1 /* SPDX-License-Identifier: ISC */
3  * Copyright (c) 2012-2016 Qualcomm Atheros, Inc.
4  * Copyright (c) 2018-2019, The Linux Foundation. All rights reserved.
26 	return le32_to_cpu(addr->addr_low) |  in wil_desc_addr()
27 			   ((u64)le16_to_cpu(addr->addr_high) << 32);  in wil_desc_addr()
33 	addr->addr_low = cpu_to_le32(lower_32_bits(pa));  in wil_desc_addr_set()
34 	addr->addr_high = cpu_to_le16((u16)upper_32_bits(pa));  in wil_desc_addr_set()
37 /* Tx descriptor - MAC part
66  * bit 18..19 : l2_translation_type:2 00 - bypass, 01 - 802.3, 10 - 802.11
229 #define DMA_CFG_DESC_TX_0_L4_TYPE_MSK 0xC0000000 /* L4 type: 0-UDP, 2-TCP */
237 #define DMA_CFG_DESC_TX_OFFLOAD_CFG_L3T_IPV4_MSK 0x80 /* 1-IPv4, 0-IPv6 */
241 /* Tx descriptor - DMA part
247  * bit 11..12 : SBD - Segment Buffer Details
248  *		00 - Header Segment
249  *		01 - First Data Segment
250  *		10 - Medium Data Segment
251  *		11 - Last Data Segment
252  * bit     13 : TSE - TCP Segmentation Enable
253  * bit     14 : IIC - Directs the HW to Insert IPv4 Checksum
254  * bit     15 : ITC - Directs the HW to Insert TCP/UDP Checksum
255  * bit 16..20 : QID - The target QID that the packet should be stored
257  * bit     21 : PO - Pseudo header Offload:
258  *		0 - Use the pseudo header value from the TCP checksum field
259  *		1- Calculate Pseudo header Checksum
260  * bit     22 : NC - No UDP Checksum
262  * bit 30..31 : L4T - Layer 4 Type: 00 - UDP , 10 - TCP , 10, 11 - Reserved
271  * bit     31 : ip_version:1 1 - IPv4, 0 - IPv6
291 /* TSO type used in dma descriptor d0 bits 11-12 */
299 /* Rx descriptor - MAC part
301  * bit  0.. 3 : tid:4 The QoS (b3-0) TID Field
306  * bit 10..11 : frame_type:2 : The FC (b3-2) - MPDU Type
308  * bit 12..15 : frame_subtype:4 : The FC (b7-4) - Frame Subtype
316  * bit  8.. 9 : ds_bits:2 FC (b9-8)
331  * bit  3.. 4 : fc_protocol_ver:1 The FC (b1-0) - Protocol Version
332  * bit      5 : fc_order:1 The FC Control (b15) -Order
333  * bit  6.. 7 : qos_ack_policy:2 The QoS (b6-5) ack policy Field
336  * bit 10..14 : qos_reserved:5 The QoS (b14-10) Reserved field
352 /* Rx descriptor - DMA part
361  *		When the FFM bit is set bits 29-27 are used for
365  *		00 - UDP, 01 - TCP, 10, 11 - reserved
372  * bit     31 : ip_version:1 1 - IPv4, 0 - IPv6
417 /* IEEE 802.11, 8.5.2 EAPOL-Key frames */
506 	return WIL_GET_BITS(d->mac.d0, 0, 3);  in wil_rxdesc_tid()
511 	return WIL_GET_BITS(d->mac.d0, 4, 6);  in wil_rxdesc_cid()
516 	return (d->mac.d0 & RX_MAC_D0_MAC_ID_VALID) ?  in wil_rxdesc_mid()
517 		WIL_GET_BITS(d->mac.d0, 8, 9) : 0;  in wil_rxdesc_mid()
522 	return WIL_GET_BITS(d->mac.d0, 10, 11);  in wil_rxdesc_ftype()
527 	return WIL_GET_BITS(d->mac.d0, 12, 15);  in wil_rxdesc_subtype()
530 /* 1-st byte (with frame type/subtype) of FC field */
533 	return (u8)(WIL_GET_BITS(d->mac.d0, 10, 15) << 2);  in wil_rxdesc_fc1()
538 	return WIL_GET_BITS(d->mac.d0, 16, 27);  in wil_rxdesc_seq()
543 	return WIL_GET_BITS(d->mac.d0, 28, 31);  in wil_rxdesc_ext_subtype()
548 	return WIL_GET_BITS(d->mac.d0, 31, 31);  in wil_rxdesc_retry()
553 	return WIL_GET_BITS(d->mac.d1, 4, 5);  in wil_rxdesc_key_id()
558 	return WIL_GET_BITS(d->mac.d1, 7, 7);  in wil_rxdesc_security()
563 	return WIL_GET_BITS(d->mac.d1, 8, 9);  in wil_rxdesc_ds_bits()
568 	return WIL_GET_BITS(d->mac.d1, 21, 24);  in wil_rxdesc_mcs()
573 	return WIL_GET_BITS(d->mac.d1, 13, 14);  in wil_rxdesc_mcast()
578 	return (void *)skb->cb;  in wil_skb_rxdesc()
583 	return ring->swhead == ring->swtail;  in wil_ring_is_empty()
588 	return (ring->swtail + 1) % ring->size;  in wil_ring_next_tail()
593 	ring->swhead = (ring->swhead + n) % ring->size;  in wil_ring_advance_head()
598 	return wil_ring_next_tail(ring) == ring->swhead;  in wil_ring_is_full()
603 	struct ethhdr *eth = (void *)skb->data;  in wil_skb_get_da()
605 	return eth->h_dest;  in wil_skb_get_da()
610 	struct ethhdr *eth = (void *)skb->data;  in wil_skb_get_sa()
612 	return eth->h_source;  in wil_skb_get_sa()
619 	return is_unicast_ether_addr(da) && skb->sk &&  in wil_need_txstat()
620 	       (skb_shinfo(skb)->tx_flags & SKBTX_WIFI_STATUS);  in wil_need_txstat()
634 	u32 swhead = ring->swhead;  in wil_ring_used_tx()
635 	u32 swtail = ring->swtail;  in wil_ring_used_tx()
637 	return (ring->size + swhead - swtail) % ring->size;  in wil_ring_used_tx()
643 	return ring->size - wil_ring_used_tx(ring) - 1;  in wil_ring_avail_tx()
649 	return wil->use_enhanced_dma_hw ? 1 : 0;  in wil_get_min_tx_ring_id()
652 /* similar to ieee80211_ version, but FC contain only 1-st byte */
659 /* wil_val_in_range - check if value in [min,max) */
667 	struct skb_rx_info *skb_rx_info = (void *)skb->cb;  in wil_skb_get_cid()
669 	return skb_rx_info->rx_info.cid;  in wil_skb_get_cid()
674 	struct skb_rx_info *skb_rx_info = (void *)skb->cb;  in wil_skb_set_cid()
676 	skb_rx_info->rx_info.cid = cid;  in wil_skb_set_cid()
681 		  struct wil_net_stats *stats, bool gro);