1 /* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */
2 /* Copyright 2017-2019 NXP */
8 #include <linux/dma-mapping.h>
19 #define ENETC_MAX_MTU		(ENETC_MAC_MAXFRM_SIZE - \
47 	(SKB_WITH_OVERHEAD(ENETC_RXB_TRUESIZE) - ENETC_RXB_PAD)
49 	(SKB_WITH_OVERHEAD(ENETC_RXB_TRUESIZE) - XDP_PACKET_HEADROOM)
61 /* max # of chained Tx BDs is 15, including head and extension BD */
91 	struct device *dev; /* for DMA mapping */
96 	void *bd_base; /* points to Rx or Tx BD ring */
107 	struct device *dev; /* for DMA mapping */
109 	void *bd_base; /* points to Rx or Tx BD ring */
124 		void __iomem *tcir; /* Tx */
145 	if (unlikely(++*i == bdr->bd_count))  in enetc_bdr_idx_inc()
151 	if (bdr->next_to_clean > bdr->next_to_use)  in enetc_bd_unused()
152 		return bdr->next_to_clean - bdr->next_to_use - 1;  in enetc_bd_unused()
154 	return bdr->bd_count + bdr->next_to_clean - bdr->next_to_use - 1;  in enetc_bd_unused()
159 	if (bdr->next_to_clean > bdr->next_to_alloc)  in enetc_swbd_unused()
160 		return bdr->next_to_clean - bdr->next_to_alloc - 1;  in enetc_swbd_unused()
162 	return bdr->bd_count + bdr->next_to_clean - bdr->next_to_alloc - 1;  in enetc_swbd_unused()
168 	void *bd_base; /* points to Rx or Tx BD ring */
187 	if (IS_ENABLED(CONFIG_FSL_ENETC_PTP_CLOCK) && rx_ring->ext_en)  in enetc_rxbd()
190 	return &(((union enetc_rx_bd *)rx_ring->bd_base)[hw_idx]);  in enetc_rxbd()
201 	if (IS_ENABLED(CONFIG_FSL_ENETC_PTP_CLOCK) && rx_ring->ext_en)  in enetc_rxbd_next()
204 	if (unlikely(++new_index == rx_ring->bd_count)) {  in enetc_rxbd_next()
205 		new_rxbd = rx_ring->bd_base;  in enetc_rxbd_next()
261 	return !!(si->hw.port);  in enetc_si_is_pf()
266 	switch (pf_pdev->devfn) {  in enetc_pf_to_port()
276 		return -1;  in enetc_pf_to_port()
316 	/* 8 bits reserved for TX timestamp types (hwtstamp_tx_types) */
335 	/* activated when int coalescing time is set to a non-0 value */
348 	struct device *dev; /* dma-mapping device */
351 	int bdr_int_num; /* number of Rx/Tx ring interrupts */
374 	/* Minimum number of TX queues required by the network stack */
396 /* VF-PF set primary MAC address message format */
460 	struct enetc_cbdr *ring = &si->cbd_ring;  in enetc_cbd_alloc_data_mem()
464 	data = dma_alloc_coherent(ring->dma_dev,  in enetc_cbd_alloc_data_mem()
468 		dev_err(ring->dma_dev, "CBD alloc data memory failed!\n");  in enetc_cbd_alloc_data_mem()
475 	cbd->addr[0] = cpu_to_le32(lower_32_bits(dma_align));  in enetc_cbd_alloc_data_mem()
476 	cbd->addr[1] = cpu_to_le32(upper_32_bits(dma_align));  in enetc_cbd_alloc_data_mem()
477 	cbd->length = cpu_to_le16(size);  in enetc_cbd_alloc_data_mem()
485 	struct enetc_cbdr *ring = &si->cbd_ring;  in enetc_cbd_free_data_mem()
487 	dma_free_coherent(ring->dma_dev, size + ENETC_CBD_DATA_MEM_ALIGN,  in enetc_cbd_free_data_mem()
509 	struct enetc_hw *hw = &priv->si->hw;  in enetc_get_max_cap()
513 	priv->psfp_cap.max_streamid = reg & ENETC_PSIDCAPR_MSK;  in enetc_get_max_cap()
514 	/* Port stream filter capability */  in enetc_get_max_cap()
516 	priv->psfp_cap.max_psfp_filter = reg & ENETC_PSFCAPR_MSK;  in enetc_get_max_cap()
517 	/* Port stream gate capability */  in enetc_get_max_cap()
519 	priv->psfp_cap.max_psfp_gate = (reg & ENETC_PSGCAPR_SGIT_MSK);  in enetc_get_max_cap()
520 	priv->psfp_cap.max_psfp_gatelist = (reg & ENETC_PSGCAPR_GCL_MSK) >> 16;  in enetc_get_max_cap()
521 	/* Port flow meter capability */  in enetc_get_max_cap()
523 	priv->psfp_cap.max_psfp_meter = reg & ENETC_PFMCAPR_MSK;  in enetc_get_max_cap()
528 	struct enetc_hw *hw = &priv->si->hw;  in enetc_psfp_enable()
546 	struct enetc_hw *hw = &priv->si->hw;  in enetc_psfp_disable()
557 	memset(&priv->psfp_cap, 0, sizeof(struct psfp_cap));  in enetc_psfp_disable()
563 #define enetc_qos_query_caps(ndev, type_data) -EOPNOTSUPP
564 #define enetc_setup_tc_taprio(ndev, type_data) -EOPNOTSUPP
566 #define enetc_setup_tc_cbs(ndev, type_data) -EOPNOTSUPP
567 #define enetc_setup_tc_txtime(ndev, type_data) -EOPNOTSUPP
568 #define enetc_setup_tc_psfp(ndev, type_data) -EOPNOTSUPP
572 	memset(&((p)->psfp_cap), 0, sizeof(struct psfp_cap))