^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) * cxgb4i.c: Chelsio T4 iSCSI driver.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Copyright (c) 2010-2015 Chelsio Communications, Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * This program is free software; you can redistribute it and/or modify
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * it under the terms of the GNU General Public License as published by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * the Free Software Foundation.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * Written by: Karen Xie (kxie@chelsio.com)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) * Rakesh Ranjan (rranjan@chelsio.com)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #define pr_fmt(fmt) KBUILD_MODNAME ":%s: " fmt, __func__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/moduleparam.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <scsi/scsi_host.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <net/tcp.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <net/dst.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <linux/netdevice.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <net/addrconf.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #include "t4_regs.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #include "t4_msg.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #include "cxgb4.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #include "cxgb4_uld.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #include "t4fw_api.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #include "l2t.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #include "cxgb4i.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #include "clip_tbl.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) static unsigned int dbg_level;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #include "../libcxgbi.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #ifdef CONFIG_CHELSIO_T4_DCB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #include <net/dcbevent.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #include "cxgb4_dcb.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #define DRV_MODULE_NAME "cxgb4i"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #define DRV_MODULE_DESC "Chelsio T4-T6 iSCSI Driver"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #define DRV_MODULE_VERSION "0.9.5-ko"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) #define DRV_MODULE_RELDATE "Apr. 2015"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) static char version[] =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) DRV_MODULE_DESC " " DRV_MODULE_NAME
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) " v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) MODULE_AUTHOR("Chelsio Communications, Inc.");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) MODULE_DESCRIPTION(DRV_MODULE_DESC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) MODULE_VERSION(DRV_MODULE_VERSION);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) module_param(dbg_level, uint, 0644);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) MODULE_PARM_DESC(dbg_level, "Debug flag (default=0)");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) #define CXGB4I_DEFAULT_10G_RCV_WIN (256 * 1024)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) static int cxgb4i_rcv_win = -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) module_param(cxgb4i_rcv_win, int, 0644);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) MODULE_PARM_DESC(cxgb4i_rcv_win, "TCP receive window in bytes");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) #define CXGB4I_DEFAULT_10G_SND_WIN (128 * 1024)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) static int cxgb4i_snd_win = -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) module_param(cxgb4i_snd_win, int, 0644);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) MODULE_PARM_DESC(cxgb4i_snd_win, "TCP send window in bytes");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) static int cxgb4i_rx_credit_thres = 10 * 1024;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) module_param(cxgb4i_rx_credit_thres, int, 0644);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) MODULE_PARM_DESC(cxgb4i_rx_credit_thres,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) "RX credits return threshold in bytes (default=10KB)");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) static unsigned int cxgb4i_max_connect = (8 * 1024);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) module_param(cxgb4i_max_connect, uint, 0644);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) MODULE_PARM_DESC(cxgb4i_max_connect, "Maximum number of connections");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) static unsigned short cxgb4i_sport_base = 20000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) module_param(cxgb4i_sport_base, ushort, 0644);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) MODULE_PARM_DESC(cxgb4i_sport_base, "Starting port number (default 20000)");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) typedef void (*cxgb4i_cplhandler_func)(struct cxgbi_device *, struct sk_buff *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) static void *t4_uld_add(const struct cxgb4_lld_info *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) static int t4_uld_rx_handler(void *, const __be64 *, const struct pkt_gl *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) static int t4_uld_state_change(void *, enum cxgb4_state state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) static inline int send_tx_flowc_wr(struct cxgbi_sock *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) static const struct cxgb4_uld_info cxgb4i_uld_info = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) .name = DRV_MODULE_NAME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) .nrxq = MAX_ULD_QSETS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) .ntxq = MAX_ULD_QSETS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) .rxq_size = 1024,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) .lro = false,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) .add = t4_uld_add,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) .rx_handler = t4_uld_rx_handler,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) .state_change = t4_uld_state_change,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) static struct scsi_host_template cxgb4i_host_template = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) .module = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) .name = DRV_MODULE_NAME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) .proc_name = DRV_MODULE_NAME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) .can_queue = CXGB4I_SCSI_HOST_QDEPTH,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) .queuecommand = iscsi_queuecommand,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) .change_queue_depth = scsi_change_queue_depth,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) .sg_tablesize = SG_ALL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) .max_sectors = 0xFFFF,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) .cmd_per_lun = ISCSI_DEF_CMD_PER_LUN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) .eh_timed_out = iscsi_eh_cmd_timed_out,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) .eh_abort_handler = iscsi_eh_abort,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) .eh_device_reset_handler = iscsi_eh_device_reset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) .eh_target_reset_handler = iscsi_eh_recover_target,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) .target_alloc = iscsi_target_alloc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) .dma_boundary = PAGE_SIZE - 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) .this_id = -1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) .track_queue_depth = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) static struct iscsi_transport cxgb4i_iscsi_transport = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) .owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) .name = DRV_MODULE_NAME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) .caps = CAP_RECOVERY_L0 | CAP_MULTI_R2T | CAP_HDRDGST |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) CAP_DATADGST | CAP_DIGEST_OFFLOAD |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) CAP_PADDING_OFFLOAD | CAP_TEXT_NEGO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) .attr_is_visible = cxgbi_attr_is_visible,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) .get_host_param = cxgbi_get_host_param,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) .set_host_param = cxgbi_set_host_param,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) /* session management */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) .create_session = cxgbi_create_session,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) .destroy_session = cxgbi_destroy_session,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) .get_session_param = iscsi_session_get_param,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) /* connection management */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) .create_conn = cxgbi_create_conn,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) .bind_conn = cxgbi_bind_conn,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) .destroy_conn = iscsi_tcp_conn_teardown,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) .start_conn = iscsi_conn_start,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) .stop_conn = iscsi_conn_stop,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) .get_conn_param = iscsi_conn_get_param,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) .set_param = cxgbi_set_conn_param,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) .get_stats = cxgbi_get_conn_stats,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) /* pdu xmit req from user space */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) .send_pdu = iscsi_conn_send_pdu,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) /* task */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) .init_task = iscsi_tcp_task_init,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) .xmit_task = iscsi_tcp_task_xmit,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) .cleanup_task = cxgbi_cleanup_task,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) /* pdu */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) .alloc_pdu = cxgbi_conn_alloc_pdu,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) .init_pdu = cxgbi_conn_init_pdu,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) .xmit_pdu = cxgbi_conn_xmit_pdu,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) .parse_pdu_itt = cxgbi_parse_pdu_itt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) /* TCP connect/disconnect */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) .get_ep_param = cxgbi_get_ep_param,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) .ep_connect = cxgbi_ep_connect,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) .ep_poll = cxgbi_ep_poll,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) .ep_disconnect = cxgbi_ep_disconnect,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) /* Error recovery timeout call */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) .session_recovery_timedout = iscsi_session_recovery_timedout,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) #ifdef CONFIG_CHELSIO_T4_DCB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) cxgb4_dcb_change_notify(struct notifier_block *, unsigned long, void *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) static struct notifier_block cxgb4_dcb_change = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) .notifier_call = cxgb4_dcb_change_notify,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) static struct scsi_transport_template *cxgb4i_stt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) * CPL (Chelsio Protocol Language) defines a message passing interface between
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) * the host driver and Chelsio asic.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) * The section below implments CPLs that related to iscsi tcp connection
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) * open/close/abort and data send/receive.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) #define RCV_BUFSIZ_MASK 0x3FFU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) #define MAX_IMM_TX_PKT_LEN 256
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) static int push_tx_frames(struct cxgbi_sock *, int);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) * is_ofld_imm - check whether a packet can be sent as immediate data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) * @skb: the packet
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) * Returns true if a packet can be sent as an offload WR with immediate
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) * data. We currently use the same limit as for Ethernet packets.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) static inline bool is_ofld_imm(const struct sk_buff *skb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) int len = skb->len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) if (likely(cxgbi_skcb_test_flag(skb, SKCBF_TX_NEED_HDR)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) len += sizeof(struct fw_ofld_tx_data_wr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) if (likely(cxgbi_skcb_test_flag((struct sk_buff *)skb, SKCBF_TX_ISO)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) len += sizeof(struct cpl_tx_data_iso);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) return (len <= MAX_IMM_OFLD_TX_DATA_WR_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) static void send_act_open_req(struct cxgbi_sock *csk, struct sk_buff *skb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) struct l2t_entry *e)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(csk->cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) int wscale = cxgbi_sock_compute_wscale(csk->mss_idx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) unsigned long long opt0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) unsigned int opt2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) unsigned int qid_atid = ((unsigned int)csk->atid) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) (((unsigned int)csk->rss_qid) << 14);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) opt0 = KEEP_ALIVE_F |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) WND_SCALE_V(wscale) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) MSS_IDX_V(csk->mss_idx) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) L2T_IDX_V(((struct l2t_entry *)csk->l2t)->idx) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) TX_CHAN_V(csk->tx_chan) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) SMAC_SEL_V(csk->smac_idx) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) ULP_MODE_V(ULP_MODE_ISCSI) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) RCV_BUFSIZ_V(csk->rcv_win >> 10);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) opt2 = RX_CHANNEL_V(0) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) RSS_QUEUE_VALID_F |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) RSS_QUEUE_V(csk->rss_qid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) if (is_t4(lldi->adapter_type)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) struct cpl_act_open_req *req =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) (struct cpl_act_open_req *)skb->head;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) INIT_TP_WR(req, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_ACT_OPEN_REQ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) qid_atid));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) req->local_port = csk->saddr.sin_port;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) req->peer_port = csk->daddr.sin_port;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) req->local_ip = csk->saddr.sin_addr.s_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) req->peer_ip = csk->daddr.sin_addr.s_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) req->opt0 = cpu_to_be64(opt0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) req->params = cpu_to_be32(cxgb4_select_ntuple(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) csk->cdev->ports[csk->port_id],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) csk->l2t));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) opt2 |= RX_FC_VALID_F;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) req->opt2 = cpu_to_be32(opt2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) "csk t4 0x%p, %pI4:%u-%pI4:%u, atid %d, qid %u.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) csk, &req->local_ip, ntohs(req->local_port),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) &req->peer_ip, ntohs(req->peer_port),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) csk->atid, csk->rss_qid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) } else if (is_t5(lldi->adapter_type)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) struct cpl_t5_act_open_req *req =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) (struct cpl_t5_act_open_req *)skb->head;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) u32 isn = (prandom_u32() & ~7UL) - 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) INIT_TP_WR(req, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_ACT_OPEN_REQ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) qid_atid));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) req->local_port = csk->saddr.sin_port;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) req->peer_port = csk->daddr.sin_port;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) req->local_ip = csk->saddr.sin_addr.s_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) req->peer_ip = csk->daddr.sin_addr.s_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) req->opt0 = cpu_to_be64(opt0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) req->params = cpu_to_be64(FILTER_TUPLE_V(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) cxgb4_select_ntuple(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) csk->cdev->ports[csk->port_id],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) csk->l2t)));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) req->rsvd = cpu_to_be32(isn);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) opt2 |= T5_ISS_VALID;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) opt2 |= T5_OPT_2_VALID_F;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) req->opt2 = cpu_to_be32(opt2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) "csk t5 0x%p, %pI4:%u-%pI4:%u, atid %d, qid %u.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) csk, &req->local_ip, ntohs(req->local_port),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) &req->peer_ip, ntohs(req->peer_port),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) csk->atid, csk->rss_qid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) struct cpl_t6_act_open_req *req =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) (struct cpl_t6_act_open_req *)skb->head;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) u32 isn = (prandom_u32() & ~7UL) - 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) INIT_TP_WR(req, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_ACT_OPEN_REQ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) qid_atid));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) req->local_port = csk->saddr.sin_port;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) req->peer_port = csk->daddr.sin_port;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) req->local_ip = csk->saddr.sin_addr.s_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) req->peer_ip = csk->daddr.sin_addr.s_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) req->opt0 = cpu_to_be64(opt0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) req->params = cpu_to_be64(FILTER_TUPLE_V(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) cxgb4_select_ntuple(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) csk->cdev->ports[csk->port_id],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) csk->l2t)));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) req->rsvd = cpu_to_be32(isn);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) opt2 |= T5_ISS_VALID;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) opt2 |= RX_FC_DISABLE_F;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) opt2 |= T5_OPT_2_VALID_F;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) req->opt2 = cpu_to_be32(opt2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) req->rsvd2 = cpu_to_be32(0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) req->opt3 = cpu_to_be32(0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) "csk t6 0x%p, %pI4:%u-%pI4:%u, atid %d, qid %u.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) csk, &req->local_ip, ntohs(req->local_port),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) &req->peer_ip, ntohs(req->peer_port),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) csk->atid, csk->rss_qid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) set_wr_txq(skb, CPL_PRIORITY_SETUP, csk->port_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) pr_info_ipaddr("t%d csk 0x%p,%u,0x%lx,%u, rss_qid %u.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) (&csk->saddr), (&csk->daddr),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) CHELSIO_CHIP_VERSION(lldi->adapter_type), csk,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) csk->state, csk->flags, csk->atid, csk->rss_qid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) cxgb4_l2t_send(csk->cdev->ports[csk->port_id], skb, csk->l2t);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) #if IS_ENABLED(CONFIG_IPV6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) static void send_act_open_req6(struct cxgbi_sock *csk, struct sk_buff *skb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) struct l2t_entry *e)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(csk->cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) int wscale = cxgbi_sock_compute_wscale(csk->mss_idx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) unsigned long long opt0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) unsigned int opt2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) unsigned int qid_atid = ((unsigned int)csk->atid) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) (((unsigned int)csk->rss_qid) << 14);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) opt0 = KEEP_ALIVE_F |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) WND_SCALE_V(wscale) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) MSS_IDX_V(csk->mss_idx) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) L2T_IDX_V(((struct l2t_entry *)csk->l2t)->idx) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) TX_CHAN_V(csk->tx_chan) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) SMAC_SEL_V(csk->smac_idx) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) ULP_MODE_V(ULP_MODE_ISCSI) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) RCV_BUFSIZ_V(csk->rcv_win >> 10);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) opt2 = RX_CHANNEL_V(0) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) RSS_QUEUE_VALID_F |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) RSS_QUEUE_V(csk->rss_qid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) if (is_t4(lldi->adapter_type)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) struct cpl_act_open_req6 *req =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) (struct cpl_act_open_req6 *)skb->head;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) INIT_TP_WR(req, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_ACT_OPEN_REQ6,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) qid_atid));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) req->local_port = csk->saddr6.sin6_port;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) req->peer_port = csk->daddr6.sin6_port;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) req->local_ip_hi = *(__be64 *)(csk->saddr6.sin6_addr.s6_addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) req->local_ip_lo = *(__be64 *)(csk->saddr6.sin6_addr.s6_addr +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) 8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) req->peer_ip_hi = *(__be64 *)(csk->daddr6.sin6_addr.s6_addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) req->peer_ip_lo = *(__be64 *)(csk->daddr6.sin6_addr.s6_addr +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) 8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) req->opt0 = cpu_to_be64(opt0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) opt2 |= RX_FC_VALID_F;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) req->opt2 = cpu_to_be32(opt2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) req->params = cpu_to_be32(cxgb4_select_ntuple(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) csk->cdev->ports[csk->port_id],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) csk->l2t));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) } else if (is_t5(lldi->adapter_type)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) struct cpl_t5_act_open_req6 *req =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) (struct cpl_t5_act_open_req6 *)skb->head;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) INIT_TP_WR(req, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_ACT_OPEN_REQ6,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) qid_atid));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) req->local_port = csk->saddr6.sin6_port;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) req->peer_port = csk->daddr6.sin6_port;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) req->local_ip_hi = *(__be64 *)(csk->saddr6.sin6_addr.s6_addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) req->local_ip_lo = *(__be64 *)(csk->saddr6.sin6_addr.s6_addr +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) 8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) req->peer_ip_hi = *(__be64 *)(csk->daddr6.sin6_addr.s6_addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) req->peer_ip_lo = *(__be64 *)(csk->daddr6.sin6_addr.s6_addr +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) 8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) req->opt0 = cpu_to_be64(opt0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) opt2 |= T5_OPT_2_VALID_F;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) req->opt2 = cpu_to_be32(opt2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) req->params = cpu_to_be64(FILTER_TUPLE_V(cxgb4_select_ntuple(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) csk->cdev->ports[csk->port_id],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) csk->l2t)));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) struct cpl_t6_act_open_req6 *req =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) (struct cpl_t6_act_open_req6 *)skb->head;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) INIT_TP_WR(req, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_ACT_OPEN_REQ6,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) qid_atid));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) req->local_port = csk->saddr6.sin6_port;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) req->peer_port = csk->daddr6.sin6_port;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) req->local_ip_hi = *(__be64 *)(csk->saddr6.sin6_addr.s6_addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) req->local_ip_lo = *(__be64 *)(csk->saddr6.sin6_addr.s6_addr +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) 8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) req->peer_ip_hi = *(__be64 *)(csk->daddr6.sin6_addr.s6_addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) req->peer_ip_lo = *(__be64 *)(csk->daddr6.sin6_addr.s6_addr +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) 8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) req->opt0 = cpu_to_be64(opt0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) opt2 |= RX_FC_DISABLE_F;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) opt2 |= T5_OPT_2_VALID_F;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) req->opt2 = cpu_to_be32(opt2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) req->params = cpu_to_be64(FILTER_TUPLE_V(cxgb4_select_ntuple(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) csk->cdev->ports[csk->port_id],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) csk->l2t)));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) req->rsvd2 = cpu_to_be32(0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) req->opt3 = cpu_to_be32(0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) set_wr_txq(skb, CPL_PRIORITY_SETUP, csk->port_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) pr_info("t%d csk 0x%p,%u,0x%lx,%u, [%pI6]:%u-[%pI6]:%u, rss_qid %u.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) CHELSIO_CHIP_VERSION(lldi->adapter_type), csk, csk->state,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) csk->flags, csk->atid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) &csk->saddr6.sin6_addr, ntohs(csk->saddr.sin_port),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) &csk->daddr6.sin6_addr, ntohs(csk->daddr.sin_port),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) csk->rss_qid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) cxgb4_l2t_send(csk->cdev->ports[csk->port_id], skb, csk->l2t);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) static void send_close_req(struct cxgbi_sock *csk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) struct sk_buff *skb = csk->cpl_close;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) struct cpl_close_con_req *req = (struct cpl_close_con_req *)skb->head;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) unsigned int tid = csk->tid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) "csk 0x%p,%u,0x%lx, tid %u.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) csk, csk->state, csk->flags, csk->tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) csk->cpl_close = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) set_wr_txq(skb, CPL_PRIORITY_DATA, csk->port_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) INIT_TP_WR(req, tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_CLOSE_CON_REQ, tid));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) req->rsvd = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) cxgbi_sock_skb_entail(csk, skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) if (csk->state >= CTP_ESTABLISHED)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) push_tx_frames(csk, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) static void abort_arp_failure(void *handle, struct sk_buff *skb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) struct cxgbi_sock *csk = (struct cxgbi_sock *)handle;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) struct cpl_abort_req *req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) "csk 0x%p,%u,0x%lx, tid %u, abort.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) csk, csk->state, csk->flags, csk->tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) req = (struct cpl_abort_req *)skb->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) req->cmd = CPL_ABORT_NO_RST;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) cxgb4_ofld_send(csk->cdev->ports[csk->port_id], skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) static void send_abort_req(struct cxgbi_sock *csk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) struct cpl_abort_req *req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) struct sk_buff *skb = csk->cpl_abort_req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) if (unlikely(csk->state == CTP_ABORTING) || !skb || !csk->cdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) if (!cxgbi_sock_flag(csk, CTPF_TX_DATA_SENT)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) send_tx_flowc_wr(csk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) cxgbi_sock_set_flag(csk, CTPF_TX_DATA_SENT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) cxgbi_sock_set_state(csk, CTP_ABORTING);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) cxgbi_sock_set_flag(csk, CTPF_ABORT_RPL_PENDING);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) cxgbi_sock_purge_write_queue(csk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) csk->cpl_abort_req = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) req = (struct cpl_abort_req *)skb->head;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) set_wr_txq(skb, CPL_PRIORITY_DATA, csk->port_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) req->cmd = CPL_ABORT_SEND_RST;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) t4_set_arp_err_handler(skb, csk, abort_arp_failure);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) INIT_TP_WR(req, csk->tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_ABORT_REQ, csk->tid));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) req->rsvd0 = htonl(csk->snd_nxt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) req->rsvd1 = !cxgbi_sock_flag(csk, CTPF_TX_DATA_SENT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) "csk 0x%p,%u,0x%lx,%u, snd_nxt %u, 0x%x.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) csk, csk->state, csk->flags, csk->tid, csk->snd_nxt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) req->rsvd1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) cxgb4_l2t_send(csk->cdev->ports[csk->port_id], skb, csk->l2t);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) static void send_abort_rpl(struct cxgbi_sock *csk, int rst_status)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) struct sk_buff *skb = csk->cpl_abort_rpl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) struct cpl_abort_rpl *rpl = (struct cpl_abort_rpl *)skb->head;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) "csk 0x%p,%u,0x%lx,%u, status %d.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) csk, csk->state, csk->flags, csk->tid, rst_status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) csk->cpl_abort_rpl = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) set_wr_txq(skb, CPL_PRIORITY_DATA, csk->port_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) INIT_TP_WR(rpl, csk->tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) OPCODE_TID(rpl) = cpu_to_be32(MK_OPCODE_TID(CPL_ABORT_RPL, csk->tid));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) rpl->cmd = rst_status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) cxgb4_ofld_send(csk->cdev->ports[csk->port_id], skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) * CPL connection rx data ack: host ->
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) * Send RX credits through an RX_DATA_ACK CPL message. Returns the number of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) * credits sent.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) static u32 send_rx_credits(struct cxgbi_sock *csk, u32 credits)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) struct sk_buff *skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) struct cpl_rx_data_ack *req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_PDU_RX,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) "csk 0x%p,%u,0x%lx,%u, credit %u.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) csk, csk->state, csk->flags, csk->tid, credits);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) skb = alloc_wr(sizeof(*req), 0, GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) if (!skb) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) pr_info("csk 0x%p, credit %u, OOM.\n", csk, credits);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) req = (struct cpl_rx_data_ack *)skb->head;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) set_wr_txq(skb, CPL_PRIORITY_ACK, csk->port_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) INIT_TP_WR(req, csk->tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_RX_DATA_ACK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) csk->tid));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) req->credit_dack = cpu_to_be32(RX_CREDITS_V(credits)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) | RX_FORCE_ACK_F);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) cxgb4_ofld_send(csk->cdev->ports[csk->port_id], skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) return credits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) * sgl_len - calculates the size of an SGL of the given capacity
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) * @n: the number of SGL entries
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) * Calculates the number of flits needed for a scatter/gather list that
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) * can hold the given number of entries.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) static inline unsigned int sgl_len(unsigned int n)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) n--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) return (3 * n) / 2 + (n & 1) + 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) * calc_tx_flits_ofld - calculate # of flits for an offload packet
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) * @skb: the packet
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) * Returns the number of flits needed for the given offload packet.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) * These packets are already fully constructed and no additional headers
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) * will be added.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) static inline unsigned int calc_tx_flits_ofld(const struct sk_buff *skb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) unsigned int flits, cnt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) if (is_ofld_imm(skb))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) return DIV_ROUND_UP(skb->len, 8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) flits = skb_transport_offset(skb) / 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) cnt = skb_shinfo(skb)->nr_frags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) if (skb_tail_pointer(skb) != skb_transport_header(skb))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) cnt++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) return flits + sgl_len(cnt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) #define FLOWC_WR_NPARAMS_MIN 9
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) static inline int tx_flowc_wr_credits(int *nparamsp, int *flowclenp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) int nparams, flowclen16, flowclen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) nparams = FLOWC_WR_NPARAMS_MIN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) #ifdef CONFIG_CHELSIO_T4_DCB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) nparams++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) flowclen = offsetof(struct fw_flowc_wr, mnemval[nparams]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) flowclen16 = DIV_ROUND_UP(flowclen, 16);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) flowclen = flowclen16 * 16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) * Return the number of 16-byte credits used by the FlowC request.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) * Pass back the nparams and actual FlowC length if requested.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) if (nparamsp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) *nparamsp = nparams;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) if (flowclenp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) *flowclenp = flowclen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) return flowclen16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) static inline int send_tx_flowc_wr(struct cxgbi_sock *csk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) struct sk_buff *skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) struct fw_flowc_wr *flowc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) int nparams, flowclen16, flowclen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) #ifdef CONFIG_CHELSIO_T4_DCB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) u16 vlan = ((struct l2t_entry *)csk->l2t)->vlan;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) flowclen16 = tx_flowc_wr_credits(&nparams, &flowclen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) skb = alloc_wr(flowclen, 0, GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) flowc = (struct fw_flowc_wr *)skb->head;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) flowc->op_to_nparams =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) htonl(FW_WR_OP_V(FW_FLOWC_WR) | FW_FLOWC_WR_NPARAMS_V(nparams));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) flowc->flowid_len16 =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) htonl(FW_WR_LEN16_V(flowclen16) | FW_WR_FLOWID_V(csk->tid));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) flowc->mnemval[0].mnemonic = FW_FLOWC_MNEM_PFNVFN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) flowc->mnemval[0].val = htonl(csk->cdev->pfvf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) flowc->mnemval[1].mnemonic = FW_FLOWC_MNEM_CH;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) flowc->mnemval[1].val = htonl(csk->tx_chan);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) flowc->mnemval[2].mnemonic = FW_FLOWC_MNEM_PORT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) flowc->mnemval[2].val = htonl(csk->tx_chan);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) flowc->mnemval[3].mnemonic = FW_FLOWC_MNEM_IQID;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) flowc->mnemval[3].val = htonl(csk->rss_qid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) flowc->mnemval[4].mnemonic = FW_FLOWC_MNEM_SNDNXT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) flowc->mnemval[4].val = htonl(csk->snd_nxt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) flowc->mnemval[5].mnemonic = FW_FLOWC_MNEM_RCVNXT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) flowc->mnemval[5].val = htonl(csk->rcv_nxt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) flowc->mnemval[6].mnemonic = FW_FLOWC_MNEM_SNDBUF;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) flowc->mnemval[6].val = htonl(csk->snd_win);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) flowc->mnemval[7].mnemonic = FW_FLOWC_MNEM_MSS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) flowc->mnemval[7].val = htonl(csk->advmss);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) flowc->mnemval[8].mnemonic = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) flowc->mnemval[8].val = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) flowc->mnemval[8].mnemonic = FW_FLOWC_MNEM_TXDATAPLEN_MAX;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) if (csk->cdev->skb_iso_txhdr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) flowc->mnemval[8].val = cpu_to_be32(CXGBI_MAX_ISO_DATA_IN_SKB);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) flowc->mnemval[8].val = cpu_to_be32(16128);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) #ifdef CONFIG_CHELSIO_T4_DCB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) flowc->mnemval[9].mnemonic = FW_FLOWC_MNEM_DCBPRIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) if (vlan == CPL_L2T_VLAN_NONE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) pr_warn_ratelimited("csk %u without VLAN Tag on DCB Link\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) csk->tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) flowc->mnemval[9].val = cpu_to_be32(0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) flowc->mnemval[9].val = cpu_to_be32((vlan & VLAN_PRIO_MASK) >>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) VLAN_PRIO_SHIFT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) set_wr_txq(skb, CPL_PRIORITY_DATA, csk->port_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) "csk 0x%p, tid 0x%x, %u,%u,%u,%u,%u,%u,%u.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) csk, csk->tid, 0, csk->tx_chan, csk->rss_qid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) csk->snd_nxt, csk->rcv_nxt, csk->snd_win,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) csk->advmss);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) cxgb4_ofld_send(csk->cdev->ports[csk->port_id], skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) return flowclen16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) cxgb4i_make_tx_iso_cpl(struct sk_buff *skb, struct cpl_tx_data_iso *cpl)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) struct cxgbi_iso_info *info = (struct cxgbi_iso_info *)skb->head;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) u32 imm_en = !!(info->flags & CXGBI_ISO_INFO_IMM_ENABLE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) u32 fslice = !!(info->flags & CXGBI_ISO_INFO_FSLICE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) u32 lslice = !!(info->flags & CXGBI_ISO_INFO_LSLICE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) u32 pdu_type = (info->op == ISCSI_OP_SCSI_CMD) ? 0 : 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) u32 submode = cxgbi_skcb_tx_ulp_mode(skb) & 0x3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) cpl->op_to_scsi = cpu_to_be32(CPL_TX_DATA_ISO_OP_V(CPL_TX_DATA_ISO) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) CPL_TX_DATA_ISO_FIRST_V(fslice) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) CPL_TX_DATA_ISO_LAST_V(lslice) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) CPL_TX_DATA_ISO_CPLHDRLEN_V(0) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) CPL_TX_DATA_ISO_HDRCRC_V(submode & 1) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) CPL_TX_DATA_ISO_PLDCRC_V(((submode >> 1) & 1)) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) CPL_TX_DATA_ISO_IMMEDIATE_V(imm_en) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) CPL_TX_DATA_ISO_SCSI_V(pdu_type));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) cpl->ahs_len = info->ahs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) cpl->mpdu = cpu_to_be16(DIV_ROUND_UP(info->mpdu, 4));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) cpl->burst_size = cpu_to_be32(info->burst_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) cpl->len = cpu_to_be32(info->len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) cpl->reserved2_seglen_offset =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) cpu_to_be32(CPL_TX_DATA_ISO_SEGLEN_OFFSET_V(info->segment_offset));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) cpl->datasn_offset = cpu_to_be32(info->datasn_offset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) cpl->buffer_offset = cpu_to_be32(info->buffer_offset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) cpl->reserved3 = cpu_to_be32(0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704) log_debug(1 << CXGBI_DBG_ISCSI | 1 << CXGBI_DBG_PDU_TX,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705) "iso: flags 0x%x, op %u, ahs %u, num_pdu %u, mpdu %u, "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) "burst_size %u, iso_len %u\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707) info->flags, info->op, info->ahs, info->num_pdu,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) info->mpdu, info->burst_size << 2, info->len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712) cxgb4i_make_tx_data_wr(struct cxgbi_sock *csk, struct sk_buff *skb, int dlen,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) int len, u32 credits, int compl)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) struct cxgbi_device *cdev = csk->cdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) struct fw_ofld_tx_data_wr *req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718) struct cpl_tx_data_iso *cpl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) u32 submode = cxgbi_skcb_tx_ulp_mode(skb) & 0x3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720) u32 wr_ulp_mode = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) u32 hdr_size = sizeof(*req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) u32 opcode = FW_OFLD_TX_DATA_WR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) u32 immlen = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) u32 force = is_t5(lldi->adapter_type) ? TX_FORCE_V(!submode) :
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725) T6_TX_FORCE_F;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727) if (cxgbi_skcb_test_flag(skb, SKCBF_TX_ISO)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) hdr_size += sizeof(struct cpl_tx_data_iso);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729) opcode = FW_ISCSI_TX_DATA_WR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730) immlen += sizeof(struct cpl_tx_data_iso);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731) submode |= 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734) if (is_ofld_imm(skb))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735) immlen += dlen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737) req = (struct fw_ofld_tx_data_wr *)__skb_push(skb, hdr_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738) req->op_to_immdlen = cpu_to_be32(FW_WR_OP_V(opcode) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) FW_WR_COMPL_V(compl) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) FW_WR_IMMDLEN_V(immlen));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741) req->flowid_len16 = cpu_to_be32(FW_WR_FLOWID_V(csk->tid) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) FW_WR_LEN16_V(credits));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743) req->plen = cpu_to_be32(len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) cpl = (struct cpl_tx_data_iso *)(req + 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) if (likely(cxgbi_skcb_test_flag(skb, SKCBF_TX_ISO)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) cxgb4i_make_tx_iso_cpl(skb, cpl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749) if (submode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) wr_ulp_mode = FW_OFLD_TX_DATA_WR_ULPMODE_V(ULP2_MODE_ISCSI) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751) FW_OFLD_TX_DATA_WR_ULPSUBMODE_V(submode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) req->tunnel_to_proxy = cpu_to_be32(wr_ulp_mode | force |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754) FW_OFLD_TX_DATA_WR_SHOVE_V(1U));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756) if (!cxgbi_sock_flag(csk, CTPF_TX_DATA_SENT))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) cxgbi_sock_set_flag(csk, CTPF_TX_DATA_SENT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760) static void arp_failure_skb_discard(void *handle, struct sk_buff *skb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762) kfree_skb(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765) static int push_tx_frames(struct cxgbi_sock *csk, int req_completion)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) int total_size = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768) struct sk_buff *skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770) if (unlikely(csk->state < CTP_ESTABLISHED ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771) csk->state == CTP_CLOSE_WAIT_1 || csk->state >= CTP_ABORTING)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772) log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773) 1 << CXGBI_DBG_PDU_TX,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774) "csk 0x%p,%u,0x%lx,%u, in closing state.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775) csk, csk->state, csk->flags, csk->tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779) while (csk->wr_cred && ((skb = skb_peek(&csk->write_queue)) != NULL)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780) struct cxgbi_iso_info *iso_cpl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781) u32 dlen = skb->len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782) u32 len = skb->len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783) u32 iso_cpl_len = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784) u32 flowclen16 = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785) u32 credits_needed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786) u32 num_pdu = 1, hdr_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788) if (cxgbi_skcb_test_flag(skb, SKCBF_TX_ISO))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789) iso_cpl_len = sizeof(struct cpl_tx_data_iso);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791) if (is_ofld_imm(skb))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792) credits_needed = DIV_ROUND_UP(dlen + iso_cpl_len, 16);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794) credits_needed =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795) DIV_ROUND_UP((8 * calc_tx_flits_ofld(skb)) +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796) iso_cpl_len, 16);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798) if (likely(cxgbi_skcb_test_flag(skb, SKCBF_TX_NEED_HDR)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799) credits_needed +=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800) DIV_ROUND_UP(sizeof(struct fw_ofld_tx_data_wr), 16);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803) * Assumes the initial credits is large enough to support
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804) * fw_flowc_wr plus largest possible first payload
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806) if (!cxgbi_sock_flag(csk, CTPF_TX_DATA_SENT)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807) flowclen16 = send_tx_flowc_wr(csk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808) csk->wr_cred -= flowclen16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 809) csk->wr_una_cred += flowclen16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 810) cxgbi_sock_set_flag(csk, CTPF_TX_DATA_SENT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 811) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 812)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 813) if (csk->wr_cred < credits_needed) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 814) log_debug(1 << CXGBI_DBG_PDU_TX,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 815) "csk 0x%p, skb %u/%u, wr %d < %u.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 816) csk, skb->len, skb->data_len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 817) credits_needed, csk->wr_cred);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 818)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 819) csk->no_tx_credits++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 820) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 821) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 822)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 823) csk->no_tx_credits = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 824)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 825) __skb_unlink(skb, &csk->write_queue);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 826) set_wr_txq(skb, CPL_PRIORITY_DATA, csk->port_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 827) skb->csum = (__force __wsum)(credits_needed + flowclen16);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 828) csk->wr_cred -= credits_needed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 829) csk->wr_una_cred += credits_needed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 830) cxgbi_sock_enqueue_wr(csk, skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 831)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 832) log_debug(1 << CXGBI_DBG_PDU_TX,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 833) "csk 0x%p, skb %u/%u, wr %d, left %u, unack %u.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 834) csk, skb->len, skb->data_len, credits_needed,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 835) csk->wr_cred, csk->wr_una_cred);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 836)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 837) if (!req_completion &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 838) ((csk->wr_una_cred >= (csk->wr_max_cred / 2)) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 839) after(csk->write_seq, (csk->snd_una + csk->snd_win / 2))))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 840) req_completion = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 841)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 842) if (likely(cxgbi_skcb_test_flag(skb, SKCBF_TX_NEED_HDR))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 843) u32 ulp_mode = cxgbi_skcb_tx_ulp_mode(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 844)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 845) if (cxgbi_skcb_test_flag(skb, SKCBF_TX_ISO)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 846) iso_cpl = (struct cxgbi_iso_info *)skb->head;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 847) num_pdu = iso_cpl->num_pdu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 848) hdr_len = cxgbi_skcb_tx_iscsi_hdrlen(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 849) len += (cxgbi_ulp_extra_len(ulp_mode) * num_pdu) +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 850) (hdr_len * (num_pdu - 1));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 851) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 852) len += cxgbi_ulp_extra_len(ulp_mode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 853) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 854)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 855) cxgb4i_make_tx_data_wr(csk, skb, dlen, len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 856) credits_needed, req_completion);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 857) csk->snd_nxt += len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 858) cxgbi_skcb_clear_flag(skb, SKCBF_TX_NEED_HDR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 859) } else if (cxgbi_skcb_test_flag(skb, SKCBF_TX_FLAG_COMPL) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 860) (csk->wr_una_cred >= (csk->wr_max_cred / 2))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 861) struct cpl_close_con_req *req =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 862) (struct cpl_close_con_req *)skb->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 863)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 864) req->wr.wr_hi |= cpu_to_be32(FW_WR_COMPL_F);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 865) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 866)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 867) total_size += skb->truesize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 868) t4_set_arp_err_handler(skb, csk, arp_failure_skb_discard);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 869)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 870) log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_PDU_TX,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 871) "csk 0x%p,%u,0x%lx,%u, skb 0x%p, %u.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 872) csk, csk->state, csk->flags, csk->tid, skb, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 873) cxgb4_l2t_send(csk->cdev->ports[csk->port_id], skb, csk->l2t);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 874) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 875) return total_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 876) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 877)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 878) static inline void free_atid(struct cxgbi_sock *csk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 879) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 880) struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(csk->cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 881)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 882) if (cxgbi_sock_flag(csk, CTPF_HAS_ATID)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 883) cxgb4_free_atid(lldi->tids, csk->atid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 884) cxgbi_sock_clear_flag(csk, CTPF_HAS_ATID);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 885) cxgbi_sock_put(csk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 886) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 887) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 888)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 889) static void do_act_establish(struct cxgbi_device *cdev, struct sk_buff *skb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 890) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 891) struct cxgbi_sock *csk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 892) struct cpl_act_establish *req = (struct cpl_act_establish *)skb->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 893) unsigned short tcp_opt = ntohs(req->tcp_opt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 894) unsigned int tid = GET_TID(req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 895) unsigned int atid = TID_TID_G(ntohl(req->tos_atid));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 896) struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 897) struct tid_info *t = lldi->tids;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 898) u32 rcv_isn = be32_to_cpu(req->rcv_isn);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 899)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 900) csk = lookup_atid(t, atid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 901) if (unlikely(!csk)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 902) pr_err("NO conn. for atid %u, cdev 0x%p.\n", atid, cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 903) goto rel_skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 904) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 905)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 906) if (csk->atid != atid) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 907) pr_err("bad conn atid %u, csk 0x%p,%u,0x%lx,tid %u, atid %u.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 908) atid, csk, csk->state, csk->flags, csk->tid, csk->atid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 909) goto rel_skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 910) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 911)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 912) pr_info_ipaddr("atid 0x%x, tid 0x%x, csk 0x%p,%u,0x%lx, isn %u.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 913) (&csk->saddr), (&csk->daddr),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 914) atid, tid, csk, csk->state, csk->flags, rcv_isn);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 915)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 916) module_put(cdev->owner);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 917)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 918) cxgbi_sock_get(csk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 919) csk->tid = tid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 920) cxgb4_insert_tid(lldi->tids, csk, tid, csk->csk_family);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 921) cxgbi_sock_set_flag(csk, CTPF_HAS_TID);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 922)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 923) free_atid(csk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 924)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 925) spin_lock_bh(&csk->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 926) if (unlikely(csk->state != CTP_ACTIVE_OPEN))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 927) pr_info("csk 0x%p,%u,0x%lx,%u, got EST.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 928) csk, csk->state, csk->flags, csk->tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 929)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 930) if (csk->retry_timer.function) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 931) del_timer(&csk->retry_timer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 932) csk->retry_timer.function = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 933) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 934)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 935) csk->copied_seq = csk->rcv_wup = csk->rcv_nxt = rcv_isn;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 936) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 937) * Causes the first RX_DATA_ACK to supply any Rx credits we couldn't
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 938) * pass through opt0.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 939) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 940) if (csk->rcv_win > (RCV_BUFSIZ_MASK << 10))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 941) csk->rcv_wup -= csk->rcv_win - (RCV_BUFSIZ_MASK << 10);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 942)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 943) csk->advmss = lldi->mtus[TCPOPT_MSS_G(tcp_opt)] - 40;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 944) if (TCPOPT_TSTAMP_G(tcp_opt))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 945) csk->advmss -= 12;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 946) if (csk->advmss < 128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 947) csk->advmss = 128;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 948)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 949) log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 950) "csk 0x%p, mss_idx %u, advmss %u.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 951) csk, TCPOPT_MSS_G(tcp_opt), csk->advmss);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 952)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 953) cxgbi_sock_established(csk, ntohl(req->snd_isn), ntohs(req->tcp_opt));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 954)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 955) if (unlikely(cxgbi_sock_flag(csk, CTPF_ACTIVE_CLOSE_NEEDED)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 956) send_abort_req(csk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 957) else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 958) if (skb_queue_len(&csk->write_queue))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 959) push_tx_frames(csk, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 960) cxgbi_conn_tx_open(csk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 961) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 962) spin_unlock_bh(&csk->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 963)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 964) rel_skb:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 965) __kfree_skb(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 966) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 967)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 968) static int act_open_rpl_status_to_errno(int status)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 969) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 970) switch (status) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 971) case CPL_ERR_CONN_RESET:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 972) return -ECONNREFUSED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 973) case CPL_ERR_ARP_MISS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 974) return -EHOSTUNREACH;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 975) case CPL_ERR_CONN_TIMEDOUT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 976) return -ETIMEDOUT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 977) case CPL_ERR_TCAM_FULL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 978) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 979) case CPL_ERR_CONN_EXIST:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 980) return -EADDRINUSE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 981) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 982) return -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 983) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 984) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 985)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 986) static void csk_act_open_retry_timer(struct timer_list *t)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 987) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 988) struct sk_buff *skb = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 989) struct cxgbi_sock *csk = from_timer(csk, t, retry_timer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 990) struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(csk->cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 991) void (*send_act_open_func)(struct cxgbi_sock *, struct sk_buff *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 992) struct l2t_entry *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 993) int t4 = is_t4(lldi->adapter_type), size, size6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 994)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 995) log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 996) "csk 0x%p,%u,0x%lx,%u.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 997) csk, csk->state, csk->flags, csk->tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 998)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 999) cxgbi_sock_get(csk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1000) spin_lock_bh(&csk->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1001)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1002) if (t4) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1003) size = sizeof(struct cpl_act_open_req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1004) size6 = sizeof(struct cpl_act_open_req6);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1005) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1006) size = sizeof(struct cpl_t5_act_open_req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1007) size6 = sizeof(struct cpl_t5_act_open_req6);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1008) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1009)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1010) if (csk->csk_family == AF_INET) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1011) send_act_open_func = send_act_open_req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1012) skb = alloc_wr(size, 0, GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1013) #if IS_ENABLED(CONFIG_IPV6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1014) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1015) send_act_open_func = send_act_open_req6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1016) skb = alloc_wr(size6, 0, GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1017) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1018) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1019)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1020) if (!skb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1021) cxgbi_sock_fail_act_open(csk, -ENOMEM);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1022) else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1023) skb->sk = (struct sock *)csk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1024) t4_set_arp_err_handler(skb, csk,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1025) cxgbi_sock_act_open_req_arp_failure);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1026) send_act_open_func(csk, skb, csk->l2t);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1027) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1028)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1029) spin_unlock_bh(&csk->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1030) cxgbi_sock_put(csk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1031)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1032) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1033)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1034) static inline bool is_neg_adv(unsigned int status)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1035) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1036) return status == CPL_ERR_RTX_NEG_ADVICE ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1037) status == CPL_ERR_KEEPALV_NEG_ADVICE ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1038) status == CPL_ERR_PERSIST_NEG_ADVICE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1039) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1040)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1041) static void do_act_open_rpl(struct cxgbi_device *cdev, struct sk_buff *skb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1042) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1043) struct cxgbi_sock *csk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1044) struct cpl_act_open_rpl *rpl = (struct cpl_act_open_rpl *)skb->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1045) unsigned int tid = GET_TID(rpl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1046) unsigned int atid =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1047) TID_TID_G(AOPEN_ATID_G(be32_to_cpu(rpl->atid_status)));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1048) unsigned int status = AOPEN_STATUS_G(be32_to_cpu(rpl->atid_status));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1049) struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1050) struct tid_info *t = lldi->tids;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1051)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1052) csk = lookup_atid(t, atid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1053) if (unlikely(!csk)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1054) pr_err("NO matching conn. atid %u, tid %u.\n", atid, tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1055) goto rel_skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1056) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1057)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1058) pr_info_ipaddr("tid %u/%u, status %u.\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1059) "csk 0x%p,%u,0x%lx. ", (&csk->saddr), (&csk->daddr),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1060) atid, tid, status, csk, csk->state, csk->flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1061)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1062) if (is_neg_adv(status))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1063) goto rel_skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1064)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1065) module_put(cdev->owner);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1066)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1067) if (status && status != CPL_ERR_TCAM_FULL &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1068) status != CPL_ERR_CONN_EXIST &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1069) status != CPL_ERR_ARP_MISS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1070) cxgb4_remove_tid(lldi->tids, csk->port_id, GET_TID(rpl),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1071) csk->csk_family);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1072)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1073) cxgbi_sock_get(csk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1074) spin_lock_bh(&csk->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1075)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1076) if (status == CPL_ERR_CONN_EXIST &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1077) csk->retry_timer.function != csk_act_open_retry_timer) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1078) csk->retry_timer.function = csk_act_open_retry_timer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1079) mod_timer(&csk->retry_timer, jiffies + HZ / 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1080) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1081) cxgbi_sock_fail_act_open(csk,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1082) act_open_rpl_status_to_errno(status));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1083)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1084) spin_unlock_bh(&csk->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1085) cxgbi_sock_put(csk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1086) rel_skb:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1087) __kfree_skb(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1088) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1089)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1090) static void do_peer_close(struct cxgbi_device *cdev, struct sk_buff *skb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1091) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1092) struct cxgbi_sock *csk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1093) struct cpl_peer_close *req = (struct cpl_peer_close *)skb->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1094) unsigned int tid = GET_TID(req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1095) struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1096) struct tid_info *t = lldi->tids;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1097)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1098) csk = lookup_tid(t, tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1099) if (unlikely(!csk)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1100) pr_err("can't find connection for tid %u.\n", tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1101) goto rel_skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1102) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1103) pr_info_ipaddr("csk 0x%p,%u,0x%lx,%u.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1104) (&csk->saddr), (&csk->daddr),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1105) csk, csk->state, csk->flags, csk->tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1106) cxgbi_sock_rcv_peer_close(csk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1107) rel_skb:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1108) __kfree_skb(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1109) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1110)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1111) static void do_close_con_rpl(struct cxgbi_device *cdev, struct sk_buff *skb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1112) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1113) struct cxgbi_sock *csk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1114) struct cpl_close_con_rpl *rpl = (struct cpl_close_con_rpl *)skb->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1115) unsigned int tid = GET_TID(rpl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1116) struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1117) struct tid_info *t = lldi->tids;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1118)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1119) csk = lookup_tid(t, tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1120) if (unlikely(!csk)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1121) pr_err("can't find connection for tid %u.\n", tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1122) goto rel_skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1123) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1124) pr_info_ipaddr("csk 0x%p,%u,0x%lx,%u.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1125) (&csk->saddr), (&csk->daddr),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1126) csk, csk->state, csk->flags, csk->tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1127) cxgbi_sock_rcv_close_conn_rpl(csk, ntohl(rpl->snd_nxt));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1128) rel_skb:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1129) __kfree_skb(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1130) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1131)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1132) static int abort_status_to_errno(struct cxgbi_sock *csk, int abort_reason,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1133) int *need_rst)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1134) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1135) switch (abort_reason) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1136) case CPL_ERR_BAD_SYN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1137) case CPL_ERR_CONN_RESET:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1138) return csk->state > CTP_ESTABLISHED ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1139) -EPIPE : -ECONNRESET;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1140) case CPL_ERR_XMIT_TIMEDOUT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1141) case CPL_ERR_PERSIST_TIMEDOUT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1142) case CPL_ERR_FINWAIT2_TIMEDOUT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1143) case CPL_ERR_KEEPALIVE_TIMEDOUT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1144) return -ETIMEDOUT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1145) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1146) return -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1147) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1148) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1149)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1150) static void do_abort_req_rss(struct cxgbi_device *cdev, struct sk_buff *skb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1151) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1152) struct cxgbi_sock *csk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1153) struct cpl_abort_req_rss *req = (struct cpl_abort_req_rss *)skb->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1154) unsigned int tid = GET_TID(req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1155) struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1156) struct tid_info *t = lldi->tids;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1157) int rst_status = CPL_ABORT_NO_RST;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1158)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1159) csk = lookup_tid(t, tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1160) if (unlikely(!csk)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1161) pr_err("can't find connection for tid %u.\n", tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1162) goto rel_skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1163) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1164)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1165) pr_info_ipaddr("csk 0x%p,%u,0x%lx,%u, status %u.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1166) (&csk->saddr), (&csk->daddr),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1167) csk, csk->state, csk->flags, csk->tid, req->status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1168)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1169) if (is_neg_adv(req->status))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1170) goto rel_skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1171)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1172) cxgbi_sock_get(csk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1173) spin_lock_bh(&csk->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1174)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1175) cxgbi_sock_clear_flag(csk, CTPF_ABORT_REQ_RCVD);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1176)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1177) if (!cxgbi_sock_flag(csk, CTPF_TX_DATA_SENT)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1178) send_tx_flowc_wr(csk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1179) cxgbi_sock_set_flag(csk, CTPF_TX_DATA_SENT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1180) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1181)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1182) cxgbi_sock_set_flag(csk, CTPF_ABORT_REQ_RCVD);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1183) cxgbi_sock_set_state(csk, CTP_ABORTING);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1184)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1185) send_abort_rpl(csk, rst_status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1186)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1187) if (!cxgbi_sock_flag(csk, CTPF_ABORT_RPL_PENDING)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1188) csk->err = abort_status_to_errno(csk, req->status, &rst_status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1189) cxgbi_sock_closed(csk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1190) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1191)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1192) spin_unlock_bh(&csk->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1193) cxgbi_sock_put(csk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1194) rel_skb:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1195) __kfree_skb(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1196) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1197)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1198) static void do_abort_rpl_rss(struct cxgbi_device *cdev, struct sk_buff *skb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1199) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1200) struct cxgbi_sock *csk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1201) struct cpl_abort_rpl_rss *rpl = (struct cpl_abort_rpl_rss *)skb->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1202) unsigned int tid = GET_TID(rpl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1203) struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1204) struct tid_info *t = lldi->tids;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1205)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1206) csk = lookup_tid(t, tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1207) if (!csk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1208) goto rel_skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1209)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1210) pr_info_ipaddr("csk 0x%p,%u,0x%lx,%u, status %u.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1211) (&csk->saddr), (&csk->daddr), csk,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1212) csk->state, csk->flags, csk->tid, rpl->status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1213)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1214) if (rpl->status == CPL_ERR_ABORT_FAILED)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1215) goto rel_skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1216)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1217) cxgbi_sock_rcv_abort_rpl(csk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1218) rel_skb:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1219) __kfree_skb(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1220) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1221)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1222) static void do_rx_data(struct cxgbi_device *cdev, struct sk_buff *skb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1223) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1224) struct cxgbi_sock *csk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1225) struct cpl_rx_data *cpl = (struct cpl_rx_data *)skb->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1226) unsigned int tid = GET_TID(cpl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1227) struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1228) struct tid_info *t = lldi->tids;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1229)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1230) csk = lookup_tid(t, tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1231) if (!csk) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1232) pr_err("can't find connection for tid %u.\n", tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1233) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1234) /* not expecting this, reset the connection. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1235) pr_err("csk 0x%p, tid %u, rcv cpl_rx_data.\n", csk, tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1236) spin_lock_bh(&csk->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1237) send_abort_req(csk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1238) spin_unlock_bh(&csk->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1239) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1240) __kfree_skb(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1241) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1242)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1243) static void do_rx_iscsi_hdr(struct cxgbi_device *cdev, struct sk_buff *skb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1244) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1245) struct cxgbi_sock *csk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1246) struct cpl_iscsi_hdr *cpl = (struct cpl_iscsi_hdr *)skb->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1247) unsigned short pdu_len_ddp = be16_to_cpu(cpl->pdu_len_ddp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1248) unsigned int tid = GET_TID(cpl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1249) struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1250) struct tid_info *t = lldi->tids;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1251)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1252) csk = lookup_tid(t, tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1253) if (unlikely(!csk)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1254) pr_err("can't find conn. for tid %u.\n", tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1255) goto rel_skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1256) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1257)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1258) log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_PDU_RX,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1259) "csk 0x%p,%u,0x%lx, tid %u, skb 0x%p,%u, 0x%x.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1260) csk, csk->state, csk->flags, csk->tid, skb, skb->len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1261) pdu_len_ddp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1262)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1263) spin_lock_bh(&csk->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1264)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1265) if (unlikely(csk->state >= CTP_PASSIVE_CLOSE)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1266) log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1267) "csk 0x%p,%u,0x%lx,%u, bad state.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1268) csk, csk->state, csk->flags, csk->tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1269) if (csk->state != CTP_ABORTING)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1270) goto abort_conn;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1271) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1272) goto discard;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1273) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1274)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1275) cxgbi_skcb_tcp_seq(skb) = ntohl(cpl->seq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1276) cxgbi_skcb_flags(skb) = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1277)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1278) skb_reset_transport_header(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1279) __skb_pull(skb, sizeof(*cpl));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1280) __pskb_trim(skb, ntohs(cpl->len));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1281)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1282) if (!csk->skb_ulp_lhdr) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1283) unsigned char *bhs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1284) unsigned int hlen, dlen, plen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1285)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1286) log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_PDU_RX,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1287) "csk 0x%p,%u,0x%lx, tid %u, skb 0x%p header.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1288) csk, csk->state, csk->flags, csk->tid, skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1289) csk->skb_ulp_lhdr = skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1290) cxgbi_skcb_set_flag(skb, SKCBF_RX_HDR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1291)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1292) if ((CHELSIO_CHIP_VERSION(lldi->adapter_type) <= CHELSIO_T5) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1293) (cxgbi_skcb_tcp_seq(skb) != csk->rcv_nxt)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1294) pr_info("tid %u, CPL_ISCSI_HDR, bad seq, 0x%x/0x%x.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1295) csk->tid, cxgbi_skcb_tcp_seq(skb),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1296) csk->rcv_nxt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1297) goto abort_conn;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1298) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1299)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1300) bhs = skb->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1301) hlen = ntohs(cpl->len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1302) dlen = ntohl(*(unsigned int *)(bhs + 4)) & 0xFFFFFF;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1303)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1304) plen = ISCSI_PDU_LEN_G(pdu_len_ddp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1305) if (is_t4(lldi->adapter_type))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1306) plen -= 40;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1307)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1308) if ((hlen + dlen) != plen) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1309) pr_info("tid 0x%x, CPL_ISCSI_HDR, pdu len "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1310) "mismatch %u != %u + %u, seq 0x%x.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1311) csk->tid, plen, hlen, dlen,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1312) cxgbi_skcb_tcp_seq(skb));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1313) goto abort_conn;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1314) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1315)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1316) cxgbi_skcb_rx_pdulen(skb) = (hlen + dlen + 3) & (~0x3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1317) if (dlen)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1318) cxgbi_skcb_rx_pdulen(skb) += csk->dcrc_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1319) csk->rcv_nxt += cxgbi_skcb_rx_pdulen(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1320)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1321) log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_PDU_RX,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1322) "csk 0x%p, skb 0x%p, 0x%x,%u+%u,0x%x,0x%x.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1323) csk, skb, *bhs, hlen, dlen,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1324) ntohl(*((unsigned int *)(bhs + 16))),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1325) ntohl(*((unsigned int *)(bhs + 24))));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1326)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1327) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1328) struct sk_buff *lskb = csk->skb_ulp_lhdr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1329)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1330) cxgbi_skcb_set_flag(lskb, SKCBF_RX_DATA);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1331) log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_PDU_RX,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1332) "csk 0x%p,%u,0x%lx, skb 0x%p data, 0x%p.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1333) csk, csk->state, csk->flags, skb, lskb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1334) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1335)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1336) __skb_queue_tail(&csk->receive_queue, skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1337) spin_unlock_bh(&csk->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1338) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1339)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1340) abort_conn:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1341) send_abort_req(csk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1342) discard:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1343) spin_unlock_bh(&csk->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1344) rel_skb:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1345) __kfree_skb(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1346) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1347)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1348) static void do_rx_iscsi_data(struct cxgbi_device *cdev, struct sk_buff *skb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1349) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1350) struct cxgbi_sock *csk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1351) struct cpl_iscsi_hdr *cpl = (struct cpl_iscsi_hdr *)skb->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1352) struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1353) struct tid_info *t = lldi->tids;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1354) struct sk_buff *lskb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1355) u32 tid = GET_TID(cpl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1356) u16 pdu_len_ddp = be16_to_cpu(cpl->pdu_len_ddp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1357)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1358) csk = lookup_tid(t, tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1359) if (unlikely(!csk)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1360) pr_err("can't find conn. for tid %u.\n", tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1361) goto rel_skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1362) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1363)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1364) log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_PDU_RX,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1365) "csk 0x%p,%u,0x%lx, tid %u, skb 0x%p,%u, 0x%x.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1366) csk, csk->state, csk->flags, csk->tid, skb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1367) skb->len, pdu_len_ddp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1368)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1369) spin_lock_bh(&csk->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1370)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1371) if (unlikely(csk->state >= CTP_PASSIVE_CLOSE)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1372) log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1373) "csk 0x%p,%u,0x%lx,%u, bad state.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1374) csk, csk->state, csk->flags, csk->tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1375)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1376) if (csk->state != CTP_ABORTING)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1377) goto abort_conn;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1378) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1379) goto discard;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1380) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1381)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1382) cxgbi_skcb_tcp_seq(skb) = be32_to_cpu(cpl->seq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1383) cxgbi_skcb_flags(skb) = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1384)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1385) skb_reset_transport_header(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1386) __skb_pull(skb, sizeof(*cpl));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1387) __pskb_trim(skb, ntohs(cpl->len));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1388)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1389) if (!csk->skb_ulp_lhdr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1390) csk->skb_ulp_lhdr = skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1391)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1392) lskb = csk->skb_ulp_lhdr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1393) cxgbi_skcb_set_flag(lskb, SKCBF_RX_DATA);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1394)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1395) log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_PDU_RX,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1396) "csk 0x%p,%u,0x%lx, skb 0x%p data, 0x%p.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1397) csk, csk->state, csk->flags, skb, lskb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1398)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1399) __skb_queue_tail(&csk->receive_queue, skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1400) spin_unlock_bh(&csk->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1401) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1402)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1403) abort_conn:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1404) send_abort_req(csk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1405) discard:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1406) spin_unlock_bh(&csk->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1407) rel_skb:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1408) __kfree_skb(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1409) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1410)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1411) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1412) cxgb4i_process_ddpvld(struct cxgbi_sock *csk,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1413) struct sk_buff *skb, u32 ddpvld)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1414) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1415) if (ddpvld & (1 << CPL_RX_DDP_STATUS_HCRC_SHIFT)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1416) pr_info("csk 0x%p, lhdr 0x%p, status 0x%x, hcrc bad 0x%lx.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1417) csk, skb, ddpvld, cxgbi_skcb_flags(skb));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1418) cxgbi_skcb_set_flag(skb, SKCBF_RX_HCRC_ERR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1419) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1420)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1421) if (ddpvld & (1 << CPL_RX_DDP_STATUS_DCRC_SHIFT)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1422) pr_info("csk 0x%p, lhdr 0x%p, status 0x%x, dcrc bad 0x%lx.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1423) csk, skb, ddpvld, cxgbi_skcb_flags(skb));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1424) cxgbi_skcb_set_flag(skb, SKCBF_RX_DCRC_ERR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1425) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1426)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1427) if (ddpvld & (1 << CPL_RX_DDP_STATUS_PAD_SHIFT)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1428) log_debug(1 << CXGBI_DBG_PDU_RX,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1429) "csk 0x%p, lhdr 0x%p, status 0x%x, pad bad.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1430) csk, skb, ddpvld);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1431) cxgbi_skcb_set_flag(skb, SKCBF_RX_PAD_ERR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1432) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1433)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1434) if ((ddpvld & (1 << CPL_RX_DDP_STATUS_DDP_SHIFT)) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1435) !cxgbi_skcb_test_flag(skb, SKCBF_RX_DATA)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1436) log_debug(1 << CXGBI_DBG_PDU_RX,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1437) "csk 0x%p, lhdr 0x%p, 0x%x, data ddp'ed.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1438) csk, skb, ddpvld);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1439) cxgbi_skcb_set_flag(skb, SKCBF_RX_DATA_DDPD);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1440) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1441) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1442)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1443) static void do_rx_data_ddp(struct cxgbi_device *cdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1444) struct sk_buff *skb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1445) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1446) struct cxgbi_sock *csk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1447) struct sk_buff *lskb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1448) struct cpl_rx_data_ddp *rpl = (struct cpl_rx_data_ddp *)skb->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1449) unsigned int tid = GET_TID(rpl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1450) struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1451) struct tid_info *t = lldi->tids;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1452) u32 ddpvld = be32_to_cpu(rpl->ddpvld);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1453)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1454) csk = lookup_tid(t, tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1455) if (unlikely(!csk)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1456) pr_err("can't find connection for tid %u.\n", tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1457) goto rel_skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1458) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1459)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1460) log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_PDU_RX,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1461) "csk 0x%p,%u,0x%lx, skb 0x%p,0x%x, lhdr 0x%p.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1462) csk, csk->state, csk->flags, skb, ddpvld, csk->skb_ulp_lhdr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1463)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1464) spin_lock_bh(&csk->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1465)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1466) if (unlikely(csk->state >= CTP_PASSIVE_CLOSE)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1467) log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1468) "csk 0x%p,%u,0x%lx,%u, bad state.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1469) csk, csk->state, csk->flags, csk->tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1470) if (csk->state != CTP_ABORTING)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1471) goto abort_conn;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1472) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1473) goto discard;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1474) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1475)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1476) if (!csk->skb_ulp_lhdr) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1477) pr_err("tid 0x%x, rcv RX_DATA_DDP w/o pdu bhs.\n", csk->tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1478) goto abort_conn;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1479) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1480)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1481) lskb = csk->skb_ulp_lhdr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1482) csk->skb_ulp_lhdr = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1483)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1484) cxgbi_skcb_rx_ddigest(lskb) = ntohl(rpl->ulp_crc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1485)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1486) if (ntohs(rpl->len) != cxgbi_skcb_rx_pdulen(lskb))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1487) pr_info("tid 0x%x, RX_DATA_DDP pdulen %u != %u.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1488) csk->tid, ntohs(rpl->len), cxgbi_skcb_rx_pdulen(lskb));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1489)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1490) cxgb4i_process_ddpvld(csk, lskb, ddpvld);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1491)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1492) log_debug(1 << CXGBI_DBG_PDU_RX,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1493) "csk 0x%p, lskb 0x%p, f 0x%lx.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1494) csk, lskb, cxgbi_skcb_flags(lskb));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1495)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1496) cxgbi_skcb_set_flag(lskb, SKCBF_RX_STATUS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1497) cxgbi_conn_pdu_ready(csk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1498) spin_unlock_bh(&csk->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1499) goto rel_skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1500)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1501) abort_conn:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1502) send_abort_req(csk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1503) discard:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1504) spin_unlock_bh(&csk->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1505) rel_skb:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1506) __kfree_skb(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1507) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1508)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1509) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1510) do_rx_iscsi_cmp(struct cxgbi_device *cdev, struct sk_buff *skb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1511) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1512) struct cxgbi_sock *csk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1513) struct cpl_rx_iscsi_cmp *rpl = (struct cpl_rx_iscsi_cmp *)skb->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1514) struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1515) struct tid_info *t = lldi->tids;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1516) struct sk_buff *data_skb = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1517) u32 tid = GET_TID(rpl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1518) u32 ddpvld = be32_to_cpu(rpl->ddpvld);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1519) u32 seq = be32_to_cpu(rpl->seq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1520) u16 pdu_len_ddp = be16_to_cpu(rpl->pdu_len_ddp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1521)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1522) csk = lookup_tid(t, tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1523) if (unlikely(!csk)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1524) pr_err("can't find connection for tid %u.\n", tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1525) goto rel_skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1526) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1527)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1528) log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_PDU_RX,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1529) "csk 0x%p,%u,0x%lx, skb 0x%p,0x%x, lhdr 0x%p, len %u, "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1530) "pdu_len_ddp %u, status %u.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1531) csk, csk->state, csk->flags, skb, ddpvld, csk->skb_ulp_lhdr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1532) ntohs(rpl->len), pdu_len_ddp, rpl->status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1533)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1534) spin_lock_bh(&csk->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1535)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1536) if (unlikely(csk->state >= CTP_PASSIVE_CLOSE)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1537) log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1538) "csk 0x%p,%u,0x%lx,%u, bad state.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1539) csk, csk->state, csk->flags, csk->tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1540)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1541) if (csk->state != CTP_ABORTING)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1542) goto abort_conn;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1543) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1544) goto discard;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1545) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1546)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1547) cxgbi_skcb_tcp_seq(skb) = seq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1548) cxgbi_skcb_flags(skb) = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1549) cxgbi_skcb_rx_pdulen(skb) = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1550)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1551) skb_reset_transport_header(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1552) __skb_pull(skb, sizeof(*rpl));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1553) __pskb_trim(skb, be16_to_cpu(rpl->len));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1554)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1555) csk->rcv_nxt = seq + pdu_len_ddp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1556)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1557) if (csk->skb_ulp_lhdr) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1558) data_skb = skb_peek(&csk->receive_queue);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1559) if (!data_skb ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1560) !cxgbi_skcb_test_flag(data_skb, SKCBF_RX_DATA)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1561) pr_err("Error! freelist data not found 0x%p, tid %u\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1562) data_skb, tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1563)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1564) goto abort_conn;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1565) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1566) __skb_unlink(data_skb, &csk->receive_queue);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1567)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1568) cxgbi_skcb_set_flag(skb, SKCBF_RX_DATA);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1569)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1570) __skb_queue_tail(&csk->receive_queue, skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1571) __skb_queue_tail(&csk->receive_queue, data_skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1572) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1573) __skb_queue_tail(&csk->receive_queue, skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1574) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1575)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1576) csk->skb_ulp_lhdr = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1577)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1578) cxgbi_skcb_set_flag(skb, SKCBF_RX_HDR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1579) cxgbi_skcb_set_flag(skb, SKCBF_RX_STATUS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1580) cxgbi_skcb_set_flag(skb, SKCBF_RX_ISCSI_COMPL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1581) cxgbi_skcb_rx_ddigest(skb) = be32_to_cpu(rpl->ulp_crc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1582)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1583) cxgb4i_process_ddpvld(csk, skb, ddpvld);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1584)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1585) log_debug(1 << CXGBI_DBG_PDU_RX, "csk 0x%p, skb 0x%p, f 0x%lx.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1586) csk, skb, cxgbi_skcb_flags(skb));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1587)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1588) cxgbi_conn_pdu_ready(csk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1589) spin_unlock_bh(&csk->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1590)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1591) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1592)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1593) abort_conn:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1594) send_abort_req(csk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1595) discard:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1596) spin_unlock_bh(&csk->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1597) rel_skb:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1598) __kfree_skb(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1599) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1600)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1601) static void do_fw4_ack(struct cxgbi_device *cdev, struct sk_buff *skb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1602) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1603) struct cxgbi_sock *csk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1604) struct cpl_fw4_ack *rpl = (struct cpl_fw4_ack *)skb->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1605) unsigned int tid = GET_TID(rpl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1606) struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1607) struct tid_info *t = lldi->tids;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1608)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1609) csk = lookup_tid(t, tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1610) if (unlikely(!csk))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1611) pr_err("can't find connection for tid %u.\n", tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1612) else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1613) log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1614) "csk 0x%p,%u,0x%lx,%u.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1615) csk, csk->state, csk->flags, csk->tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1616) cxgbi_sock_rcv_wr_ack(csk, rpl->credits, ntohl(rpl->snd_una),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1617) rpl->seq_vld);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1618) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1619) __kfree_skb(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1620) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1621)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1622) static void do_set_tcb_rpl(struct cxgbi_device *cdev, struct sk_buff *skb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1623) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1624) struct cpl_set_tcb_rpl *rpl = (struct cpl_set_tcb_rpl *)skb->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1625) unsigned int tid = GET_TID(rpl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1626) struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1627) struct tid_info *t = lldi->tids;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1628) struct cxgbi_sock *csk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1629)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1630) csk = lookup_tid(t, tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1631) if (!csk) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1632) pr_err("can't find conn. for tid %u.\n", tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1633) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1634) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1635)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1636) log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1637) "csk 0x%p,%u,%lx,%u, status 0x%x.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1638) csk, csk->state, csk->flags, csk->tid, rpl->status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1639)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1640) if (rpl->status != CPL_ERR_NONE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1641) pr_err("csk 0x%p,%u, SET_TCB_RPL status %u.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1642) csk, tid, rpl->status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1643) csk->err = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1644) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1645)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1646) complete(&csk->cmpl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1647)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1648) __kfree_skb(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1649) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1650)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1651) static int alloc_cpls(struct cxgbi_sock *csk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1652) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1653) csk->cpl_close = alloc_wr(sizeof(struct cpl_close_con_req),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1654) 0, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1655) if (!csk->cpl_close)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1656) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1657)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1658) csk->cpl_abort_req = alloc_wr(sizeof(struct cpl_abort_req),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1659) 0, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1660) if (!csk->cpl_abort_req)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1661) goto free_cpls;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1662)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1663) csk->cpl_abort_rpl = alloc_wr(sizeof(struct cpl_abort_rpl),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1664) 0, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1665) if (!csk->cpl_abort_rpl)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1666) goto free_cpls;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1667) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1668)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1669) free_cpls:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1670) cxgbi_sock_free_cpl_skbs(csk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1671) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1672) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1673)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1674) static inline void l2t_put(struct cxgbi_sock *csk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1675) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1676) if (csk->l2t) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1677) cxgb4_l2t_release(csk->l2t);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1678) csk->l2t = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1679) cxgbi_sock_put(csk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1680) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1681) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1682)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1683) static void release_offload_resources(struct cxgbi_sock *csk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1684) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1685) struct cxgb4_lld_info *lldi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1686) #if IS_ENABLED(CONFIG_IPV6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1687) struct net_device *ndev = csk->cdev->ports[csk->port_id];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1688) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1689)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1690) log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1691) "csk 0x%p,%u,0x%lx,%u.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1692) csk, csk->state, csk->flags, csk->tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1693)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1694) cxgbi_sock_free_cpl_skbs(csk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1695) cxgbi_sock_purge_write_queue(csk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1696) if (csk->wr_cred != csk->wr_max_cred) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1697) cxgbi_sock_purge_wr_queue(csk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1698) cxgbi_sock_reset_wr_list(csk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1699) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1700)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1701) l2t_put(csk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1702) #if IS_ENABLED(CONFIG_IPV6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1703) if (csk->csk_family == AF_INET6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1704) cxgb4_clip_release(ndev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1705) (const u32 *)&csk->saddr6.sin6_addr, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1706) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1707)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1708) if (cxgbi_sock_flag(csk, CTPF_HAS_ATID))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1709) free_atid(csk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1710) else if (cxgbi_sock_flag(csk, CTPF_HAS_TID)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1711) lldi = cxgbi_cdev_priv(csk->cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1712) cxgb4_remove_tid(lldi->tids, 0, csk->tid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1713) csk->csk_family);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1714) cxgbi_sock_clear_flag(csk, CTPF_HAS_TID);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1715) cxgbi_sock_put(csk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1716) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1717) csk->dst = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1718) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1719)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1720) #ifdef CONFIG_CHELSIO_T4_DCB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1721) static inline u8 get_iscsi_dcb_state(struct net_device *ndev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1722) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1723) return ndev->dcbnl_ops->getstate(ndev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1724) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1725)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1726) static int select_priority(int pri_mask)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1727) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1728) if (!pri_mask)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1729) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1730) return (ffs(pri_mask) - 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1731) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1732)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1733) static u8 get_iscsi_dcb_priority(struct net_device *ndev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1734) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1735) int rv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1736) u8 caps;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1737)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1738) struct dcb_app iscsi_dcb_app = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1739) .protocol = 3260
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1740) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1741)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1742) rv = (int)ndev->dcbnl_ops->getcap(ndev, DCB_CAP_ATTR_DCBX, &caps);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1743) if (rv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1744) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1745)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1746) if (caps & DCB_CAP_DCBX_VER_IEEE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1747) iscsi_dcb_app.selector = IEEE_8021QAZ_APP_SEL_STREAM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1748) rv = dcb_ieee_getapp_mask(ndev, &iscsi_dcb_app);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1749) if (!rv) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1750) iscsi_dcb_app.selector = IEEE_8021QAZ_APP_SEL_ANY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1751) rv = dcb_ieee_getapp_mask(ndev, &iscsi_dcb_app);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1752) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1753) } else if (caps & DCB_CAP_DCBX_VER_CEE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1754) iscsi_dcb_app.selector = DCB_APP_IDTYPE_PORTNUM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1755) rv = dcb_getapp(ndev, &iscsi_dcb_app);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1756) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1757)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1758) log_debug(1 << CXGBI_DBG_ISCSI,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1759) "iSCSI priority is set to %u\n", select_priority(rv));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1760) return select_priority(rv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1761) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1762) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1763)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1764) static int init_act_open(struct cxgbi_sock *csk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1765) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1766) struct cxgbi_device *cdev = csk->cdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1767) struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1768) struct net_device *ndev = cdev->ports[csk->port_id];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1769) struct sk_buff *skb = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1770) struct neighbour *n = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1771) void *daddr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1772) unsigned int step;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1773) unsigned int rxq_idx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1774) unsigned int size, size6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1775) unsigned int linkspeed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1776) unsigned int rcv_winf, snd_winf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1777) #ifdef CONFIG_CHELSIO_T4_DCB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1778) u8 priority = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1779) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1780) log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1781) "csk 0x%p,%u,0x%lx,%u.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1782) csk, csk->state, csk->flags, csk->tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1783)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1784) if (csk->csk_family == AF_INET)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1785) daddr = &csk->daddr.sin_addr.s_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1786) #if IS_ENABLED(CONFIG_IPV6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1787) else if (csk->csk_family == AF_INET6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1788) daddr = &csk->daddr6.sin6_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1789) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1790) else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1791) pr_err("address family 0x%x not supported\n", csk->csk_family);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1792) goto rel_resource;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1793) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1794)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1795) n = dst_neigh_lookup(csk->dst, daddr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1796)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1797) if (!n) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1798) pr_err("%s, can't get neighbour of csk->dst.\n", ndev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1799) goto rel_resource;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1800) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1801)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1802) if (!(n->nud_state & NUD_VALID))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1803) neigh_event_send(n, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1804)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1805) csk->atid = cxgb4_alloc_atid(lldi->tids, csk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1806) if (csk->atid < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1807) pr_err("%s, NO atid available.\n", ndev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1808) goto rel_resource_without_clip;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1809) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1810) cxgbi_sock_set_flag(csk, CTPF_HAS_ATID);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1811) cxgbi_sock_get(csk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1812)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1813) #ifdef CONFIG_CHELSIO_T4_DCB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1814) if (get_iscsi_dcb_state(ndev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1815) priority = get_iscsi_dcb_priority(ndev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1816)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1817) csk->dcb_priority = priority;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1818) csk->l2t = cxgb4_l2t_get(lldi->l2t, n, ndev, priority);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1819) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1820) csk->l2t = cxgb4_l2t_get(lldi->l2t, n, ndev, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1821) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1822) if (!csk->l2t) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1823) pr_err("%s, cannot alloc l2t.\n", ndev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1824) goto rel_resource_without_clip;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1825) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1826) cxgbi_sock_get(csk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1827)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1828) #if IS_ENABLED(CONFIG_IPV6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1829) if (csk->csk_family == AF_INET6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1830) cxgb4_clip_get(ndev, (const u32 *)&csk->saddr6.sin6_addr, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1831) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1832)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1833) if (is_t4(lldi->adapter_type)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1834) size = sizeof(struct cpl_act_open_req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1835) size6 = sizeof(struct cpl_act_open_req6);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1836) } else if (is_t5(lldi->adapter_type)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1837) size = sizeof(struct cpl_t5_act_open_req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1838) size6 = sizeof(struct cpl_t5_act_open_req6);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1839) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1840) size = sizeof(struct cpl_t6_act_open_req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1841) size6 = sizeof(struct cpl_t6_act_open_req6);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1842) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1843)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1844) if (csk->csk_family == AF_INET)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1845) skb = alloc_wr(size, 0, GFP_NOIO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1846) #if IS_ENABLED(CONFIG_IPV6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1847) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1848) skb = alloc_wr(size6, 0, GFP_NOIO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1849) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1850)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1851) if (!skb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1852) goto rel_resource;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1853) skb->sk = (struct sock *)csk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1854) t4_set_arp_err_handler(skb, csk, cxgbi_sock_act_open_req_arp_failure);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1855)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1856) if (!csk->mtu)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1857) csk->mtu = dst_mtu(csk->dst);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1858) cxgb4_best_mtu(lldi->mtus, csk->mtu, &csk->mss_idx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1859) csk->tx_chan = cxgb4_port_chan(ndev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1860) csk->smac_idx = ((struct port_info *)netdev_priv(ndev))->smt_idx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1861) step = lldi->ntxq / lldi->nchan;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1862) csk->txq_idx = cxgb4_port_idx(ndev) * step;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1863) step = lldi->nrxq / lldi->nchan;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1864) rxq_idx = (cxgb4_port_idx(ndev) * step) + (cdev->rxq_idx_cntr % step);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1865) cdev->rxq_idx_cntr++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1866) csk->rss_qid = lldi->rxq_ids[rxq_idx];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1867) linkspeed = ((struct port_info *)netdev_priv(ndev))->link_cfg.speed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1868) csk->snd_win = cxgb4i_snd_win;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1869) csk->rcv_win = cxgb4i_rcv_win;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1870) if (cxgb4i_rcv_win <= 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1871) csk->rcv_win = CXGB4I_DEFAULT_10G_RCV_WIN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1872) rcv_winf = linkspeed / SPEED_10000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1873) if (rcv_winf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1874) csk->rcv_win *= rcv_winf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1875) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1876) if (cxgb4i_snd_win <= 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1877) csk->snd_win = CXGB4I_DEFAULT_10G_SND_WIN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1878) snd_winf = linkspeed / SPEED_10000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1879) if (snd_winf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1880) csk->snd_win *= snd_winf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1881) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1882) csk->wr_cred = lldi->wr_cred -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1883) DIV_ROUND_UP(sizeof(struct cpl_abort_req), 16);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1884) csk->wr_max_cred = csk->wr_cred;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1885) csk->wr_una_cred = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1886) cxgbi_sock_reset_wr_list(csk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1887) csk->err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1888)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1889) pr_info_ipaddr("csk 0x%p,%u,0x%lx,%u,%u,%u, mtu %u,%u, smac %u.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1890) (&csk->saddr), (&csk->daddr), csk, csk->state,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1891) csk->flags, csk->tx_chan, csk->txq_idx, csk->rss_qid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1892) csk->mtu, csk->mss_idx, csk->smac_idx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1893)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1894) /* must wait for either a act_open_rpl or act_open_establish */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1895) if (!try_module_get(cdev->owner)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1896) pr_err("%s, try_module_get failed.\n", ndev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1897) goto rel_resource;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1898) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1899)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1900) cxgbi_sock_set_state(csk, CTP_ACTIVE_OPEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1901) if (csk->csk_family == AF_INET)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1902) send_act_open_req(csk, skb, csk->l2t);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1903) #if IS_ENABLED(CONFIG_IPV6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1904) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1905) send_act_open_req6(csk, skb, csk->l2t);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1906) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1907) neigh_release(n);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1908)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1909) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1910)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1911) rel_resource:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1912) #if IS_ENABLED(CONFIG_IPV6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1913) if (csk->csk_family == AF_INET6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1914) cxgb4_clip_release(ndev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1915) (const u32 *)&csk->saddr6.sin6_addr, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1916) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1917) rel_resource_without_clip:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1918) if (n)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1919) neigh_release(n);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1920) if (skb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1921) __kfree_skb(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1922) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1923) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1924)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1925) static cxgb4i_cplhandler_func cxgb4i_cplhandlers[NUM_CPL_CMDS] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1926) [CPL_ACT_ESTABLISH] = do_act_establish,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1927) [CPL_ACT_OPEN_RPL] = do_act_open_rpl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1928) [CPL_PEER_CLOSE] = do_peer_close,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1929) [CPL_ABORT_REQ_RSS] = do_abort_req_rss,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1930) [CPL_ABORT_RPL_RSS] = do_abort_rpl_rss,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1931) [CPL_CLOSE_CON_RPL] = do_close_con_rpl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1932) [CPL_FW4_ACK] = do_fw4_ack,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1933) [CPL_ISCSI_HDR] = do_rx_iscsi_hdr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1934) [CPL_ISCSI_DATA] = do_rx_iscsi_data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1935) [CPL_SET_TCB_RPL] = do_set_tcb_rpl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1936) [CPL_RX_DATA_DDP] = do_rx_data_ddp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1937) [CPL_RX_ISCSI_DDP] = do_rx_data_ddp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1938) [CPL_RX_ISCSI_CMP] = do_rx_iscsi_cmp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1939) [CPL_RX_DATA] = do_rx_data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1940) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1941)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1942) static int cxgb4i_ofld_init(struct cxgbi_device *cdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1943) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1944) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1945)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1946) if (cxgb4i_max_connect > CXGB4I_MAX_CONN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1947) cxgb4i_max_connect = CXGB4I_MAX_CONN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1948)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1949) rc = cxgbi_device_portmap_create(cdev, cxgb4i_sport_base,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1950) cxgb4i_max_connect);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1951) if (rc < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1952) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1953)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1954) cdev->csk_release_offload_resources = release_offload_resources;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1955) cdev->csk_push_tx_frames = push_tx_frames;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1956) cdev->csk_send_abort_req = send_abort_req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1957) cdev->csk_send_close_req = send_close_req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1958) cdev->csk_send_rx_credits = send_rx_credits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1959) cdev->csk_alloc_cpls = alloc_cpls;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1960) cdev->csk_init_act_open = init_act_open;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1961)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1962) pr_info("cdev 0x%p, offload up, added.\n", cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1963) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1964) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1965)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1966) static inline void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1967) ulp_mem_io_set_hdr(struct cxgbi_device *cdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1968) struct ulp_mem_io *req,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1969) unsigned int wr_len, unsigned int dlen,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1970) unsigned int pm_addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1971) int tid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1972) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1973) struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1974) struct ulptx_idata *idata = (struct ulptx_idata *)(req + 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1975)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1976) INIT_ULPTX_WR(req, wr_len, 0, tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1977) req->wr.wr_hi = htonl(FW_WR_OP_V(FW_ULPTX_WR) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1978) FW_WR_ATOMIC_V(0));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1979) req->cmd = htonl(ULPTX_CMD_V(ULP_TX_MEM_WRITE) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1980) ULP_MEMIO_ORDER_V(is_t4(lldi->adapter_type)) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1981) T5_ULP_MEMIO_IMM_V(!is_t4(lldi->adapter_type)));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1982) req->dlen = htonl(ULP_MEMIO_DATA_LEN_V(dlen >> 5));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1983) req->lock_addr = htonl(ULP_MEMIO_ADDR_V(pm_addr >> 5));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1984) req->len16 = htonl(DIV_ROUND_UP(wr_len - sizeof(req->wr), 16));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1985)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1986) idata->cmd_more = htonl(ULPTX_CMD_V(ULP_TX_SC_IMM));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1987) idata->len = htonl(dlen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1988) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1989)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1990) static struct sk_buff *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1991) ddp_ppod_init_idata(struct cxgbi_device *cdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1992) struct cxgbi_ppm *ppm,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1993) unsigned int idx, unsigned int npods,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1994) unsigned int tid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1995) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1996) unsigned int pm_addr = (idx << PPOD_SIZE_SHIFT) + ppm->llimit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1997) unsigned int dlen = npods << PPOD_SIZE_SHIFT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1998) unsigned int wr_len = roundup(sizeof(struct ulp_mem_io) +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1999) sizeof(struct ulptx_idata) + dlen, 16);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2000) struct sk_buff *skb = alloc_wr(wr_len, 0, GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2001)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2002) if (!skb) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2003) pr_err("%s: %s idx %u, npods %u, OOM.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2004) __func__, ppm->ndev->name, idx, npods);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2005) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2006) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2007)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2008) ulp_mem_io_set_hdr(cdev, (struct ulp_mem_io *)skb->head, wr_len, dlen,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2009) pm_addr, tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2010)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2011) return skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2012) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2013)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2014) static int ddp_ppod_write_idata(struct cxgbi_ppm *ppm, struct cxgbi_sock *csk,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2015) struct cxgbi_task_tag_info *ttinfo,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2016) unsigned int idx, unsigned int npods,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2017) struct scatterlist **sg_pp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2018) unsigned int *sg_off)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2019) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2020) struct cxgbi_device *cdev = csk->cdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2021) struct sk_buff *skb = ddp_ppod_init_idata(cdev, ppm, idx, npods,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2022) csk->tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2023) struct ulp_mem_io *req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2024) struct ulptx_idata *idata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2025) struct cxgbi_pagepod *ppod;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2026) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2027)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2028) if (!skb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2029) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2030)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2031) req = (struct ulp_mem_io *)skb->head;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2032) idata = (struct ulptx_idata *)(req + 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2033) ppod = (struct cxgbi_pagepod *)(idata + 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2034)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2035) for (i = 0; i < npods; i++, ppod++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2036) cxgbi_ddp_set_one_ppod(ppod, ttinfo, sg_pp, sg_off);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2037)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2038) cxgbi_skcb_set_flag(skb, SKCBF_TX_MEM_WRITE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2039) cxgbi_skcb_set_flag(skb, SKCBF_TX_FLAG_COMPL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2040) set_wr_txq(skb, CPL_PRIORITY_DATA, csk->port_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2041)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2042) spin_lock_bh(&csk->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2043) cxgbi_sock_skb_entail(csk, skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2044) spin_unlock_bh(&csk->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2045)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2046) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2047) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2048)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2049) static int ddp_set_map(struct cxgbi_ppm *ppm, struct cxgbi_sock *csk,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2050) struct cxgbi_task_tag_info *ttinfo)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2051) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2052) unsigned int pidx = ttinfo->idx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2053) unsigned int npods = ttinfo->npods;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2054) unsigned int i, cnt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2055) int err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2056) struct scatterlist *sg = ttinfo->sgl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2057) unsigned int offset = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2058)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2059) ttinfo->cid = csk->port_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2060)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2061) for (i = 0; i < npods; i += cnt, pidx += cnt) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2062) cnt = npods - i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2063)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2064) if (cnt > ULPMEM_IDATA_MAX_NPPODS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2065) cnt = ULPMEM_IDATA_MAX_NPPODS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2066) err = ddp_ppod_write_idata(ppm, csk, ttinfo, pidx, cnt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2067) &sg, &offset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2068) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2069) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2070) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2071)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2072) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2073) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2074)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2075) static int ddp_setup_conn_pgidx(struct cxgbi_sock *csk, unsigned int tid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2076) int pg_idx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2077) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2078) struct sk_buff *skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2079) struct cpl_set_tcb_field *req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2080)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2081) if (!pg_idx || pg_idx >= DDP_PGIDX_MAX)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2082) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2083)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2084) skb = alloc_wr(sizeof(*req), 0, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2085) if (!skb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2086) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2087)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2088) /* set up ulp page size */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2089) req = (struct cpl_set_tcb_field *)skb->head;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2090) INIT_TP_WR(req, csk->tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2091) OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_SET_TCB_FIELD, csk->tid));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2092) req->reply_ctrl = htons(NO_REPLY_V(0) | QUEUENO_V(csk->rss_qid));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2093) req->word_cookie = htons(0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2094) req->mask = cpu_to_be64(0x3 << 8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2095) req->val = cpu_to_be64(pg_idx << 8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2096) set_wr_txq(skb, CPL_PRIORITY_CONTROL, csk->port_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2097)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2098) log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2099) "csk 0x%p, tid 0x%x, pg_idx %u.\n", csk, csk->tid, pg_idx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2101) reinit_completion(&csk->cmpl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2102) cxgb4_ofld_send(csk->cdev->ports[csk->port_id], skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2103) wait_for_completion(&csk->cmpl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2104)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2105) return csk->err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2106) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2107)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2108) static int ddp_setup_conn_digest(struct cxgbi_sock *csk, unsigned int tid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2109) int hcrc, int dcrc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2110) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2111) struct sk_buff *skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2112) struct cpl_set_tcb_field *req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2113)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2114) if (!hcrc && !dcrc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2115) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2116)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2117) skb = alloc_wr(sizeof(*req), 0, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2118) if (!skb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2119) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2120)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2121) csk->hcrc_len = (hcrc ? 4 : 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2122) csk->dcrc_len = (dcrc ? 4 : 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2123) /* set up ulp submode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2124) req = (struct cpl_set_tcb_field *)skb->head;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2125) INIT_TP_WR(req, tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2126) OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_SET_TCB_FIELD, tid));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2127) req->reply_ctrl = htons(NO_REPLY_V(0) | QUEUENO_V(csk->rss_qid));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2128) req->word_cookie = htons(0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2129) req->mask = cpu_to_be64(0x3 << 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2130) req->val = cpu_to_be64(((hcrc ? ULP_CRC_HEADER : 0) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2131) (dcrc ? ULP_CRC_DATA : 0)) << 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2132) set_wr_txq(skb, CPL_PRIORITY_CONTROL, csk->port_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2133)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2134) log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2135) "csk 0x%p, tid 0x%x, crc %d,%d.\n", csk, csk->tid, hcrc, dcrc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2136)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2137) reinit_completion(&csk->cmpl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2138) cxgb4_ofld_send(csk->cdev->ports[csk->port_id], skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2139) wait_for_completion(&csk->cmpl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2140)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2141) return csk->err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2142) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2143)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2144) static struct cxgbi_ppm *cdev2ppm(struct cxgbi_device *cdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2145) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2146) return (struct cxgbi_ppm *)(*((struct cxgb4_lld_info *)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2147) (cxgbi_cdev_priv(cdev)))->iscsi_ppm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2148) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2149)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2150) static int cxgb4i_ddp_init(struct cxgbi_device *cdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2151) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2152) struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2153) struct net_device *ndev = cdev->ports[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2154) struct cxgbi_tag_format tformat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2155) int i, err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2156)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2157) if (!lldi->vr->iscsi.size) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2158) pr_warn("%s, iscsi NOT enabled, check config!\n", ndev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2159) return -EACCES;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2160) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2161)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2162) cdev->flags |= CXGBI_FLAG_USE_PPOD_OFLDQ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2163)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2164) memset(&tformat, 0, sizeof(struct cxgbi_tag_format));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2165) for (i = 0; i < 4; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2166) tformat.pgsz_order[i] = (lldi->iscsi_pgsz_order >> (i << 3))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2167) & 0xF;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2168) cxgbi_tagmask_check(lldi->iscsi_tagmask, &tformat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2169)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2170) pr_info("iscsi_edram.start 0x%x iscsi_edram.size 0x%x",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2171) lldi->vr->ppod_edram.start, lldi->vr->ppod_edram.size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2172)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2173) err = cxgbi_ddp_ppm_setup(lldi->iscsi_ppm, cdev, &tformat,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2174) lldi->vr->iscsi.size, lldi->iscsi_llimit,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2175) lldi->vr->iscsi.start, 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2176) lldi->vr->ppod_edram.start,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2177) lldi->vr->ppod_edram.size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2178)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2179) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2180) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2181)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2182) cdev->csk_ddp_setup_digest = ddp_setup_conn_digest;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2183) cdev->csk_ddp_setup_pgidx = ddp_setup_conn_pgidx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2184) cdev->csk_ddp_set_map = ddp_set_map;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2185) cdev->tx_max_size = min_t(unsigned int, ULP2_MAX_PDU_PAYLOAD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2186) lldi->iscsi_iolen - ISCSI_PDU_NONPAYLOAD_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2187) cdev->rx_max_size = min_t(unsigned int, ULP2_MAX_PDU_PAYLOAD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2188) lldi->iscsi_iolen - ISCSI_PDU_NONPAYLOAD_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2189) cdev->cdev2ppm = cdev2ppm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2190)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2191) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2192) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2193)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2194) static bool is_memfree(struct adapter *adap)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2195) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2196) u32 io;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2197)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2198) io = t4_read_reg(adap, MA_TARGET_MEM_ENABLE_A);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2199) if (is_t5(adap->params.chip)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2200) if ((io & EXT_MEM0_ENABLE_F) || (io & EXT_MEM1_ENABLE_F))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2201) return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2202) } else if (io & EXT_MEM_ENABLE_F) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2203) return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2204) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2205)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2206) return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2207) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2208)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2209) static void *t4_uld_add(const struct cxgb4_lld_info *lldi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2210) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2211) struct cxgbi_device *cdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2212) struct port_info *pi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2213) struct net_device *ndev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2214) struct adapter *adap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2215) struct tid_info *t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2216) u32 max_cmds = CXGB4I_SCSI_HOST_QDEPTH;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2217) u32 max_conn = CXGBI_MAX_CONN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2218) int i, rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2219)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2220) cdev = cxgbi_device_register(sizeof(*lldi), lldi->nports);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2221) if (!cdev) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2222) pr_info("t4 device 0x%p, register failed.\n", lldi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2223) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2224) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2225) pr_info("0x%p,0x%x, ports %u,%s, chan %u, q %u,%u, wr %u.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2226) cdev, lldi->adapter_type, lldi->nports,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2227) lldi->ports[0]->name, lldi->nchan, lldi->ntxq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2228) lldi->nrxq, lldi->wr_cred);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2229) for (i = 0; i < lldi->nrxq; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2230) log_debug(1 << CXGBI_DBG_DEV,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2231) "t4 0x%p, rxq id #%d: %u.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2232) cdev, i, lldi->rxq_ids[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2233)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2234) memcpy(cxgbi_cdev_priv(cdev), lldi, sizeof(*lldi));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2235) cdev->flags = CXGBI_FLAG_DEV_T4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2236) cdev->pdev = lldi->pdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2237) cdev->ports = lldi->ports;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2238) cdev->nports = lldi->nports;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2239) cdev->mtus = lldi->mtus;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2240) cdev->nmtus = NMTUS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2241) cdev->rx_credit_thres = (CHELSIO_CHIP_VERSION(lldi->adapter_type) <=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2242) CHELSIO_T5) ? cxgb4i_rx_credit_thres : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2243) cdev->skb_tx_rsvd = CXGB4I_TX_HEADER_LEN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2244) cdev->skb_rx_extra = sizeof(struct cpl_iscsi_hdr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2245) cdev->itp = &cxgb4i_iscsi_transport;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2246) cdev->owner = THIS_MODULE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2247)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2248) cdev->pfvf = FW_PFVF_CMD_PFN_V(lldi->pf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2249) pr_info("cdev 0x%p,%s, pfvf %u.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2250) cdev, lldi->ports[0]->name, cdev->pfvf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2251)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2252) rc = cxgb4i_ddp_init(cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2253) if (rc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2254) pr_info("t4 0x%p ddp init failed %d.\n", cdev, rc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2255) goto err_out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2256) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2257)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2258) ndev = cdev->ports[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2259) adap = netdev2adap(ndev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2260) if (adap) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2261) t = &adap->tids;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2262) if (t->ntids <= CXGBI_MAX_CONN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2263) max_conn = t->ntids;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2264)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2265) if (is_memfree(adap)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2266) cdev->flags |= CXGBI_FLAG_DEV_ISO_OFF;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2267) max_cmds = CXGB4I_SCSI_HOST_QDEPTH >> 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2268)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2269) pr_info("%s: 0x%p, tid %u, SO adapter.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2270) ndev->name, cdev, t->ntids);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2271) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2272) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2273) pr_info("%s, 0x%p, NO adapter struct.\n", ndev->name, cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2274) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2275)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2276) /* ISO is enabled in T5/T6 firmware version >= 1.13.43.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2277) if (!is_t4(lldi->adapter_type) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2278) (lldi->fw_vers >= 0x10d2b00) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2279) !(cdev->flags & CXGBI_FLAG_DEV_ISO_OFF))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2280) cdev->skb_iso_txhdr = sizeof(struct cpl_tx_data_iso);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2281)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2282) rc = cxgb4i_ofld_init(cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2283) if (rc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2284) pr_info("t4 0x%p ofld init failed.\n", cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2285) goto err_out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2286) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2287)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2288) cxgb4i_host_template.can_queue = max_cmds;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2289) rc = cxgbi_hbas_add(cdev, CXGB4I_MAX_LUN, max_conn,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2290) &cxgb4i_host_template, cxgb4i_stt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2291) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2292) goto err_out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2293)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2294) for (i = 0; i < cdev->nports; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2295) pi = netdev_priv(lldi->ports[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2296) cdev->hbas[i]->port_id = pi->port_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2297) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2298) return cdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2299)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2300) err_out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2301) cxgbi_device_unregister(cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2302) return ERR_PTR(-ENOMEM);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2303) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2304)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2305) #define RX_PULL_LEN 128
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2306) static int t4_uld_rx_handler(void *handle, const __be64 *rsp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2307) const struct pkt_gl *pgl)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2308) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2309) const struct cpl_act_establish *rpl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2310) struct sk_buff *skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2311) unsigned int opc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2312) struct cxgbi_device *cdev = handle;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2313)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2314) if (pgl == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2315) unsigned int len = 64 - sizeof(struct rsp_ctrl) - 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2316)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2317) skb = alloc_wr(len, 0, GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2318) if (!skb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2319) goto nomem;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2320) skb_copy_to_linear_data(skb, &rsp[1], len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2321) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2322) if (unlikely(*(u8 *)rsp != *(u8 *)pgl->va)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2323) pr_info("? FL 0x%p,RSS%#llx,FL %#llx,len %u.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2324) pgl->va, be64_to_cpu(*rsp),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2325) be64_to_cpu(*(u64 *)pgl->va),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2326) pgl->tot_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2327) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2328) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2329) skb = cxgb4_pktgl_to_skb(pgl, RX_PULL_LEN, RX_PULL_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2330) if (unlikely(!skb))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2331) goto nomem;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2332) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2333)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2334) rpl = (struct cpl_act_establish *)skb->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2335) opc = rpl->ot.opcode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2336) log_debug(1 << CXGBI_DBG_TOE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2337) "cdev %p, opcode 0x%x(0x%x,0x%x), skb %p.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2338) cdev, opc, rpl->ot.opcode_tid, ntohl(rpl->ot.opcode_tid), skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2339) if (opc >= ARRAY_SIZE(cxgb4i_cplhandlers) || !cxgb4i_cplhandlers[opc]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2340) pr_err("No handler for opcode 0x%x.\n", opc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2341) __kfree_skb(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2342) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2343) cxgb4i_cplhandlers[opc](cdev, skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2344)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2345) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2346) nomem:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2347) log_debug(1 << CXGBI_DBG_TOE, "OOM bailing out.\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2348) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2349) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2350)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2351) static int t4_uld_state_change(void *handle, enum cxgb4_state state)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2352) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2353) struct cxgbi_device *cdev = handle;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2354)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2355) switch (state) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2356) case CXGB4_STATE_UP:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2357) pr_info("cdev 0x%p, UP.\n", cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2358) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2359) case CXGB4_STATE_START_RECOVERY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2360) pr_info("cdev 0x%p, RECOVERY.\n", cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2361) /* close all connections */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2362) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2363) case CXGB4_STATE_DOWN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2364) pr_info("cdev 0x%p, DOWN.\n", cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2365) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2366) case CXGB4_STATE_DETACH:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2367) pr_info("cdev 0x%p, DETACH.\n", cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2368) cxgbi_device_unregister(cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2369) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2370) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2371) pr_info("cdev 0x%p, unknown state %d.\n", cdev, state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2372) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2373) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2374) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2375) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2376)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2377) #ifdef CONFIG_CHELSIO_T4_DCB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2378) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2379) cxgb4_dcb_change_notify(struct notifier_block *self, unsigned long val,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2380) void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2381) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2382) int i, port = 0xFF;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2383) struct net_device *ndev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2384) struct cxgbi_device *cdev = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2385) struct dcb_app_type *iscsi_app = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2386) struct cxgbi_ports_map *pmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2387) u8 priority;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2388)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2389) if (iscsi_app->dcbx & DCB_CAP_DCBX_VER_IEEE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2390) if ((iscsi_app->app.selector != IEEE_8021QAZ_APP_SEL_STREAM) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2391) (iscsi_app->app.selector != IEEE_8021QAZ_APP_SEL_ANY))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2392) return NOTIFY_DONE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2393)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2394) priority = iscsi_app->app.priority;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2395) } else if (iscsi_app->dcbx & DCB_CAP_DCBX_VER_CEE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2396) if (iscsi_app->app.selector != DCB_APP_IDTYPE_PORTNUM)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2397) return NOTIFY_DONE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2398)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2399) if (!iscsi_app->app.priority)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2400) return NOTIFY_DONE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2401)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2402) priority = ffs(iscsi_app->app.priority) - 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2403) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2404) return NOTIFY_DONE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2405) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2406)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2407) if (iscsi_app->app.protocol != 3260)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2408) return NOTIFY_DONE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2409)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2410) log_debug(1 << CXGBI_DBG_ISCSI, "iSCSI priority for ifid %d is %u\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2411) iscsi_app->ifindex, priority);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2412)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2413) ndev = dev_get_by_index(&init_net, iscsi_app->ifindex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2414) if (!ndev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2415) return NOTIFY_DONE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2416)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2417) cdev = cxgbi_device_find_by_netdev_rcu(ndev, &port);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2418)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2419) dev_put(ndev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2420) if (!cdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2421) return NOTIFY_DONE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2422)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2423) pmap = &cdev->pmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2424)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2425) for (i = 0; i < pmap->used; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2426) if (pmap->port_csk[i]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2427) struct cxgbi_sock *csk = pmap->port_csk[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2428)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2429) if (csk->dcb_priority != priority) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2430) iscsi_conn_failure(csk->user_data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2431) ISCSI_ERR_CONN_FAILED);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2432) pr_info("Restarting iSCSI connection %p with "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2433) "priority %u->%u.\n", csk,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2434) csk->dcb_priority, priority);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2435) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2436) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2437) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2438) return NOTIFY_OK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2439) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2440) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2441)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2442) static int __init cxgb4i_init_module(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2443) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2444) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2445)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2446) printk(KERN_INFO "%s", version);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2447)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2448) rc = cxgbi_iscsi_init(&cxgb4i_iscsi_transport, &cxgb4i_stt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2449) if (rc < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2450) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2451) cxgb4_register_uld(CXGB4_ULD_ISCSI, &cxgb4i_uld_info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2452)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2453) #ifdef CONFIG_CHELSIO_T4_DCB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2454) pr_info("%s dcb enabled.\n", DRV_MODULE_NAME);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2455) register_dcbevent_notifier(&cxgb4_dcb_change);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2456) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2457) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2458) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2459)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2460) static void __exit cxgb4i_exit_module(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2461) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2462) #ifdef CONFIG_CHELSIO_T4_DCB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2463) unregister_dcbevent_notifier(&cxgb4_dcb_change);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2464) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2465) cxgb4_unregister_uld(CXGB4_ULD_ISCSI);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2466) cxgbi_device_unregister_all(CXGBI_FLAG_DEV_T4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2467) cxgbi_iscsi_cleanup(&cxgb4i_iscsi_transport, &cxgb4i_stt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2468) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2469)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2470) module_init(cxgb4i_init_module);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2471) module_exit(cxgb4i_exit_module);
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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