diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c | 140 |
1 files changed, 107 insertions, 33 deletions
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c index 69f460b1a4e0..eba510694cb6 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c @@ -138,6 +138,113 @@ static const char *brcmf_fws_get_tlv_name(enum brcmf_fws_tlv_type id) #define BRCMF_FWS_PSQ_LEN 256 /** + * enum brcmf_fws_skb_state - indicates processing state of skb. + */ +enum brcmf_fws_skb_state { + WLFC_PKTTYPE_NEW, + WLFC_PKTTYPE_DELAYED, + WLFC_PKTTYPE_SUPPRESSED, + WLFC_PKTTYPE_MAX +}; + +/** + * struct brcmf_skbuff_cb - control buffer associated with skbuff. + * + * @if_flags: holds interface index and packet related flags. + * @da: destination MAC address extracted from skbuff once. + * @htod: host to device packet identifier (used in PKTTAG tlv). + * @needs_hdr: the packet does not yet have a BDC header. + * @state: transmit state of the packet. + * @mac: descriptor related to destination for this packet. + * + * This information is stored in control buffer struct sk_buff::cb, which + * provides 48 bytes of storage so this structure should not exceed that. + */ +struct brcmf_skbuff_cb { + u16 if_flags; + u8 da[ETH_ALEN]; + u32 htod; + u8 needs_hdr; + enum brcmf_fws_skb_state state; + struct brcmf_fws_mac_descriptor *mac; +}; + +/** + * macro casting skbuff control buffer to struct brcmf_skbuff_cb. + */ +#define brcmf_skbcb(skb) ((struct brcmf_skbuff_cb *)((skb)->cb)) + +/** + * sk_buff control if flags + * + * b[11] - packet sent upon firmware request. + * b[10] - packet only contains signalling data. + * b[9] - packet is a tx packet. + * b[8] - packet uses FIFO credit (non-pspoll). + * b[7] - interface in AP mode. + * b[6:4] - AC FIFO number. + * b[3:0] - interface index. + */ +#define BRCMF_SKB_IF_FLAGS_REQUESTED_MASK 0x0800 +#define BRCMF_SKB_IF_FLAGS_REQUESTED_SHIFT 11 +#define BRCMF_SKB_IF_FLAGS_SIGNAL_ONLY_MASK 0x0400 +#define BRCMF_SKB_IF_FLAGS_SIGNAL_ONLY_SHIFT 10 +#define BRCMF_SKB_IF_FLAGS_TRANSMIT_MASK 0x0200 +#define BRCMF_SKB_IF_FLAGS_TRANSMIT_SHIFT 9 +#define BRCMF_SKB_IF_FLAGS_CREDITCHECK_MASK 0x0100 +#define BRCMF_SKB_IF_FLAGS_CREDITCHECK_SHIFT 8 +#define BRCMF_SKB_IF_FLAGS_IF_AP_MASK 0x0080 +#define BRCMF_SKB_IF_FLAGS_IF_AP_SHIFT 7 +#define BRCMF_SKB_IF_FLAGS_FIFO_MASK 0x0070 +#define BRCMF_SKB_IF_FLAGS_FIFO_SHIFT 4 +#define BRCMF_SKB_IF_FLAGS_INDEX_MASK 0x000f +#define BRCMF_SKB_IF_FLAGS_INDEX_SHIFT 0 + +#define brcmf_skb_if_flags_set_field(skb, field, value) \ + brcmu_maskset16(&(brcmf_skbcb(skb)->if_flags), \ + BRCMF_SKB_IF_FLAGS_ ## field ## _MASK, \ + BRCMF_SKB_IF_FLAGS_ ## field ## _SHIFT, (value)) +#define brcmf_skb_if_flags_get_field(skb, field) \ + brcmu_maskget16(brcmf_skbcb(skb)->if_flags, \ + BRCMF_SKB_IF_FLAGS_ ## field ## _MASK, \ + BRCMF_SKB_IF_FLAGS_ ## field ## _SHIFT) + +/** + * sk_buff control packet identifier + * + * 32-bit packet identifier used in PKTTAG tlv from host to dongle. + * + * - Generated at the host (e.g. dhd) + * - Seen as a generic sequence number by firmware except for the flags field. + * + * Generation : b[31] => generation number for this packet [host->fw] + * OR, current generation number [fw->host] + * Flags : b[30:27] => command, status flags + * FIFO-AC : b[26:24] => AC-FIFO id + * h-slot : b[23:8] => hanger-slot + * freerun : b[7:0] => A free running counter + */ +#define BRCMF_SKB_HTOD_TAG_GENERATION_MASK 0x80000000 +#define BRCMF_SKB_HTOD_TAG_GENERATION_SHIFT 31 +#define BRCMF_SKB_HTOD_TAG_FLAGS_MASK 0x78000000 +#define BRCMF_SKB_HTOD_TAG_FLAGS_SHIFT 27 +#define BRCMF_SKB_HTOD_TAG_FIFO_MASK 0x07000000 +#define BRCMF_SKB_HTOD_TAG_FIFO_SHIFT 24 +#define BRCMF_SKB_HTOD_TAG_HSLOT_MASK 0x00ffff00 +#define BRCMF_SKB_HTOD_TAG_HSLOT_SHIFT 8 +#define BRCMF_SKB_HTOD_TAG_FREERUN_MASK 0x000000ff +#define BRCMF_SKB_HTOD_TAG_FREERUN_SHIFT 0 + +#define brcmf_skb_htod_tag_set_field(skb, field, value) \ + brcmu_maskset32(&(brcmf_skbcb(skb)->htod_tag), \ + BRCMF_SKB_HTOD_TAG_ ## field ## _MASK, \ + BRCMF_SKB_HTOD_TAG_ ## field ## _SHIFT, (value)) +#define brcmf_skb_htod_tag_get_field(skb, field) \ + brcmu_maskget32(brcmf_skbcb(skb)->htod_tag, \ + BRCMF_SKB_HTOD_TAG_ ## field ## _MASK, \ + BRCMF_SKB_HTOD_TAG_ ## field ## _SHIFT) + +/** * struct brcmf_fws_mac_descriptor - firmware signalling data per node/interface * * @occupied: slot is in use. @@ -160,39 +267,6 @@ struct brcmf_fws_mac_descriptor { struct pktq psq; }; -/** - * FWFC packet identifier - * - * 32-bit packet identifier used in PKTTAG tlv from host to dongle. - * - * - Generated at the host (e.g. dhd) - * - Seen as a generic sequence number by wlc except the flags field - * - * Generation : b[31] => generation number for this packet [host->fw] - * OR, current generation number [fw->host] - * Flags : b[30:27] => command, status flags - * FIFO-AC : b[26:24] => AC-FIFO id - * h-slot : b[23:8] => hanger-slot - * freerun : b[7:0] => A free running counter - */ -#define BRCMF_FWS_PKTTAG_GENERATION_MASK 0x80000000 -#define BRCMF_FWS_PKTTAG_GENERATION_SHIFT 31 -#define BRCMF_FWS_PKTTAG_FLAGS_MASK 0x78000000 -#define BRCMF_FWS_PKTTAG_FLAGS_SHIFT 27 -#define BRCMF_FWS_PKTTAG_FIFO_MASK 0x07000000 -#define BRCMF_FWS_PKTTAG_FIFO_SHIFT 24 -#define BRCMF_FWS_PKTTAG_HSLOT_MASK 0x00ffff00 -#define BRCMF_FWS_PKTTAG_HSLOT_SHIFT 8 -#define BRCMF_FWS_PKTTAG_FREERUN_MASK 0x000000ff -#define BRCMF_FWS_PKTTAG_FREERUN_SHIFT 0 - -#define brcmf_fws_pkttag_set_field(var, field, value) \ - brcmu_maskset32((var), BRCMF_FWS_PKTTAG_ ## field ## _MASK, \ - BRCMF_FWS_PKTTAG_ ## field ## _SHIFT, (value)) -#define brcmf_fws_pkttag_get_field(var, field) \ - brcmu_maskget32((var), BRCMF_FWS_PKTTAG_ ## field ## _MASK, \ - BRCMF_FWS_PKTTAG_ ## field ## _SHIFT) - struct brcmf_fws_info { struct brcmf_pub *drvr; struct brcmf_fws_stats stats; |