEM; 27863420ea88SJohan Hovold 27872d683eaaSAntoine Tenart platform_set_drvdata(pdev, cpsw); 278851a95337SGrygorii Strashko cpsw_slave_index = cpsw_slave_index_priv; 278951a95337SGrygorii Strashko 2790c8fb5668SGrygorii Strashko cpsw->dev = dev; 2791649a1688SIvan Khoronzhuk 2792c8fb5668SGrygorii Strashko mode = devm_gpiod_get_array_optional(dev, "mode", GPIOD_OUT_LOW); 27931d147ccbSMugunthan V N if (IS_ERR(mode)) { 27941d147ccbSMugunthan V N ret = PTR_ERR(mode); 2795c8fb5668SGrygorii Strashko dev_err(dev, "gpio request failed, ret %d\n", ret); 2796d183a942SGrygorii Strashko return ret; 27971d147ccbSMugunthan V N } 27981d147ccbSMugunthan V N 279983a8471bSGrygorii Strashko clk = devm_clk_get(dev, "fck"); 280083a8471bSGrygorii Strashko if (IS_ERR(clk)) { 2801ac97a359SYueHaibing ret = PTR_ERR(clk); 280283a8471bSGrygorii Strashko dev_err(dev, "fck is not found %d\n", ret); 280383a8471bSGrygorii Strashko return ret; 280483a8471bSGrygorii Strashko } 280583a8471bSGrygorii Strashko cpsw->bus_freq_mhz = clk_get_rate(clk) / 1000000; 280683a8471bSGrygorii Strashko 280783a8471bSGrygorii Strashko ss_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); 280883a8471bSGrygorii Strashko ss_regs = devm_ioremap_resource(dev, ss_res); 280983a8471bSGrygorii Strashko if (IS_ERR(ss_regs)) 281083a8471bSGrygorii Strashko return PTR_ERR(ss_regs); 281183a8471bSGrygorii Strashko cpsw->regs = ss_regs; 281283a8471bSGrygorii Strashko 2813c8ace62fSYueHaibing cpsw->wr_regs = devm_platform_ioremap_resource(pdev, 1); 281483a8471bSGrygorii Strashko if (IS_ERR(cpsw->wr_regs)) 281583a8471bSGrygorii Strashko return PTR_ERR(cpsw->wr_regs); 281683a8471bSGrygorii Strashko 281783a8471bSGrygorii Strashko /* RX IRQ */ 281883a8471bSGrygorii Strashko irq = platform_get_irq(pdev, 1); 281983a8471bSGrygorii Strashko if (irq < 0) 282083a8471bSGrygorii Strashko return irq; 282183a8471bSGrygorii Strashko cpsw->irqs_table[0] = irq; 282283a8471bSGrygorii Strashko 282383a8471bSGrygorii Strashko /* TX IRQ */ 282483a8471bSGrygorii Strashko irq = platform_get_irq(pdev, 2); 282583a8471bSGrygorii Strashko if (irq < 0) 282683a8471bSGrygorii Strashko return irq; 282783a8471bSGrygorii Strashko cpsw->irqs_table[1] = irq; 282883a8471bSGrygorii Strashko 28291fb19aa7SVaibhav Hiremath /* 28301fb19aa7SVaibhav Hiremath * This may be required here for child devices. 28311fb19aa7SVaibhav Hiremath */ 2832c8fb5668SGrygorii Strashko pm_runtime_enable(dev); 28331fb19aa7SVaibhav Hiremath 2834a4e32b0dSJohan Hovold /* Need to enable clocks with runtime PM api to access module 2835a4e32b0dSJohan Hovold * registers 2836a4e32b0dSJohan Hovold */ 2837c8fb5668SGrygorii Strashko ret = pm_runtime_get_sync(dev); 2838a4e32b0dSJohan Hovold if (ret < 0) { 2839c8fb5668SGrygorii Strashko pm_runtime_put_noidle(dev); 2840aa1a15e2SDaniel Mack goto clean_runtime_disable_ret; 28412eb32b0aSMugunthan V N } 2842a4e32b0dSJohan Hovold 284323a09873SJohan Hovold ret = cpsw_probe_dt(&cpsw->data, pdev); 284423a09873SJohan Hovold if (ret) 2845a4e32b0dSJohan Hovold goto clean_dt_ret; 284623a09873SJohan Hovold 284783a8471bSGrygorii Strashko soc = soc_device_match(cpsw_soc_devices); 284883a8471bSGrygorii Strashko if (soc) 284983a8471bSGrygorii Strashko cpsw->quirk_irq = 1; 285083a8471bSGrygorii Strashko 2851606f3993SIvan Khoronzhuk data = &cpsw->data; 2852c8fb5668SGrygorii Strashko cpsw->slaves = devm_kcalloc(dev, 2853a86854d0SKees Cook data->slaves, sizeof(struct cpsw_slave), 2854df828598SMugunthan V N GFP_KERNEL); 2855606f3993SIvan Khoronzhuk if (!cpsw->slaves) { 2856aa1a15e2SDaniel Mack ret = -ENOMEM; 2857a4e32b0dSJohan Hovold goto clean_dt_ret; 2858df828598SMugunthan V N } 2859df828598SMugunthan V N 286083a8471bSGrygorii Strashko cpsw->rx_packet_max = max(rx_packet_max, CPSW_MAX_PACKET_SIZE); 2861c24eef28SGrygorii Strashko cpsw->descs_pool_size = descs_pool_size; 2862df828598SMugunthan V N 2863e6a84624SGrygorii Strashko ret = cpsw_init_common(cpsw, ss_regs, ale_ageout, 2864e6a84624SGrygorii Strashko ss_res->start + CPSW2_BD_OFFSET, 2865e6a84624SGrygorii Strashko descs_pool_size); 2866e6a84624SGrygorii Strashko if (ret) 2867a4e32b0dSJohan Hovold goto clean_dt_ret; 28688a2c9a5aSGrygorii Strashko 286983a8471bSGrygorii Strashko ch = cpsw->quirk_irq ? 0 : 7; 287083a8471bSGrygorii Strashko cpsw->txv[0].ch = cpdma_chan_create(cpsw->dma, ch, cpsw_tx_handler, 0); 287183a8471bSGrygorii Strashko if (IS_ERR(cpsw->txv[0].ch)) { 287283a8471bSGrygorii Strashko dev_err(dev, "error initializing tx dma channel\n"); 287383a8471bSGrygorii Strashko ret = PTR_ERR(cpsw->txv[0].ch); 287483a8471bSGrygorii Strashko goto clean_cpts; 2875df828598SMugunthan V N } 2876df828598SMugunthan V N 287783a8471bSGrygorii Strashko cpsw->rxv[0].ch = cpdma_chan_create(cpsw->dma, 0, cpsw_rx_handler, 1); 287883a8471bSGrygorii Strashko if (IS_ERR(cpsw->rxv[0].ch)) { 287983a8471bSGrygorii Strashko dev_err(dev, "error initializing rx dma channel\n"); 288083a8471bSGrygorii Strashko ret = PTR_ERR(cpsw->rxv[0].ch); 288183a8471bSGrygorii Strashko goto clean_cpts; 288283a8471bSGrygorii Strashko } 288383a8471bSGrygorii Strashko cpsw_split_res(cpsw); 288483a8471bSGrygorii Strashko 288583a8471bSGrygorii Strashko /* setup netdev */ 288683a8471bSGrygorii Strashko ndev = devm_alloc_etherdev_mqs(dev, sizeof(struct cpsw_priv), 288783a8471bSGrygorii Strashko CPSW_MAX_QUEUES, CPSW_MAX_QUEUES); 288883a8471bSGrygorii Strashko if (!ndev) { 288983a8471bSGrygorii Strashko dev_err(dev, "error allocating net_device\n"); 289083a8471bSGrygorii Strashko goto clean_cpts; 289183a8471bSGrygorii Strashko } 289283a8471bSGrygorii Strashko 289383a8471bSGrygorii Strashko priv = netdev_priv(ndev); 289483a8471bSGrygorii Strashko priv->cpsw = cpsw; 289583a8471bSGrygorii Strashko priv->ndev = ndev; 289683a8471bSGrygorii Strashko priv->dev = dev; 289783a8471bSGrygorii Strashko priv->msg_enable = netif_msg_init(debug_level, CPSW_DEBUG); 289883a8471bSGrygorii Strashko priv->emac_port = 0; 289983a8471bSGrygorii Strashko 290083a8471bSGrygorii Strashko if (is_valid_ether_addr(data->slave_data[0].mac_addr)) { 290183a8471bSGrygorii Strashko memcpy(priv->mac_addr, data->slave_data[0].mac_addr, ETH_ALEN); 290283a8471bSGrygorii Strashko dev_info(dev, "Detected MACID = %pM\n", priv->mac_addr); 290383a8471bSGrygorii Strashko } else { 290483a8471bSGrygorii Strashko eth_random_addr(priv->mac_addr); 290583a8471bSGrygorii Strashko dev_info(dev, "Random MACID = %pM\n", priv->mac_addr); 290683a8471bSGrygorii Strashko } 290783a8471bSGrygorii Strashko 290883a8471bSGrygorii Strashko memcpy(ndev->dev_addr, priv->mac_addr, ETH_ALEN); 290983a8471bSGrygorii Strashko 291083a8471bSGrygorii Strashko cpsw->slaves[0].ndev = ndev; 291183a8471bSGrygorii Strashko 2912a3a41d2fSGrygorii Strashko ndev->features |= NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_HW_VLAN_CTAG_RX; 2913070f9c65SKeerthy 2914070f9c65SKeerthy ndev->netdev_ops = &cpsw_netdev_ops; 2915070f9c65SKeerthy ndev->ethtool_ops = &cpsw_ethtool_ops; 29169611d6d6SIvan Khoronzhuk netif_napi_add(ndev, &cpsw->napi_rx, 29179611d6d6SIvan Khoronzhuk cpsw->quirk_irq ? cpsw_rx_poll : cpsw_rx_mq_poll, 29189611d6d6SIvan Khoronzhuk CPSW_POLL_WEIGHT); 29199611d6d6SIvan Khoronzhuk netif_tx_napi_add(ndev, &cpsw->napi_tx, 29209611d6d6SIvan Khoronzhuk cpsw->quirk_irq ? cpsw_tx_poll : cpsw_tx_mq_poll, 29219611d6d6SIvan Khoronzhuk CPSW_POLL_WEIGHT); 2922070f9c65SKeerthy 2923070f9c65SKeerthy /* register the network device */ 2924c8fb5668SGrygorii Strashko SET_NETDEV_DEV(ndev, dev); 2925337d1727SMarek Vasut ndev->dev.of_node = cpsw->slaves[0].data->slave_node; 2926070f9c65SKeerthy ret = register_netdev(ndev); 2927070f9c65SKeerthy if (ret) { 2928c8fb5668SGrygorii Strashko dev_err(dev, "error registering net device\n"); 2929070f9c65SKeerthy ret = -ENODEV; 293083a8471bSGrygorii Strashko goto clean_cpts; 2931070f9c65SKeerthy } 2932070f9c65SKeerthy 2933070f9c65SKeerthy if (cpsw->data.dual_emac) { 2934070f9c65SKeerthy ret = cpsw_probe_dual_emac(priv); 2935070f9c65SKeerthy if (ret) { 2936070f9c65SKeerthy cpsw_err(priv, probe, "error probe slave 2 emac interface\n"); 2937070f9c65SKeerthy goto clean_unregister_netdev_ret; 2938070f9c65SKeerthy } 2939070f9c65SKeerthy } 2940070f9c65SKeerthy 2941c03abd84SFelipe Balbi /* Grab RX and TX IRQs. Note that we also have RX_THRESHOLD and 2942c03abd84SFelipe Balbi * MISC IRQs which are always kept disabled with this driver so 2943c03abd84SFelipe Balbi * we will not request them. 2944c03abd84SFelipe Balbi * 2945c03abd84SFelipe Balbi * If anyone wants to implement support for those, make sure to 2946c03abd84SFelipe Balbi * first request and append them to irqs_table array. 2947c03abd84SFelipe Balbi */ 294883a8471bSGrygorii Strashko ret = devm_request_irq(dev, cpsw->irqs_table[0], cpsw_rx_interrupt, 2949c8fb5668SGrygorii Strashko 0, dev_name(dev), cpsw); 29505087b915SFelipe Balbi if (ret < 0) { 2951c8fb5668SGrygorii Strashko dev_err(dev, "error attaching irq (%d)\n", ret); 295283a8471bSGrygorii Strashko goto clean_unregister_netdev_ret; 2953df828598SMugunthan V N } 2954df828598SMugunthan V N 29555087b915SFelipe Balbi 295683a8471bSGrygorii Strashko ret = devm_request_irq(dev, cpsw->irqs_table[1], cpsw_tx_interrupt, 2957dbc4ec52SIvan Khoronzhuk 0, dev_name(&pdev->dev), cpsw); 29585087b915SFelipe Balbi if (ret < 0) { 2959c8fb5668SGrygorii Strashko dev_err(dev, "error attaching irq (%d)\n", ret); 296083a8471bSGrygorii Strashko goto clean_unregister_netdev_ret; 29615087b915SFelipe Balbi } 2962c2b32e58SDaniel Mack 296390225bf0SGrygorii Strashko cpsw_notice(priv, probe, 296490225bf0SGrygorii Strashko "initialized device (regs %pa, irq %d, pool size %d)\n", 296583a8471bSGrygorii Strashko &ss_res->start, cpsw->irqs_table[0], descs_pool_size); 2966d9ba8f9eSMugunthan V N 2967c46ab7e0SJohan Hovold pm_runtime_put(&pdev->dev); 2968c46ab7e0SJohan Hovold 2969df828598SMugunthan V N return 0; 2970df828598SMugunthan V N 2971a7fe9d46SJohan Hovold clean_unregister_netdev_ret: 2972a7fe9d46SJohan Hovold unregister_netdev(ndev); 297383a8471bSGrygorii Strashko clean_cpts: 297483a8471bSGrygorii Strashko cpts_release(cpsw->cpts); 29752c836bd9SIvan Khoronzhuk cpdma_ctlr_destroy(cpsw->dma); 2976a4e32b0dSJohan Hovold clean_dt_ret: 2977a4e32b0dSJohan Hovold cpsw_remove_dt(pdev); 2978c46ab7e0SJohan Hovold pm_runtime_put_sync(&pdev->dev); 2979aa1a15e2SDaniel Mack clean_runtime_disable_ret: 2980f150bd7fSMugunthan V N pm_runtime_disable(&pdev->dev); 2981df828598SMugunthan V N return ret; 2982df828598SMugunthan V N } 2983df828598SMugunthan V N 2984663e12e6SBill Pemberton static int cpsw_remove(struct platform_device *pdev) 2985df828598SMugunthan V N { 2986bfe59032SIvan Khoronzhuk struct cpsw_common *cpsw = platform_get_drvdata(pdev); 2987bfe59032SIvan Khoronzhuk int i, ret; 29888a0b6dc9SGrygorii Strashko 29898a0b6dc9SGrygorii Strashko ret = pm_runtime_get_sync(&pdev->dev); 29908a0b6dc9SGrygorii Strashko if (ret < 0) { 29918a0b6dc9SGrygorii Strashko pm_runtime_put_noidle(&pdev->dev); 29928a0b6dc9SGrygorii Strashko return ret; 29938a0b6dc9SGrygorii Strashko } 2994df828598SMugunthan V N 2995bfe59032SIvan Khoronzhuk for (i = 0; i < cpsw->data.slaves; i++) 2996bfe59032SIvan Khoronzhuk if (cpsw->slaves[i].ndev) 2997bfe59032SIvan Khoronzhuk unregister_netdev(cpsw->slaves[i].ndev); 2998df828598SMugunthan V N 29998a2c9a5aSGrygorii Strashko cpts_release(cpsw->cpts); 30002c836bd9SIvan Khoronzhuk cpdma_ctlr_destroy(cpsw->dma); 3001a4e32b0dSJohan Hovold cpsw_remove_dt(pdev); 30028a0b6dc9SGrygorii Strashko pm_runtime_put_sync(&pdev->dev); 30038a0b6dc9SGrygorii Strashko pm_runtime_disable(&pdev->dev); 3004df828598SMugunthan V N return 0; 3005df828598SMugunthan V N } 3006df828598SMugunthan V N 30078963a504SGrygorii Strashko #ifdef CONFIG_PM_SLEEP 3008df828598SMugunthan V N static int cpsw_suspend(struct device *dev) 3009df828598SMugunthan V N { 30102f9b0d93SKeerthy struct cpsw_common *cpsw = dev_get_drvdata(dev); 3011618073e3SMugunthan V N int i; 3012618073e3SMugunthan V N 30132f9b0d93SKeerthy for (i = 0; i < cpsw->data.slaves; i++) 30142f9b0d93SKeerthy if (cpsw->slaves[i].ndev) 3015606f3993SIvan Khoronzhuk if (netif_running(cpsw->slaves[i].ndev)) 3016606f3993SIvan Khoronzhuk cpsw_ndo_stop(cpsw->slaves[i].ndev); 30171e7a2e21SDaniel Mack 3018739683b4SMugunthan V N /* Select sleep pin state */ 301956e31bd8SIvan Khoronzhuk pinctrl_pm_select_sleep_state(dev); 3020739683b4SMugunthan V N 3021df828598SMugunthan V N return 0; 3022df828598SMugunthan V N } 3023df828598SMugunthan V N 3024df828598SMugunthan V N static int cpsw_resume(struct device *dev) 3025df828598SMugunthan V N { 30262f9b0d93SKeerthy struct cpsw_common *cpsw = dev_get_drvdata(dev); 30272f9b0d93SKeerthy int i; 3028df828598SMugunthan V N 3029739683b4SMugunthan V N /* Select default pin state */ 303056e31bd8SIvan Khoronzhuk pinctrl_pm_select_default_state(dev); 3031739683b4SMugunthan V N 30324ccfd638SGrygorii Strashko /* shut up ASSERT_RTNL() warning in netif_set_real_num_tx/rx_queues */ 30334ccfd638SGrygorii Strashko rtnl_lock(); 3034618073e3SMugunthan V N 30352f9b0d93SKeerthy for (i = 0; i < cpsw->data.slaves; i++) 30362f9b0d93SKeerthy if (cpsw->slaves[i].ndev) 3037606f3993SIvan Khoronzhuk if (netif_running(cpsw->slaves[i].ndev)) 3038606f3993SIvan Khoronzhuk cpsw_ndo_open(cpsw->slaves[i].ndev); 30392f9b0d93SKeerthy 30404ccfd638SGrygorii Strashko rtnl_unlock(); 30414ccfd638SGrygorii Strashko 3042df828598SMugunthan V N return 0; 3043df828598SMugunthan V N } 30448963a504SGrygorii Strashko #endif 3045df828598SMugunthan V N 30468963a504SGrygorii Strashko static SIMPLE_DEV_PM_OPS(cpsw_pm_ops, cpsw_suspend, cpsw_resume); 3047df828598SMugunthan V N 3048df828598SMugunthan V N static struct platform_driver cpsw_driver = { 3049df828598SMugunthan V N .driver = { 3050df828598SMugunthan V N .name = "cpsw", 3051df828598SMugunthan V N .pm = &cpsw_pm_ops, 30521e5c76d4SSachin Kamat .of_match_table = cpsw_of_mtable, 3053df828598SMugunthan V N }, 3054df828598SMugunthan V N .probe = cpsw_probe, 3055663e12e6SBill Pemberton .remove = cpsw_remove, 3056df828598SMugunthan V N }; 3057df828598SMugunthan V N 30586fb3b6b5SGrygorii Strashko module_platform_driver(cpsw_driver); 3059df828598SMugunthan V N 3060df828598SMugunthan V N MODULE_LICENSE("GPL"); 3061df828598SMugunthan V N MODULE_AUTHOR("Cyril Chemparathy <cyril@ti.com>"); 3062df828598SMugunthan V N MODULE_AUTHOR("Mugunthan V N <mugunthanvnm@ti.com>"); 3063df828598SMugunthan V N MODULE_DESCRIPTION("TI CPSW Ethernet driver"); 3064