500 static void prb_del_retire_blk_timer(struct tpacket_kbdq_core *pkc)  in prb_del_retire_blk_timer()  argument
502 	del_timer_sync(&pkc->retire_blk_timer);  in prb_del_retire_blk_timer()
508 	struct tpacket_kbdq_core *pkc;  in prb_shutdown_retire_blk_timer()  local
510 	pkc = GET_PBDQC_FROM_RB(&po->rx_ring);  in prb_shutdown_retire_blk_timer()
513 	pkc->delete_blk_timer = 1;  in prb_shutdown_retire_blk_timer()
516 	prb_del_retire_blk_timer(pkc);  in prb_shutdown_retire_blk_timer()
521 	struct tpacket_kbdq_core *pkc;  in prb_setup_retire_blk_timer()  local
523 	pkc = GET_PBDQC_FROM_RB(&po->rx_ring);  in prb_setup_retire_blk_timer()
524 	timer_setup(&pkc->retire_blk_timer, prb_retire_rx_blk_timer_expired,  in prb_setup_retire_blk_timer()
526 	pkc->retire_blk_timer.expires = jiffies;  in prb_setup_retire_blk_timer()
610 static void _prb_refresh_rx_retire_blk_timer(struct tpacket_kbdq_core *pkc)  in _prb_refresh_rx_retire_blk_timer()  argument
612 	mod_timer(&pkc->retire_blk_timer,  in _prb_refresh_rx_retire_blk_timer()
613 			jiffies + pkc->tov_in_jiffies);  in _prb_refresh_rx_retire_blk_timer()
614 	pkc->last_kactive_blk_num = pkc->kactive_blk_num;  in _prb_refresh_rx_retire_blk_timer()
644 	struct tpacket_kbdq_core *pkc = GET_PBDQC_FROM_RB(&po->rx_ring);  in prb_retire_rx_blk_timer_expired()  local
650 	frozen = prb_queue_frozen(pkc);  in prb_retire_rx_blk_timer_expired()
651 	pbd = GET_CURR_PBLOCK_DESC_FROM_CORE(pkc);  in prb_retire_rx_blk_timer_expired()
653 	if (unlikely(pkc->delete_blk_timer))  in prb_retire_rx_blk_timer_expired()
667 		write_lock(&pkc->blk_fill_in_prog_lock);  in prb_retire_rx_blk_timer_expired()
668 		write_unlock(&pkc->blk_fill_in_prog_lock);  in prb_retire_rx_blk_timer_expired()
671 	if (pkc->last_kactive_blk_num == pkc->kactive_blk_num) {  in prb_retire_rx_blk_timer_expired()
677 			prb_retire_current_block(pkc, po, TP_STATUS_BLK_TMO);  in prb_retire_rx_blk_timer_expired()
678 			if (!prb_dispatch_next_block(pkc, po))  in prb_retire_rx_blk_timer_expired()
700 				prb_open_block(pkc, pbd);  in prb_retire_rx_blk_timer_expired()
707 	_prb_refresh_rx_retire_blk_timer(pkc);  in prb_retire_rx_blk_timer_expired()
798 static void prb_thaw_queue(struct tpacket_kbdq_core *pkc)  in prb_thaw_queue()  argument
800 	pkc->reset_pending_on_curr_blk = 0;  in prb_thaw_queue()
870 static void prb_freeze_queue(struct tpacket_kbdq_core *pkc,  in prb_freeze_queue()  argument
873 	pkc->reset_pending_on_curr_blk = 1;  in prb_freeze_queue()
885 static void *prb_dispatch_next_block(struct tpacket_kbdq_core *pkc,  in prb_dispatch_next_block()  argument
893 	pbd = GET_CURR_PBLOCK_DESC_FROM_CORE(pkc);  in prb_dispatch_next_block()
897 		prb_freeze_queue(pkc, po);  in prb_dispatch_next_block()
906 	prb_open_block(pkc, pbd);  in prb_dispatch_next_block()
907 	return (void *)pkc->nxt_offset;  in prb_dispatch_next_block()
910 static void prb_retire_current_block(struct tpacket_kbdq_core *pkc,  in prb_retire_current_block()  argument
913 	struct tpacket_block_desc *pbd = GET_CURR_PBLOCK_DESC_FROM_CORE(pkc);  in prb_retire_current_block()
928 			write_lock(&pkc->blk_fill_in_prog_lock);  in prb_retire_current_block()
929 			write_unlock(&pkc->blk_fill_in_prog_lock);  in prb_retire_current_block()
931 		prb_close_block(pkc, pbd, po, status);  in prb_retire_current_block()
941 static int prb_queue_frozen(struct tpacket_kbdq_core *pkc)  in prb_queue_frozen()  argument
943 	return pkc->reset_pending_on_curr_blk;  in prb_queue_frozen()
947 	__releases(&pkc->blk_fill_in_prog_lock)  in prb_clear_blk_fill_status()
949 	struct tpacket_kbdq_core *pkc  = GET_PBDQC_FROM_RB(rb);  in prb_clear_blk_fill_status()  local
951 	read_unlock(&pkc->blk_fill_in_prog_lock);  in prb_clear_blk_fill_status()
954 static void prb_fill_rxhash(struct tpacket_kbdq_core *pkc,  in prb_fill_rxhash()  argument
957 	ppd->hv1.tp_rxhash = skb_get_hash(pkc->skb);  in prb_fill_rxhash()
960 static void prb_clear_rxhash(struct tpacket_kbdq_core *pkc,  in prb_clear_rxhash()  argument
966 static void prb_fill_vlan_info(struct tpacket_kbdq_core *pkc,  in prb_fill_vlan_info()  argument
969 	if (skb_vlan_tag_present(pkc->skb)) {  in prb_fill_vlan_info()
970 		ppd->hv1.tp_vlan_tci = skb_vlan_tag_get(pkc->skb);  in prb_fill_vlan_info()
971 		ppd->hv1.tp_vlan_tpid = ntohs(pkc->skb->vlan_proto);  in prb_fill_vlan_info()
980 static void prb_run_all_ft_ops(struct tpacket_kbdq_core *pkc,  in prb_run_all_ft_ops()  argument
984 	prb_fill_vlan_info(pkc, ppd);  in prb_run_all_ft_ops()
986 	if (pkc->feature_req_word & TP_FT_REQ_FILL_RXHASH)  in prb_run_all_ft_ops()
987 		prb_fill_rxhash(pkc, ppd);  in prb_run_all_ft_ops()
989 		prb_clear_rxhash(pkc, ppd);  in prb_run_all_ft_ops()
993 				struct tpacket_kbdq_core *pkc,  in prb_fill_curr_block()  argument
996 	__acquires(&pkc->blk_fill_in_prog_lock)  in prb_fill_curr_block()
1002 	pkc->prev = curr;  in prb_fill_curr_block()
1003 	pkc->nxt_offset += TOTAL_PKT_LEN_INCL_ALIGN(len);  in prb_fill_curr_block()
1006 	read_lock(&pkc->blk_fill_in_prog_lock);  in prb_fill_curr_block()
1007 	prb_run_all_ft_ops(pkc, ppd);  in prb_fill_curr_block()
1016 	struct tpacket_kbdq_core *pkc;  in __packet_lookup_frame_in_block()  local
1020 	pkc = GET_PBDQC_FROM_RB(&po->rx_ring);  in __packet_lookup_frame_in_block()
1021 	pbd = GET_CURR_PBLOCK_DESC_FROM_CORE(pkc);  in __packet_lookup_frame_in_block()
1024 	if (prb_queue_frozen(pkc)) {  in __packet_lookup_frame_in_block()
1039 			prb_open_block(pkc, pbd);  in __packet_lookup_frame_in_block()
1044 	curr = pkc->nxt_offset;  in __packet_lookup_frame_in_block()
1045 	pkc->skb = skb;  in __packet_lookup_frame_in_block()
1046 	end = (char *)pbd + pkc->kblk_size;  in __packet_lookup_frame_in_block()
1050 		prb_fill_curr_block(curr, pkc, pbd, len);  in __packet_lookup_frame_in_block()
1055 	prb_retire_current_block(pkc, po, 0);  in __packet_lookup_frame_in_block()
1058 	curr = (char *)prb_dispatch_next_block(pkc, po);  in __packet_lookup_frame_in_block()
1060 		pbd = GET_CURR_PBLOCK_DESC_FROM_CORE(pkc);  in __packet_lookup_frame_in_block()
1061 		prb_fill_curr_block(curr, pkc, pbd, len);  in __packet_lookup_frame_in_block()
1097 	struct tpacket_kbdq_core *pkc  = GET_PBDQC_FROM_RB(rb);  in prb_lookup_block()  local
1098 	struct tpacket_block_desc *pbd = GET_PBLOCK_DESC(pkc, idx);  in prb_lookup_block()