1 /*- 2 * Copyright (c) 2012, 2015 Chelsio Communications, Inc. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 * 28 */ 29 30 #ifndef __CXGBEI_OFLD_H__ 31 #define __CXGBEI_OFLD_H__ 32 33 #include <dev/iscsi/icl.h> 34 35 enum { 36 CWT_SLEEPING = 1, 37 CWT_RUNNING = 2, 38 CWT_STOP = 3, 39 CWT_STOPPED = 4, 40 }; 41 42 struct cxgbei_worker_thread_softc { 43 struct mtx cwt_lock; 44 struct cv cwt_cv; 45 volatile int cwt_state; 46 47 TAILQ_HEAD(, icl_cxgbei_conn) rx_head; 48 } __aligned(CACHE_LINE_SIZE); 49 50 #define CXGBEI_CONN_SIGNATURE 0x56788765 51 52 enum { 53 RXF_ACTIVE = 1 << 0, /* In the worker thread's queue */ 54 }; 55 56 struct icl_cxgbei_conn { 57 struct icl_conn ic; 58 59 /* cxgbei specific stuff goes here. */ 60 uint32_t icc_signature; 61 int ulp_submode; 62 struct adapter *sc; 63 struct toepcb *toep; 64 65 /* Receive related. */ 66 u_int rx_flags; /* protected by so_rcv lock */ 67 u_int cwt; 68 STAILQ_HEAD(, icl_pdu) rcvd_pdus; /* protected by so_rcv lock */ 69 TAILQ_ENTRY(icl_cxgbei_conn) rx_link; /* protected by cwt lock */ 70 }; 71 72 static inline struct icl_cxgbei_conn * 73 ic_to_icc(struct icl_conn *ic) 74 { 75 76 return (__containerof(ic, struct icl_cxgbei_conn, ic)); 77 } 78 79 /* PDU flags and signature. */ 80 enum { 81 ICPF_RX_HDR = 1 << 0, /* PDU header received. */ 82 ICPF_RX_FLBUF = 1 << 1, /* PDU payload received in a freelist. */ 83 ICPF_RX_DDP = 1 << 2, /* PDU payload DDP'd. */ 84 ICPF_RX_STATUS = 1 << 3, /* Rx status received. */ 85 ICPF_HCRC_ERR = 1 << 4, /* Header digest error. */ 86 ICPF_DCRC_ERR = 1 << 5, /* Data digest error. */ 87 ICPF_PAD_ERR = 1 << 6, /* Padding error. */ 88 89 CXGBEI_PDU_SIGNATURE = 0x12344321 90 }; 91 92 struct icl_cxgbei_pdu { 93 struct icl_pdu ip; 94 95 /* cxgbei specific stuff goes here. */ 96 uint32_t icp_signature; 97 uint32_t icp_seq; /* For debug only */ 98 u_int icp_flags; 99 }; 100 101 static inline struct icl_cxgbei_pdu * 102 ip_to_icp(struct icl_pdu *ip) 103 { 104 105 return (__containerof(ip, struct icl_cxgbei_pdu, ip)); 106 } 107 108 struct cxgbei_data { 109 u_int max_tx_pdu_len; 110 u_int max_rx_pdu_len; 111 112 u_int ddp_threshold; 113 struct ppod_region pr; 114 115 struct sysctl_ctx_list ctx; /* from uld_activate to deactivate */ 116 counter_u64_t ddp_setup_ok; 117 counter_u64_t ddp_setup_error; 118 counter_u64_t ddp_bytes; 119 counter_u64_t ddp_pdus; 120 counter_u64_t fl_bytes; 121 counter_u64_t fl_pdus; 122 }; 123 124 /* cxgbei.c */ 125 u_int cxgbei_select_worker_thread(struct icl_cxgbei_conn *); 126 127 /* icl_cxgbei.c */ 128 int icl_cxgbei_mod_load(void); 129 int icl_cxgbei_mod_unload(void); 130 #endif 131