diff --git a/drivers/net/ethernet/cavium/thunder/nic.h b/drivers/net/ethernet/cavium/thunder/nic.h index 4cacce5d2b163e60dbc0fb37cd2136620d6eac69..5fc46c5a4f368bcbefabb980193b27a738418782 100644 --- a/drivers/net/ethernet/cavium/thunder/nic.h +++ b/drivers/net/ethernet/cavium/thunder/nic.h @@ -265,6 +265,22 @@ struct nicvf_drv_stats { struct cavium_ptp; +struct xcast_addr { + struct list_head list; + u64 addr; +}; + +struct xcast_addr_list { + struct list_head list; + int count; +}; + +struct nicvf_work { + struct delayed_work work; + u8 mode; + struct xcast_addr_list *mc; +}; + struct nicvf { struct nicvf *pnicvf; struct net_device *netdev; @@ -313,6 +329,7 @@ struct nicvf { struct nicvf_pfc pfc; struct tasklet_struct qs_err_task; struct work_struct reset_task; + struct nicvf_work rx_mode_work; /* PTP timestamp */ struct cavium_ptp *ptp_clock; @@ -403,6 +420,9 @@ struct nicvf { #define NIC_MBOX_MSG_PTP_CFG 0x19 /* HW packet timestamp */ #define NIC_MBOX_MSG_CFG_DONE 0xF0 /* VF configuration done */ #define NIC_MBOX_MSG_SHUTDOWN 0xF1 /* VF is being shutdown */ +#define NIC_MBOX_MSG_RESET_XCAST 0xF2 /* Reset DCAM filtering mode */ +#define NIC_MBOX_MSG_ADD_MCAST 0xF3 /* Add MAC to DCAM filters */ +#define NIC_MBOX_MSG_SET_XCAST 0xF4 /* Set MCAST/BCAST RX mode */ struct nic_cfg_msg { u8 msg; @@ -556,6 +576,14 @@ struct set_ptp { bool enable; }; +struct xcast { + u8 msg; + union { + u8 mode; + u64 mac; + } data; +}; + /* 128 bit shared memory between PF and each VF */ union nic_mbx { struct { u8 msg; } msg; @@ -576,6 +604,7 @@ union nic_mbx { struct reset_stat_cfg reset_stat; struct pfc pfc; struct set_ptp ptp; + struct xcast xcast; }; #define NIC_NODE_ID_MASK 0x03 diff --git a/drivers/net/ethernet/cavium/thunder/nic_main.c b/drivers/net/ethernet/cavium/thunder/nic_main.c index 7ff66a8194e2742bbf459fd57917b427bf0de3fc..55af04fa03a77e850196e82e930e3f85af7c6aa7 100644 --- a/drivers/net/ethernet/cavium/thunder/nic_main.c +++ b/drivers/net/ethernet/cavium/thunder/nic_main.c @@ -21,6 +21,8 @@ #define DRV_NAME "nicpf" #define DRV_VERSION "1.0" +#define NIC_VF_PER_MBX_REG 64 + struct hw_info { u8 bgx_cnt; u8 chans_per_lmac; @@ -1072,6 +1074,40 @@ static void nic_handle_mbx_intr(struct nicpf *nic, int vf) case NIC_MBOX_MSG_PTP_CFG: nic_config_timestamp(nic, vf, &mbx.ptp); break; + case NIC_MBOX_MSG_RESET_XCAST: + if (vf >= nic->num_vf_en) { + ret = -1; /* NACK */ + break; + } + bgx = NIC_GET_BGX_FROM_VF_LMAC_MAP(nic->vf_lmac_map[vf]); + lmac = NIC_GET_LMAC_FROM_VF_LMAC_MAP(nic->vf_lmac_map[vf]); + bgx_reset_xcast_mode(nic->node, bgx, lmac, + vf < NIC_VF_PER_MBX_REG ? vf : + vf - NIC_VF_PER_MBX_REG); + break; + + case NIC_MBOX_MSG_ADD_MCAST: + if (vf >= nic->num_vf_en) { + ret = -1; /* NACK */ + break; + } + bgx = NIC_GET_BGX_FROM_VF_LMAC_MAP(nic->vf_lmac_map[vf]); + lmac = NIC_GET_LMAC_FROM_VF_LMAC_MAP(nic->vf_lmac_map[vf]); + bgx_set_dmac_cam_filter(nic->node, bgx, lmac, + mbx.xcast.data.mac, + vf < NIC_VF_PER_MBX_REG ? vf : + vf - NIC_VF_PER_MBX_REG); + break; + + case NIC_MBOX_MSG_SET_XCAST: + if (vf >= nic->num_vf_en) { + ret = -1; /* NACK */ + break; + } + bgx = NIC_GET_BGX_FROM_VF_LMAC_MAP(nic->vf_lmac_map[vf]); + lmac = NIC_GET_LMAC_FROM_VF_LMAC_MAP(nic->vf_lmac_map[vf]); + bgx_set_xcast_mode(nic->node, bgx, lmac, mbx.xcast.data.mode); + break; default: dev_err(&nic->pdev->dev, "Invalid msg from VF%d, msg 0x%x\n", vf, mbx.msg.msg); @@ -1094,7 +1130,7 @@ static irqreturn_t nic_mbx_intr_handler(int irq, void *nic_irq) struct nicpf *nic = (struct nicpf *)nic_irq; int mbx; u64 intr; - u8 vf, vf_per_mbx_reg = 64; + u8 vf; if (irq == pci_irq_vector(nic->pdev, NIC_PF_INTR_ID_MBOX0)) mbx = 0; @@ -1103,12 +1139,13 @@ static irqreturn_t nic_mbx_intr_handler(int irq, void *nic_irq) intr = nic_reg_read(nic, NIC_PF_MAILBOX_INT + (mbx << 3)); dev_dbg(&nic->pdev->dev, "PF interrupt Mbox%d 0x%llx\n", mbx, intr); - for (vf = 0; vf < vf_per_mbx_reg; vf++) { + for (vf = 0; vf < NIC_VF_PER_MBX_REG; vf++) { if (intr & (1ULL << vf)) { dev_dbg(&nic->pdev->dev, "Intr from VF %d\n", - vf + (mbx * vf_per_mbx_reg)); + vf + (mbx * NIC_VF_PER_MBX_REG)); - nic_handle_mbx_intr(nic, vf + (mbx * vf_per_mbx_reg)); + nic_handle_mbx_intr(nic, vf + + (mbx * NIC_VF_PER_MBX_REG)); nic_clear_mbx_intr(nic, vf, mbx); } } diff --git a/drivers/net/ethernet/cavium/thunder/nicvf_main.c b/drivers/net/ethernet/cavium/thunder/nicvf_main.c index 73fe3881414b3f7a5bca65f9788defc5e28b077d..1e9a31fef729de76f0b908bedf5ba4f34488d734 100644 --- a/drivers/net/ethernet/cavium/thunder/nicvf_main.c +++ b/drivers/net/ethernet/cavium/thunder/nicvf_main.c @@ -21,6 +21,7 @@ #include #include #include +#include #include "nic_reg.h" #include "nic.h" @@ -67,6 +68,9 @@ module_param(cpi_alg, int, 0444); MODULE_PARM_DESC(cpi_alg, "PFC algorithm (0=none, 1=VLAN, 2=VLAN16, 3=IP Diffserv)"); +/* workqueue for handling kernel ndo_set_rx_mode() calls */ +static struct workqueue_struct *nicvf_rx_mode_wq; + static inline u8 nicvf_netdev_qidx(struct nicvf *nic, u8 qidx) { if (nic->sqs_mode) @@ -1919,6 +1923,100 @@ static int nicvf_ioctl(struct net_device *netdev, struct ifreq *req, int cmd) } } +static void nicvf_set_rx_mode_task(struct work_struct *work_arg) +{ + struct nicvf_work *vf_work = container_of(work_arg, struct nicvf_work, + work.work); + struct nicvf *nic = container_of(vf_work, struct nicvf, rx_mode_work); + union nic_mbx mbx = {}; + struct xcast_addr *xaddr, *next; + + if (!vf_work) + return; + + /* From the inside of VM code flow we have only 128 bits memory + * available to send message to host's PF, so send all mc addrs + * one by one, starting from flush command in case if kernel + * requests to configure specific MAC filtering + */ + + /* flush DMAC filters and reset RX mode */ + mbx.xcast.msg = NIC_MBOX_MSG_RESET_XCAST; + nicvf_send_msg_to_pf(nic, &mbx); + + if (vf_work->mode & BGX_XCAST_MCAST_FILTER) { + /* once enabling filtering, we need to signal to PF to add + * its' own LMAC to the filter to accept packets for it. + */ + mbx.xcast.msg = NIC_MBOX_MSG_ADD_MCAST; + mbx.xcast.data.mac = 0; + nicvf_send_msg_to_pf(nic, &mbx); + } + + /* check if we have any specific MACs to be added to PF DMAC filter */ + if (vf_work->mc) { + /* now go through kernel list of MACs and add them one by one */ + list_for_each_entry_safe(xaddr, next, + &vf_work->mc->list, list) { + mbx.xcast.msg = NIC_MBOX_MSG_ADD_MCAST; + mbx.xcast.data.mac = xaddr->addr; + nicvf_send_msg_to_pf(nic, &mbx); + + /* after receiving ACK from PF release memory */ + list_del(&xaddr->list); + kfree(xaddr); + vf_work->mc->count--; + } + kfree(vf_work->mc); + } + + /* and finally set rx mode for PF accordingly */ + mbx.xcast.msg = NIC_MBOX_MSG_SET_XCAST; + mbx.xcast.data.mode = vf_work->mode; + + nicvf_send_msg_to_pf(nic, &mbx); +} + +static void nicvf_set_rx_mode(struct net_device *netdev) +{ + struct nicvf *nic = netdev_priv(netdev); + struct netdev_hw_addr *ha; + struct xcast_addr_list *mc_list = NULL; + u8 mode = 0; + + if (netdev->flags & IFF_PROMISC) { + mode = BGX_XCAST_BCAST_ACCEPT | BGX_XCAST_MCAST_ACCEPT; + } else { + if (netdev->flags & IFF_BROADCAST) + mode |= BGX_XCAST_BCAST_ACCEPT; + + if (netdev->flags & IFF_ALLMULTI) { + mode |= BGX_XCAST_MCAST_ACCEPT; + } else if (netdev->flags & IFF_MULTICAST) { + mode |= BGX_XCAST_MCAST_FILTER; + /* here we need to copy mc addrs */ + if (netdev_mc_count(netdev)) { + struct xcast_addr *xaddr; + + mc_list = kmalloc(sizeof(*mc_list), GFP_ATOMIC); + INIT_LIST_HEAD(&mc_list->list); + netdev_hw_addr_list_for_each(ha, &netdev->mc) { + xaddr = kmalloc(sizeof(*xaddr), + GFP_ATOMIC); + xaddr->addr = + ether_addr_to_u64(ha->addr); + list_add_tail(&xaddr->list, + &mc_list->list); + mc_list->count++; + } + } + } + } + nic->rx_mode_work.mc = mc_list; + nic->rx_mode_work.mode = mode; + queue_delayed_work(nicvf_rx_mode_wq, &nic->rx_mode_work.work, 2 * HZ); +} + static const struct net_device_ops nicvf_netdev_ops = { .ndo_open = nicvf_open, .ndo_stop = nicvf_stop, @@ -1931,6 +2029,7 @@ static const struct net_device_ops nicvf_netdev_ops = { .ndo_set_features = nicvf_set_features, .ndo_bpf = nicvf_xdp, .ndo_do_ioctl = nicvf_ioctl, + .ndo_set_rx_mode = nicvf_set_rx_mode, }; static int nicvf_probe(struct pci_dev *pdev, const struct pci_device_id *ent) @@ -2071,6 +2170,8 @@ static int nicvf_probe(struct pci_dev *pdev, const struct pci_device_id *ent) INIT_WORK(&nic->reset_task, nicvf_reset_task); + INIT_DELAYED_WORK(&nic->rx_mode_work.work, nicvf_set_rx_mode_task); + err = register_netdev(netdev); if (err) { dev_err(dev, "Failed to register netdevice\n"); @@ -2109,6 +2210,8 @@ static void nicvf_remove(struct pci_dev *pdev) nic = netdev_priv(netdev); pnetdev = nic->pnicvf->netdev; + cancel_delayed_work_sync(&nic->rx_mode_work.work); + /* Check if this Qset is assigned to different VF. * If yes, clean primary and all secondary Qsets. */ @@ -2140,12 +2243,17 @@ static struct pci_driver nicvf_driver = { static int __init nicvf_init_module(void) { pr_info("%s, ver %s\n", DRV_NAME, DRV_VERSION); - + nicvf_rx_mode_wq = alloc_ordered_workqueue("nicvf_generic", + WQ_MEM_RECLAIM); return pci_register_driver(&nicvf_driver); } static void __exit nicvf_cleanup_module(void) { + if (nicvf_rx_mode_wq) { + destroy_workqueue(nicvf_rx_mode_wq); + nicvf_rx_mode_wq = NULL; + } pci_unregister_driver(&nicvf_driver); } diff --git a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c index 91d34ea40e2c9e40507aee5a47748b61e94785f6..5d08d2aeb1722cf16976d115634ed3dd283a5b8b 100644 --- a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c +++ b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c @@ -24,9 +24,31 @@ #define DRV_NAME "thunder_bgx" #define DRV_VERSION "1.0" +/* RX_DMAC_CTL configuration */ +enum MCAST_MODE { + MCAST_MODE_REJECT = 0x0, + MCAST_MODE_ACCEPT = 0x1, + MCAST_MODE_CAM_FILTER = 0x2, + RSVD = 0x3 +}; + +#define BCAST_ACCEPT BIT(0) +#define CAM_ACCEPT BIT(3) +#define MCAST_MODE_MASK 0x3 +#define BGX_MCAST_MODE(x) (x << 1) + +struct dmac_map { + u64 vf_map; + u64 dmac; +}; + struct lmac { struct bgx *bgx; - int dmac; + /* actual number of DMACs configured */ + u8 dmacs_cfg; + /* overal number of possible DMACs could be configured per LMAC */ + u8 dmacs_count; + struct dmac_map *dmacs; /* DMAC:VFs tracking filter array */ u8 mac[ETH_ALEN]; u8 lmac_type; u8 lane_to_sds; @@ -223,6 +245,163 @@ void bgx_set_lmac_mac(int node, int bgx_idx, int lmacid, const u8 *mac) } EXPORT_SYMBOL(bgx_set_lmac_mac); +static void bgx_flush_dmac_cam_filter(struct bgx *bgx, int lmacid) +{ + struct lmac *lmac = NULL; + u8 idx = 0; + + lmac = &bgx->lmac[lmacid]; + /* reset CAM filters */ + for (idx = 0; idx < lmac->dmacs_count; idx++) + bgx_reg_write(bgx, 0, BGX_CMR_RX_DMACX_CAM + + ((lmacid * lmac->dmacs_count) + idx) * + sizeof(u64), 0); +} + +static void bgx_lmac_remove_filters(struct lmac *lmac, u8 vf_id) +{ + int i = 0; + + if (!lmac) + return; + + /* We've got reset filters request from some of attached VF, while the + * others might want to keep their configuration. So in this case lets + * iterate over all of configured filters and decrease number of + * referencies. if some addresses get zero refs remove them from list + */ + for (i = lmac->dmacs_cfg - 1; i >= 0; i--) { + lmac->dmacs[i].vf_map &= ~BIT_ULL(vf_id); + if (!lmac->dmacs[i].vf_map) { + lmac->dmacs_cfg--; + lmac->dmacs[i].dmac = 0; + lmac->dmacs[i].vf_map = 0; + } + } +} + +static int bgx_lmac_save_filter(struct lmac *lmac, u64 dmac, u8 vf_id) +{ + u8 i = 0; + + if (!lmac) + return -1; + + /* At the same time we could have several VFs 'attached' to some + * particular LMAC, and each VF is represented as network interface + * for kernel. So from user perspective it should be possible to + * manipulate with its' (VF) receive modes. However from PF + * driver perspective we need to keep track of filter configurations + * for different VFs to prevent filter values dupes + */ + for (i = 0; i < lmac->dmacs_cfg; i++) { + if (lmac->dmacs[i].dmac == dmac) { + lmac->dmacs[i].vf_map |= BIT_ULL(vf_id); + return -1; + } + } + + if (!(lmac->dmacs_cfg < lmac->dmacs_count)) + return -1; + + /* keep it for further tracking */ + lmac->dmacs[lmac->dmacs_cfg].dmac = dmac; + lmac->dmacs[lmac->dmacs_cfg].vf_map = BIT_ULL(vf_id); + lmac->dmacs_cfg++; + return 0; +} + +static int bgx_set_dmac_cam_filter_mac(struct bgx *bgx, int lmacid, + u64 cam_dmac, u8 idx) +{ + struct lmac *lmac = NULL; + u64 cfg = 0; + + /* skip zero addresses as meaningless */ + if (!cam_dmac || !bgx) + return -1; + + lmac = &bgx->lmac[lmacid]; + + /* configure DCAM filtering for designated LMAC */ + cfg = RX_DMACX_CAM_LMACID(lmacid & LMAC_ID_MASK) | + RX_DMACX_CAM_EN | cam_dmac; + bgx_reg_write(bgx, 0, BGX_CMR_RX_DMACX_CAM + + ((lmacid * lmac->dmacs_count) + idx) * sizeof(u64), cfg); + return 0; +} + +void bgx_set_dmac_cam_filter(int node, int bgx_idx, int lmacid, + u64 cam_dmac, u8 vf_id) +{ + struct bgx *bgx = get_bgx(node, bgx_idx); + struct lmac *lmac = NULL; + + if (!bgx) + return; + + lmac = &bgx->lmac[lmacid]; + + if (!cam_dmac) + cam_dmac = ether_addr_to_u64(lmac->mac); + + /* since we might have several VFs attached to particular LMAC + * and kernel could call mcast config for each of them with the + * same MAC, check if requested MAC is already in filtering list and + * updare/prepare list of MACs to be applied later to HW filters + */ + bgx_lmac_save_filter(lmac, cam_dmac, vf_id); +} +EXPORT_SYMBOL(bgx_set_dmac_cam_filter); + +void bgx_set_xcast_mode(int node, int bgx_idx, int lmacid, u8 mode) +{ + struct bgx *bgx = get_bgx(node, bgx_idx); + struct lmac *lmac = NULL; + u64 cfg = 0; + u8 i = 0; + + if (!bgx) + return; + + lmac = &bgx->lmac[lmacid]; + + cfg = bgx_reg_read(bgx, lmacid, BGX_CMRX_RX_DMAC_CTL); + if (mode & BGX_XCAST_BCAST_ACCEPT) + cfg |= BCAST_ACCEPT; + else + cfg &= ~BCAST_ACCEPT; + + /* disable all MCASTs and DMAC filtering */ + cfg &= ~(CAM_ACCEPT | BGX_MCAST_MODE(MCAST_MODE_MASK)); + + /* check requested bits and set filtergin mode appropriately */ + if (mode & (BGX_XCAST_MCAST_ACCEPT)) { + cfg |= (BGX_MCAST_MODE(MCAST_MODE_ACCEPT)); + } else if (mode & BGX_XCAST_MCAST_FILTER) { + cfg |= (BGX_MCAST_MODE(MCAST_MODE_CAM_FILTER) | CAM_ACCEPT); + for (i = 0; i < lmac->dmacs_cfg; i++) + bgx_set_dmac_cam_filter_mac(bgx, lmacid, + lmac->dmacs[i].dmac, i); + } + bgx_reg_write(bgx, lmacid, BGX_CMRX_RX_DMAC_CTL, cfg); +} +EXPORT_SYMBOL(bgx_set_xcast_mode); + +void bgx_reset_xcast_mode(int node, int bgx_idx, int lmacid, u8 vf_id) +{ + struct bgx *bgx = get_bgx(node, bgx_idx); + + if (!bgx) + return; + + bgx_lmac_remove_filters(&bgx->lmac[lmacid], vf_id); + bgx_flush_dmac_cam_filter(bgx, lmacid); + bgx_set_xcast_mode(node, bgx_idx, lmacid, + (BGX_XCAST_BCAST_ACCEPT | BGX_XCAST_MCAST_ACCEPT)); +} +EXPORT_SYMBOL(bgx_reset_xcast_mode); + void bgx_lmac_rx_tx_enable(int node, int bgx_idx, int lmacid, bool enable) { struct bgx *bgx = get_bgx(node, bgx_idx); @@ -468,18 +647,6 @@ u64 bgx_get_tx_stats(int node, int bgx_idx, int lmac, int idx) } EXPORT_SYMBOL(bgx_get_tx_stats); -static void bgx_flush_dmac_addrs(struct bgx *bgx, int lmac) -{ - u64 offset; - - while (bgx->lmac[lmac].dmac > 0) { - offset = ((bgx->lmac[lmac].dmac - 1) * sizeof(u64)) + - (lmac * MAX_DMAC_PER_LMAC * sizeof(u64)); - bgx_reg_write(bgx, 0, BGX_CMR_RX_DMACX_CAM + offset, 0); - bgx->lmac[lmac].dmac--; - } -} - /* Configure BGX LMAC in internal loopback mode */ void bgx_lmac_internal_loopback(int node, int bgx_idx, int lmac_idx, bool enable) @@ -912,6 +1079,11 @@ static int bgx_lmac_enable(struct bgx *bgx, u8 lmacid) bgx_reg_write(bgx, lmacid, BGX_SMUX_TX_MIN_PKT, 60 + 4); } + /* actual number of filters available to exact LMAC */ + lmac->dmacs_count = (RX_DMAC_COUNT / bgx->lmac_count); + lmac->dmacs = kcalloc(lmac->dmacs_count, sizeof(*lmac->dmacs), + GFP_KERNEL); + /* Enable lmac */ bgx_reg_modify(bgx, lmacid, BGX_CMRX_CFG, CMR_EN); @@ -998,7 +1170,8 @@ static void bgx_lmac_disable(struct bgx *bgx, u8 lmacid) cfg &= ~CMR_EN; bgx_reg_write(bgx, lmacid, BGX_CMRX_CFG, cfg); - bgx_flush_dmac_addrs(bgx, lmacid); + bgx_flush_dmac_cam_filter(bgx, lmacid); + kfree(lmac->dmacs); if ((lmac->lmac_type != BGX_MODE_XFI) && (lmac->lmac_type != BGX_MODE_XLAUI) && diff --git a/drivers/net/ethernet/cavium/thunder/thunder_bgx.h b/drivers/net/ethernet/cavium/thunder/thunder_bgx.h index 5a7567d3113815abc99392e0e9faa6cee9699940..cbdd20b9ee6f1d4ede1551c37d585f3ecef0ab1b 100644 --- a/drivers/net/ethernet/cavium/thunder/thunder_bgx.h +++ b/drivers/net/ethernet/cavium/thunder/thunder_bgx.h @@ -30,6 +30,7 @@ #define DEFAULT_PAUSE_TIME 0xFFFF #define BGX_ID_MASK 0x3 +#define LMAC_ID_MASK 0x3 #define MAX_DMAC_PER_LMAC_TNS_BYPASS_MODE 2 @@ -57,7 +58,7 @@ #define BGX_CMRX_RX_FIFO_LEN 0x108 #define BGX_CMR_RX_DMACX_CAM 0x200 #define RX_DMACX_CAM_EN BIT_ULL(48) -#define RX_DMACX_CAM_LMACID(x) (x << 49) +#define RX_DMACX_CAM_LMACID(x) (((u64)x) << 49) #define RX_DMAC_COUNT 32 #define BGX_CMR_RX_STREERING 0x300 #define RX_TRAFFIC_STEER_RULE_COUNT 8 @@ -205,17 +206,13 @@ #define LMAC_INTR_LINK_UP BIT(0) #define LMAC_INTR_LINK_DOWN BIT(1) -/* RX_DMAC_CTL configuration*/ -enum MCAST_MODE { - MCAST_MODE_REJECT, - MCAST_MODE_ACCEPT, - MCAST_MODE_CAM_FILTER, - RSVD -}; - -#define BCAST_ACCEPT 1 -#define CAM_ACCEPT 1 +#define BGX_XCAST_BCAST_ACCEPT BIT(0) +#define BGX_XCAST_MCAST_ACCEPT BIT(1) +#define BGX_XCAST_MCAST_FILTER BIT(2) +void bgx_set_dmac_cam_filter(int node, int bgx_idx, int lmacid, u64 mac, u8 vf); +void bgx_reset_xcast_mode(int node, int bgx_idx, int lmacid, u8 vf); +void bgx_set_xcast_mode(int node, int bgx_idx, int lmacid, u8 mode); void octeon_mdiobus_force_mod_depencency(void); void bgx_lmac_rx_tx_enable(int node, int bgx_idx, int lmacid, bool enable); void bgx_add_dmac_addr(u64 dmac, int node, int bgx_idx, int lmac);