1 /* Broadcom NetXtreme-C/E network driver.
3  * Copyright (c) 2016-2017 Broadcom Limited
37 		req->vf_id = cpu_to_le16(vf_idx);  in hwrm_cfa_vfr_alloc()
38 		sprintf(req->vfr_name, "vfr%d", vf_idx);  in hwrm_cfa_vfr_alloc()
43 			*tx_cfa_action = le16_to_cpu(resp->tx_cfa_action);  in hwrm_cfa_vfr_alloc()
44 			*rx_cfa_code = le16_to_cpu(resp->rx_cfa_code);  in hwrm_cfa_vfr_alloc()
45 			netdev_dbg(bp->dev, "tx_cfa_action=0x%x, rx_cfa_code=0x%x",  in hwrm_cfa_vfr_alloc()
51 		netdev_info(bp->dev, "%s error rc=%d\n", __func__, rc);  in hwrm_cfa_vfr_alloc()
62 		sprintf(req->vfr_name, "vfr%d", vf_idx);  in hwrm_cfa_vfr_free()
66 		netdev_info(bp->dev, "%s error rc=%d\n", __func__, rc);  in hwrm_cfa_vfr_free()
82 	req->fid = cpu_to_le16(bp->pf.vf[vf_rep->vf_idx].fw_fid);  in bnxt_hwrm_vfr_qcfg()
86 		mtu = le16_to_cpu(resp->max_mtu_configured);  in bnxt_hwrm_vfr_qcfg()
99 	struct bnxt *bp = vf_rep->bp;  in bnxt_vf_rep_open()
102 	if (netif_running(bp->dev)) {  in bnxt_vf_rep_open()
121 	int rc, len = skb->len;  in bnxt_vf_rep_xmit()
124 	dst_hold((struct dst_entry *)vf_rep->dst);  in bnxt_vf_rep_xmit()
125 	skb_dst_set(skb, (struct dst_entry *)vf_rep->dst);  in bnxt_vf_rep_xmit()
126 	skb->dev = vf_rep->dst->u.port_info.lower_dev;  in bnxt_vf_rep_xmit()
130 		vf_rep->tx_stats.packets++;  in bnxt_vf_rep_xmit()
131 		vf_rep->tx_stats.bytes += len;  in bnxt_vf_rep_xmit()
142 	stats->rx_packets = vf_rep->rx_stats.packets;  in bnxt_vf_rep_get_stats64()
143 	stats->rx_bytes = vf_rep->rx_stats.bytes;  in bnxt_vf_rep_get_stats64()
144 	stats->tx_packets = vf_rep->tx_stats.packets;  in bnxt_vf_rep_get_stats64()
145 	stats->tx_bytes = vf_rep->tx_stats.bytes;  in bnxt_vf_rep_get_stats64()
153 	struct bnxt *bp = vf_rep->bp;  in bnxt_vf_rep_setup_tc_block_cb()
154 	int vf_fid = bp->pf.vf[vf_rep->vf_idx].fw_fid;  in bnxt_vf_rep_setup_tc_block_cb()
156 	if (!bnxt_tc_flower_enabled(vf_rep->bp) ||  in bnxt_vf_rep_setup_tc_block_cb()
157 	    !tc_cls_can_offload_and_chain0(bp->dev, type_data))  in bnxt_vf_rep_setup_tc_block_cb()
158 		return -EOPNOTSUPP;  in bnxt_vf_rep_setup_tc_block_cb()
164 		return -EOPNOTSUPP;  in bnxt_vf_rep_setup_tc_block_cb()
182 		return -EOPNOTSUPP;  in bnxt_vf_rep_setup_tc()
190 	if (cfa_code && bp->cfa_code_map && BNXT_PF(bp)) {  in bnxt_get_vf_rep()
191 		vf_idx = bp->cfa_code_map[cfa_code];  in bnxt_get_vf_rep()
193 			return bp->vf_reps[vf_idx]->dev;  in bnxt_get_vf_rep()
200 	struct bnxt_vf_rep *vf_rep = netdev_priv(skb->dev);  in bnxt_vf_rep_rx()
202 	vf_rep->rx_stats.bytes += skb->len;  in bnxt_vf_rep_rx()
203 	vf_rep->rx_stats.packets++;  in bnxt_vf_rep_rx()
212 	struct pci_dev *pf_pdev = vf_rep->bp->pdev;  in bnxt_vf_rep_get_phys_port_name()
215 	rc = snprintf(buf, len, "pf%dvf%d", PCI_FUNC(pf_pdev->devfn),  in bnxt_vf_rep_get_phys_port_name()
216 		      vf_rep->vf_idx);  in bnxt_vf_rep_get_phys_port_name()
218 		return -EOPNOTSUPP;  in bnxt_vf_rep_get_phys_port_name()
225 	strscpy(info->driver, DRV_MODULE_NAME, sizeof(info->driver));  in bnxt_vf_rep_get_drvinfo()
234 	 * between PF and VF-rep for now.  in bnxt_vf_rep_get_port_parent_id()
236 	return bnxt_get_port_parent_id(vf_rep->bp->dev, ppid);  in bnxt_vf_rep_get_port_parent_id()
255 	return dev->netdev_ops == &bnxt_vf_rep_netdev_ops;  in bnxt_dev_is_vf_rep()
259  * As the mode transition from SWITCHDEV to LEGACY
267 	if (bp->eswitch_mode != DEVLINK_ESWITCH_MODE_SWITCHDEV)  in bnxt_vf_reps_close()
270 	num_vfs = pci_num_vf(bp->pdev);  in bnxt_vf_reps_close()
272 		vf_rep = bp->vf_reps[i];  in bnxt_vf_reps_close()
273 		if (netif_running(vf_rep->dev))  in bnxt_vf_reps_close()
274 			bnxt_vf_rep_close(vf_rep->dev);  in bnxt_vf_reps_close()
278 /* Called when the parent PF interface is opened (re-opened):
279  * As the mode transition from SWITCHDEV to LEGACY
286 	if (bp->eswitch_mode != DEVLINK_ESWITCH_MODE_SWITCHDEV)  in bnxt_vf_reps_open()
289 	for (i = 0; i < pci_num_vf(bp->pdev); i++) {  in bnxt_vf_reps_open()
290 		/* Open the VF-Rep only if it is allocated in the FW */  in bnxt_vf_reps_open()
291 		if (bp->vf_reps[i]->tx_cfa_action != CFA_HANDLE_INVALID)  in bnxt_vf_reps_open()
292 			bnxt_vf_rep_open(bp->vf_reps[i]->dev);  in bnxt_vf_reps_open()
301 	if (vf_rep->dst) {  in __bnxt_free_one_vf_rep()
302 		dst_release((struct dst_entry *)vf_rep->dst);  in __bnxt_free_one_vf_rep()
303 		vf_rep->dst = NULL;  in __bnxt_free_one_vf_rep()
305 	if (vf_rep->tx_cfa_action != CFA_HANDLE_INVALID) {  in __bnxt_free_one_vf_rep()
306 		hwrm_cfa_vfr_free(bp, vf_rep->vf_idx);  in __bnxt_free_one_vf_rep()
307 		vf_rep->tx_cfa_action = CFA_HANDLE_INVALID;  in __bnxt_free_one_vf_rep()
313 	u16 num_vfs = pci_num_vf(bp->pdev);  in __bnxt_vf_reps_destroy()
318 		vf_rep = bp->vf_reps[i];  in __bnxt_vf_reps_destroy()
321 			if (vf_rep->dev) {  in __bnxt_vf_reps_destroy()
325 				if (vf_rep->dev->netdev_ops)  in __bnxt_vf_reps_destroy()
326 					unregister_netdev(vf_rep->dev);  in __bnxt_vf_reps_destroy()
327 				free_netdev(vf_rep->dev);  in __bnxt_vf_reps_destroy()
332 	kfree(bp->vf_reps);  in __bnxt_vf_reps_destroy()
333 	bp->vf_reps = NULL;  in __bnxt_vf_reps_destroy()
340 	if (bp->eswitch_mode != DEVLINK_ESWITCH_MODE_SWITCHDEV)  in bnxt_vf_reps_destroy()
343 	if (!bp->vf_reps)  in bnxt_vf_reps_destroy()
346 	/* Ensure that parent PF's and VF-reps' RX/TX has been quiesced  in bnxt_vf_reps_destroy()
347 	 * before proceeding with VF-rep cleanup.  in bnxt_vf_reps_destroy()
349 	netdev_lock(bp->dev);  in bnxt_vf_reps_destroy()
350 	if (netif_running(bp->dev)) {  in bnxt_vf_reps_destroy()
354 	/* un-publish cfa_code_map so that RX path can't see it anymore */  in bnxt_vf_reps_destroy()
355 	kfree(bp->cfa_code_map);  in bnxt_vf_reps_destroy()
356 	bp->cfa_code_map = NULL;  in bnxt_vf_reps_destroy()
359 		/* Temporarily set legacy mode to avoid re-opening  in bnxt_vf_reps_destroy()
360 		 * representors and restore switchdev mode after that.  in bnxt_vf_reps_destroy()
362 		bp->eswitch_mode = DEVLINK_ESWITCH_MODE_LEGACY;  in bnxt_vf_reps_destroy()
364 		bp->eswitch_mode = DEVLINK_ESWITCH_MODE_SWITCHDEV;  in bnxt_vf_reps_destroy()
366 	netdev_unlock(bp->dev);  in bnxt_vf_reps_destroy()
374 /* Free the VF-Reps in firmware, during firmware hot-reset processing.
375  * Note that the VF-Rep netdevs are still active (not unregistered) during
376  * this process. As the mode transition from SWITCHDEV to LEGACY happens
381 	u16 num_vfs = pci_num_vf(bp->pdev);  in bnxt_vf_reps_free()
384 	if (bp->eswitch_mode != DEVLINK_ESWITCH_MODE_SWITCHDEV)  in bnxt_vf_reps_free()
388 		__bnxt_free_one_vf_rep(bp, bp->vf_reps[i]);  in bnxt_vf_reps_free()
395 	if (hwrm_cfa_vfr_alloc(bp, vf_rep->vf_idx, &vf_rep->tx_cfa_action,  in bnxt_alloc_vf_rep()
396 			       &vf_rep->rx_cfa_code))  in bnxt_alloc_vf_rep()
397 		return -ENOLINK;  in bnxt_alloc_vf_rep()
399 	cfa_code_map[vf_rep->rx_cfa_code] = vf_rep->vf_idx;  in bnxt_alloc_vf_rep()
400 	vf_rep->dst = metadata_dst_alloc(0, METADATA_HW_PORT_MUX, GFP_KERNEL);  in bnxt_alloc_vf_rep()
401 	if (!vf_rep->dst)  in bnxt_alloc_vf_rep()
402 		return -ENOMEM;  in bnxt_alloc_vf_rep()
405 	vf_rep->dst->u.port_info.port_id = vf_rep->tx_cfa_action;  in bnxt_alloc_vf_rep()
406 	vf_rep->dst->u.port_info.lower_dev = bp->dev;  in bnxt_alloc_vf_rep()
411 /* Allocate the VF-Reps in firmware, during firmware hot-reset processing.
412  * Note that the VF-Rep netdevs are still active (not unregistered) during
413  * this process. As the mode transition from SWITCHDEV to LEGACY happens
418 	u16 *cfa_code_map = bp->cfa_code_map, num_vfs = pci_num_vf(bp->pdev);  in bnxt_vf_reps_alloc()
422 	if (bp->eswitch_mode != DEVLINK_ESWITCH_MODE_SWITCHDEV)  in bnxt_vf_reps_alloc()
426 		return -EINVAL;  in bnxt_vf_reps_alloc()
432 		vf_rep = bp->vf_reps[i];  in bnxt_vf_reps_alloc()
433 		vf_rep->vf_idx = i;  in bnxt_vf_reps_alloc()
443 	netdev_info(bp->dev, "%s error=%d\n", __func__, rc);  in bnxt_vf_reps_alloc()
449  * for the same VF-rep each time
466 	struct net_device *pf_dev = bp->dev;  in bnxt_vf_rep_netdev_init()
469 	SET_NETDEV_DEV(dev, &bp->pdev->dev);  in bnxt_vf_rep_netdev_init()
470 	dev->netdev_ops = &bnxt_vf_rep_netdev_ops;  in bnxt_vf_rep_netdev_init()
471 	dev->ethtool_ops = &bnxt_vf_rep_ethtool_ops;  in bnxt_vf_rep_netdev_init()
472 	/* Just inherit all the featues of the parent PF as the VF-R  in bnxt_vf_rep_netdev_init()
475 	dev->hw_features = pf_dev->hw_features;  in bnxt_vf_rep_netdev_init()
476 	dev->gso_partial_features = pf_dev->gso_partial_features;  in bnxt_vf_rep_netdev_init()
477 	dev->vlan_features = pf_dev->vlan_features;  in bnxt_vf_rep_netdev_init()
478 	dev->hw_enc_features = pf_dev->hw_enc_features;  in bnxt_vf_rep_netdev_init()
479 	dev->features |= pf_dev->features;  in bnxt_vf_rep_netdev_init()
480 	bnxt_vf_rep_eth_addr_gen(bp->pf.mac_addr, vf_rep->vf_idx,  in bnxt_vf_rep_netdev_init()
481 				 dev->perm_addr);  in bnxt_vf_rep_netdev_init()
482 	eth_hw_addr_set(dev, dev->perm_addr);  in bnxt_vf_rep_netdev_init()
483 	/* Set VF-Rep's max-mtu to the corresponding VF's max-mtu */  in bnxt_vf_rep_netdev_init()
485 		dev->max_mtu = max_mtu;  in bnxt_vf_rep_netdev_init()
486 	dev->min_mtu = ETH_ZLEN;  in bnxt_vf_rep_netdev_init()
491 	u16 *cfa_code_map = NULL, num_vfs = pci_num_vf(bp->pdev);  in bnxt_vf_reps_create()
496 	if (!(bp->flags & BNXT_FLAG_DSN_VALID))  in bnxt_vf_reps_create()
497 		return -ENODEV;  in bnxt_vf_reps_create()
499 	bp->vf_reps = kcalloc(num_vfs, sizeof(vf_rep), GFP_KERNEL);  in bnxt_vf_reps_create()
500 	if (!bp->vf_reps)  in bnxt_vf_reps_create()
501 		return -ENOMEM;  in bnxt_vf_reps_create()
503 	/* storage for cfa_code to vf-idx mapping */  in bnxt_vf_reps_create()
504 	cfa_code_map = kmalloc_array(MAX_CFA_CODE, sizeof(*bp->cfa_code_map),  in bnxt_vf_reps_create()
507 		rc = -ENOMEM;  in bnxt_vf_reps_create()
516 			rc = -ENOMEM;  in bnxt_vf_reps_create()
521 		bp->vf_reps[i] = vf_rep;  in bnxt_vf_reps_create()
522 		vf_rep->dev = dev;  in bnxt_vf_reps_create()
523 		vf_rep->bp = bp;  in bnxt_vf_reps_create()
524 		vf_rep->vf_idx = i;  in bnxt_vf_reps_create()
525 		vf_rep->tx_cfa_action = CFA_HANDLE_INVALID;  in bnxt_vf_reps_create()
535 			dev->netdev_ops = NULL;  in bnxt_vf_reps_create()
540 	/* publish cfa_code_map only after all VF-reps have been initialized */  in bnxt_vf_reps_create()
541 	bp->cfa_code_map = cfa_code_map;  in bnxt_vf_reps_create()
542 	netif_keep_dst(bp->dev);  in bnxt_vf_reps_create()
546 	netdev_info(bp->dev, "%s error=%d\n", __func__, rc);  in bnxt_vf_reps_create()
553 int bnxt_dl_eswitch_mode_get(struct devlink *devlink, u16 *mode)  in bnxt_dl_eswitch_mode_get()  argument
557 	*mode = bp->eswitch_mode;  in bnxt_dl_eswitch_mode_get()
561 int bnxt_dl_eswitch_mode_set(struct devlink *devlink, u16 mode,  in bnxt_dl_eswitch_mode_set()  argument
567 	if (bp->eswitch_mode == mode) {  in bnxt_dl_eswitch_mode_set()
568 		netdev_info(bp->dev, "already in %s eswitch mode\n",  in bnxt_dl_eswitch_mode_set()
569 			    mode == DEVLINK_ESWITCH_MODE_LEGACY ?  in bnxt_dl_eswitch_mode_set()
570 			    "legacy" : "switchdev");  in bnxt_dl_eswitch_mode_set()
571 		return -EINVAL;  in bnxt_dl_eswitch_mode_set()
574 	switch (mode) {  in bnxt_dl_eswitch_mode_set()
580 		if (bp->hwrm_spec_code < 0x10803) {  in bnxt_dl_eswitch_mode_set()
581 			netdev_warn(bp->dev, "FW does not support SRIOV E-Switch SWITCHDEV mode\n");  in bnxt_dl_eswitch_mode_set()
582 			return -ENOTSUPP;  in bnxt_dl_eswitch_mode_set()
586 		if (pci_num_vf(bp->pdev) > 0)  in bnxt_dl_eswitch_mode_set()
591 		return -EINVAL;  in bnxt_dl_eswitch_mode_set()
595 		bp->eswitch_mode = mode;  in bnxt_dl_eswitch_mode_set()