1 /* SPDX-License-Identifier: GPL-2.0 */
19 #include <linux/dma-mapping.h>
110 #define ICE_MAX_RXQS_PER_TC		256	/* Used when setting VSI context per TC Rx queues */
120 #define ICE_MAX_MTU	(ICE_AQ_SET_MAC_FRAME_SIZE_MAX - ICE_ETH_PKT_HDR_PAD)
128 #define ICE_TX_DESC(R, i) (&(((struct ice_tx_desc *)((R)->desc))[i]))
129 #define ICE_RX_DESC(R, i) (&(((union ice_32b_rx_flex_desc *)((R)->desc))[i]))
130 #define ICE_TX_CTX_DESC(R, i) (&(((struct ice_tx_ctx_desc *)((R)->desc))[i]))
131 #define ICE_TX_FDIRDESC(R, i) (&(((struct ice_fltr_desc *)((R)->desc))[i]))
157 	for ((i) = 0; (i) < (pf)->num_alloc_vsi; (i)++)
159 /* Macros for each Tx/Xdp/Rx ring in a VSI */
161 	for ((i) = 0; (i) < (vsi)->num_txq; (i)++)
164 	for ((i) = 0; (i) < (vsi)->num_xdp_txq; (i)++)
167 	for ((i) = 0; (i) < (vsi)->num_rxq; (i)++)
169 /* Macros for each allocated Tx/Rx ring whether used or not in a VSI */
171 	for ((i) = 0; (i) < (vsi)->alloc_txq; (i)++)
174 	for ((i) = 0; (i) < (vsi)->alloc_rxq; (i)++)
177 	for ((i) = 0; (i) < (vsi)->num_q_vectors; (i)++)
194 #define ice_pf_to_dev(pf) (&((pf)->pdev->dev))
228 	u32 q_teid;	/* Tx-scheduler element identifier */
230 	u16 q_handle;	/* Relative index of Tx queue within TC */
231 	u16 vsi_idx;	/* VSI index that Tx queue belongs to */
232 	u8 tc;		/* TC number that Tx queue belongs to */
244 	u16 ena_tc; /* Tx map */
249 	struct mutex *qs_mutex;  /* will be assigned to &pf->avail_q_mutex */
322 	struct ice_ring_stats **tx_ring_stats;  /* Tx ring stats array */
332 	struct ice_tx_ring **tx_rings;	 /* Tx ring array */
349 	u16 idx;			/* software index in pf->vsi[] */
356 	u16 rss_size;		/* Allocated RSS queues */
364 #define ICE_ARFS_LST_MASK	(ICE_MAX_ARFS_LIST - 1)
392 	u16 *txq_map;			 /* index in pf->avail_txqs */
393 	u16 *rxq_map;			 /* index in pf->avail_rxqs */
394 	u16 alloc_txq;			 /* Allocated Tx queues */
395 	u16 num_txq;			 /* Used Tx queues */
396 	u16 alloc_rxq;			 /* Allocated Rx queues */
397 	u16 num_rxq;			 /* Used Rx queues */
398 	u16 req_txq;			 /* User requested Tx queues */
399 	u16 req_rxq;			 /* User requested Rx queues */
405 	u16 num_xdp_txq;		 /* Used XDP queues */
423 	 * it can be used after tc-qdisc delete, to get back RSS setting as
428 	 * and inclusive of ADQ, vsi->mqprio_opt keeps track of queue
461 	u16 v_idx;			/* index in the vsi->q_vector array. */
464 	u8 num_ring_tx;			/* total number of Tx rings in vector */
474 	struct ice_ring_container tx;  member
561 	u16 ctrl_vsi_idx;		/* control VSI index in pf->vsi array */
576 	unsigned long *avail_txqs;	/* bitmap to track PF Tx queue usage */
582 	struct mutex avail_q_mutex;	/* protects access to avail_[rx|tx]qs */
606 	u16 max_pf_txqs;	/* Total Tx queues PF wide */
607 	u16 max_pf_rxqs;	/* Total Rx queues PF wide */
609 	u16 num_lan_tx;		/* num LAN Tx queues setup */
610 	u16 num_lan_rx;		/* num LAN Rx queues setup */
611 	u16 next_vsi;		/* Next free slot in pf->vsi[] - 0-based! */
688 	return !!qv->ch; /* Enable it to run with TC */  in ice_vector_ch_enabled()
692  * ice_ptp_pf_handles_tx_interrupt - Check if PF handles Tx interrupt
695  * Return true if this PF should respond to the Tx timestamp interrupt
700 	return pf->ptp.tx_interrupt_mode != ICE_PTP_TX_INTERRUPT_NONE;  in ice_ptp_pf_handles_tx_interrupt()
704  * ice_irq_dynamic_ena - Enable default interrupt generation settings
713 	u32 vector = (vsi && q_vector) ? q_vector->reg_idx :  in ice_irq_dynamic_ena()
714 				((struct ice_pf *)hw->back)->oicr_irq.index;  in ice_irq_dynamic_ena()
724 		if (test_bit(ICE_VSI_DOWN, vsi->state))  in ice_irq_dynamic_ena()
730  * ice_netdev_to_pf - Retrieve the PF struct associated with a netdev
737 	return np->vsi->back;  in ice_netdev_to_pf()
742 	return !!READ_ONCE(vsi->xdp_prog);  in ice_is_xdp_ena_vsi()
747 	ring->flags |= ICE_TX_FLAGS_RING_XDP;  in ice_set_ring_xdp()
751  * ice_get_xp_from_qid - get ZC XSK buffer pool bound to a queue ID
756  * attached and configured as zero-copy, NULL otherwise.
761 	struct xsk_buff_pool *pool = xsk_get_pool_from_qid(vsi->netdev, qid);  in ice_get_xp_from_qid()
766 	return (pool && pool->dev) ? pool : NULL;  in ice_get_xp_from_qid()
770  * ice_rx_xsk_pool - assign XSK buff pool to Rx ring
777 	struct ice_vsi *vsi = ring->vsi;  in ice_rx_xsk_pool()
778 	u16 qid = ring->q_index;  in ice_rx_xsk_pool()
780 	WRITE_ONCE(ring->xsk_pool, ice_get_xp_from_qid(vsi, qid));  in ice_rx_xsk_pool()
784  * ice_tx_xsk_pool - assign XSK buff pool to XDP ring
795  * rx_ring->xdp_ring assignment that was done during XDP rings initialization.
801 	ring = vsi->rx_rings[qid]->xdp_ring;  in ice_tx_xsk_pool()
805 	WRITE_ONCE(ring->xsk_pool, ice_get_xp_from_qid(vsi, qid));  in ice_tx_xsk_pool()
809  * ice_get_main_vsi - Get the PF VSI
812  * returns pf->vsi[0], which by definition is the PF VSI
816 	if (pf->vsi)  in ice_get_main_vsi()
817 		return pf->vsi[0];  in ice_get_main_vsi()
823  * ice_get_netdev_priv_vsi - return VSI associated with netdev priv.
829 	if (np->repr)  in ice_get_netdev_priv_vsi()
830 		return np->repr->src_vsi;  in ice_get_netdev_priv_vsi()
832 		return np->vsi;  in ice_get_netdev_priv_vsi()
836  * ice_get_ctrl_vsi - Get the control VSI
841 	/* if pf->ctrl_vsi_idx is ICE_NO_VSI, control VSI was not set up */  in ice_get_ctrl_vsi()
842 	if (!pf->vsi || pf->ctrl_vsi_idx == ICE_NO_VSI)  in ice_get_ctrl_vsi()
845 	return pf->vsi[pf->ctrl_vsi_idx];  in ice_get_ctrl_vsi()
849  * ice_find_vsi - Find the VSI from VSI ID
858 		if (pf->vsi[i] && pf->vsi[i]->vsi_num == vsi_num)  in ice_find_vsi()
859 			return  pf->vsi[i];  in ice_find_vsi()
864  * ice_is_switchdev_running - check if switchdev is configured
872 	return pf->eswitch.is_running;  in ice_is_switchdev_running()
884  * ice_is_adq_active - any active ADQs
900 	if (vsi->tc_cfg.numtc > ICE_CHNL_START_TC &&  in ice_is_adq_active()
901 	    test_bit(ICE_FLAG_TC_MQPRIO, pf->flags))  in ice_is_adq_active()
1017  * ice_set_rdma_cap - enable RDMA support
1022 	if (pf->hw.func_caps.common_cap.rdma && pf->num_rdma_msix) {  in ice_set_rdma_cap()
1023 		set_bit(ICE_FLAG_RDMA_ENA, pf->flags);  in ice_set_rdma_cap()
1024 		set_bit(ICE_FLAG_PLUG_AUX_DEV, pf->flags);  in ice_set_rdma_cap()
1029  * ice_clear_rdma_cap - disable RDMA support
1037 	clear_bit(ICE_FLAG_PLUG_AUX_DEV, pf->flags);  in ice_clear_rdma_cap()
1038 	set_bit(ICE_FLAG_UNPLUG_AUX_DEV, pf->flags);  in ice_clear_rdma_cap()
1039 	clear_bit(ICE_FLAG_RDMA_ENA, pf->flags);  in ice_clear_rdma_cap()
1045  * ice_is_dual - Check if given config is multi-NAC
1048  * Return: true if the device is running in mutli-NAC (Network
1050  * (always false for non-E825 devices).
1054 	return hw->mac_type == ICE_MAC_GENERIC_3K_E825 &&  in ice_is_dual()
1055 	       (hw->dev_caps.nac_topo.mode & ICE_NAC_TOPO_DUAL_M);  in ice_is_dual()
1059  * ice_is_primary - Check if given device belongs to the primary complex
1062  * Check if given PF/HW is running on primary complex in multi-NAC
1066  * for non-E825 devices).
1070 	return hw->mac_type != ICE_MAC_GENERIC_3K_E825 ||  in ice_is_primary()
1072 	       (hw->dev_caps.nac_topo.mode & ICE_NAC_TOPO_PRIMARY_M);  in ice_is_primary()
1076  * ice_pf_src_tmr_owned - Check if a primary timer is owned by PF
1083 	return pf->hw.func_caps.ts_func_info.src_tmr_owned &&  in ice_pf_src_tmr_owned()
1084 	       ice_is_primary(&pf->hw);  in ice_pf_src_tmr_owned()
1088  * ice_get_primary_hw - Get pointer to primary ice_hw structure
1096 	if (!pf->adapter->ctrl_pf)  in ice_get_primary_hw()
1097 		return &pf->hw;  in ice_get_primary_hw()
1099 		return &pf->adapter->ctrl_pf->hw;  in ice_get_primary_hw()