cregit-Linux how code gets into the kernel

Release 4.11 drivers/net/ethernet/brocade/bna/bna_enet.c

/*
 * Linux network driver for QLogic BR-series Converged Network Adapter.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License (GPL) Version 2 as
 * published by the Free Software Foundation
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 */
/*
 * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
 * Copyright (c) 2014-2015 QLogic Corporation
 * All rights reserved
 * www.qlogic.com
 */
#include "bna.h"


static inline int ethport_can_be_up(struct bna_ethport *ethport) { int ready = 0; if (ethport->bna->enet.type == BNA_ENET_T_REGULAR) ready = ((ethport->flags & BNA_ETHPORT_F_ADMIN_UP) && (ethport->flags & BNA_ETHPORT_F_RX_STARTED) && (ethport->flags & BNA_ETHPORT_F_PORT_ENABLED)); else ready = ((ethport->flags & BNA_ETHPORT_F_ADMIN_UP) && (ethport->flags & BNA_ETHPORT_F_RX_STARTED) && !(ethport->flags & BNA_ETHPORT_F_PORT_ENABLED)); return ready; }

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#define ethport_is_up ethport_can_be_up enum bna_ethport_event { ETHPORT_E_START = 1, ETHPORT_E_STOP = 2, ETHPORT_E_FAIL = 3, ETHPORT_E_UP = 4, ETHPORT_E_DOWN = 5, ETHPORT_E_FWRESP_UP_OK = 6, ETHPORT_E_FWRESP_DOWN = 7, ETHPORT_E_FWRESP_UP_FAIL = 8, }; enum bna_enet_event { ENET_E_START = 1, ENET_E_STOP = 2, ENET_E_FAIL = 3, ENET_E_PAUSE_CFG = 4, ENET_E_MTU_CFG = 5, ENET_E_FWRESP_PAUSE = 6, ENET_E_CHLD_STOPPED = 7, }; enum bna_ioceth_event { IOCETH_E_ENABLE = 1, IOCETH_E_DISABLE = 2, IOCETH_E_IOC_RESET = 3, IOCETH_E_IOC_FAILED = 4, IOCETH_E_IOC_READY = 5, IOCETH_E_ENET_ATTR_RESP = 6, IOCETH_E_ENET_STOPPED = 7, IOCETH_E_IOC_DISABLED = 8, }; #define bna_stats_copy(_name, _type) \ do { \ count = sizeof(struct bfi_enet_stats_ ## _type) / sizeof(u64); \ stats_src = (u64 *)&bna->stats.hw_stats_kva->_name ## _stats; \ stats_dst = (u64 *)&bna->stats.hw_stats._name ## _stats; \ for (i = 0; i < count; i++) \ stats_dst[i] = be64_to_cpu(stats_src[i]); \ } while (0) \ /* * FW response handlers */
static void bna_bfi_ethport_enable_aen(struct bna_ethport *ethport, struct bfi_msgq_mhdr *msghdr) { ethport->flags |= BNA_ETHPORT_F_PORT_ENABLED; if (ethport_can_be_up(ethport)) bfa_fsm_send_event(ethport, ETHPORT_E_UP); }

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static void bna_bfi_ethport_disable_aen(struct bna_ethport *ethport, struct bfi_msgq_mhdr *msghdr) { int ethport_up = ethport_is_up(ethport); ethport->flags &= ~BNA_ETHPORT_F_PORT_ENABLED; if (ethport_up) bfa_fsm_send_event(ethport, ETHPORT_E_DOWN); }

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static void bna_bfi_ethport_admin_rsp(struct bna_ethport *ethport, struct bfi_msgq_mhdr *msghdr) { struct bfi_enet_enable_req *admin_req = &ethport->bfi_enet_cmd.admin_req; struct bfi_enet_rsp *rsp = container_of(msghdr, struct bfi_enet_rsp, mh); switch (admin_req->enable) { case BNA_STATUS_T_ENABLED: if (rsp->error == BFI_ENET_CMD_OK) bfa_fsm_send_event(ethport, ETHPORT_E_FWRESP_UP_OK); else { ethport->flags &= ~BNA_ETHPORT_F_PORT_ENABLED; bfa_fsm_send_event(ethport, ETHPORT_E_FWRESP_UP_FAIL); } break; case BNA_STATUS_T_DISABLED: bfa_fsm_send_event(ethport, ETHPORT_E_FWRESP_DOWN); ethport->link_status = BNA_LINK_DOWN; ethport->link_cbfn(ethport->bna->bnad, BNA_LINK_DOWN); break; } }

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static void bna_bfi_ethport_lpbk_rsp(struct bna_ethport *ethport, struct bfi_msgq_mhdr *msghdr) { struct bfi_enet_diag_lb_req *diag_lb_req = &ethport->bfi_enet_cmd.lpbk_req; struct bfi_enet_rsp *rsp = container_of(msghdr, struct bfi_enet_rsp, mh); switch (diag_lb_req->enable) { case BNA_STATUS_T_ENABLED: if (rsp->error == BFI_ENET_CMD_OK) bfa_fsm_send_event(ethport, ETHPORT_E_FWRESP_UP_OK); else { ethport->flags &= ~BNA_ETHPORT_F_ADMIN_UP; bfa_fsm_send_event(ethport, ETHPORT_E_FWRESP_UP_FAIL); } break; case BNA_STATUS_T_DISABLED: bfa_fsm_send_event(ethport, ETHPORT_E_FWRESP_DOWN); break; } }

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static void bna_bfi_pause_set_rsp(struct bna_enet *enet, struct bfi_msgq_mhdr *msghdr) { bfa_fsm_send_event(enet, ENET_E_FWRESP_PAUSE); }

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static void bna_bfi_attr_get_rsp(struct bna_ioceth *ioceth, struct bfi_msgq_mhdr *msghdr) { struct bfi_enet_attr_rsp *rsp = container_of(msghdr, struct bfi_enet_attr_rsp, mh); /** * Store only if not set earlier, since BNAD can override the HW * attributes */ if (!ioceth->attr.fw_query_complete) { ioceth->attr.num_txq = ntohl(rsp->max_cfg); ioceth->attr.num_rxp = ntohl(rsp->max_cfg); ioceth->attr.num_ucmac = ntohl(rsp->max_ucmac); ioceth->attr.num_mcmac = BFI_ENET_MAX_MCAM; ioceth->attr.max_rit_size = ntohl(rsp->rit_size); ioceth->attr.fw_query_complete = true; } bfa_fsm_send_event(ioceth, IOCETH_E_ENET_ATTR_RESP); }

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static void bna_bfi_stats_get_rsp(struct bna *bna, struct bfi_msgq_mhdr *msghdr) { struct bfi_enet_stats_req *stats_req = &bna->stats_mod.stats_get; u64 *stats_src; u64 *stats_dst; u32 tx_enet_mask = ntohl(stats_req->tx_enet_mask); u32 rx_enet_mask = ntohl(stats_req->rx_enet_mask); int count; int i; bna_stats_copy(mac, mac); bna_stats_copy(bpc, bpc); bna_stats_copy(rad, rad); bna_stats_copy(rlb, rad); bna_stats_copy(fc_rx, fc_rx); bna_stats_copy(fc_tx, fc_tx); stats_src = (u64 *)&(bna->stats.hw_stats_kva->rxf_stats[0]); /* Copy Rxf stats to SW area, scatter them while copying */ for (i = 0; i < BFI_ENET_CFG_MAX; i++) { stats_dst = (u64 *)&(bna->stats.hw_stats.rxf_stats[i]); memset(stats_dst, 0, sizeof(struct bfi_enet_stats_rxf)); if (rx_enet_mask & BIT(i)) { int k; count = sizeof(struct bfi_enet_stats_rxf) / sizeof(u64); for (k = 0; k < count; k++) { stats_dst[k] = be64_to_cpu(*stats_src); stats_src++; } } } /* Copy Txf stats to SW area, scatter them while copying */ for (i = 0; i < BFI_ENET_CFG_MAX; i++) { stats_dst = (u64 *)&(bna->stats.hw_stats.txf_stats[i]); memset(stats_dst, 0, sizeof(struct bfi_enet_stats_txf)); if (tx_enet_mask & BIT(i)) { int k; count = sizeof(struct bfi_enet_stats_txf) / sizeof(u64); for (k = 0; k < count; k++) { stats_dst[k] = be64_to_cpu(*stats_src); stats_src++; } } } bna->stats_mod.stats_get_busy = false; bnad_cb_stats_get(bna->bnad, BNA_CB_SUCCESS, &bna->stats); }

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static void bna_bfi_ethport_linkup_aen(struct bna_ethport *ethport, struct bfi_msgq_mhdr *msghdr) { ethport->link_status = BNA_LINK_UP; /* Dispatch events */ ethport->link_cbfn(ethport->bna->bnad, ethport->link_status); }

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static void bna_bfi_ethport_linkdown_aen(struct bna_ethport *ethport, struct bfi_msgq_mhdr *msghdr) { ethport->link_status = BNA_LINK_DOWN; /* Dispatch events */ ethport->link_cbfn(ethport->bna->bnad, BNA_LINK_DOWN); }

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static void bna_err_handler(struct bna *bna, u32 intr_status) { if (BNA_IS_HALT_INTR(bna, intr_status)) bna_halt_clear(bna); bfa_nw_ioc_error_isr(&bna->ioceth.ioc); }

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void bna_mbox_handler(struct bna *bna, u32 intr_status) { if (BNA_IS_ERR_INTR(bna, intr_status)) { bna_err_handler(bna, intr_status); return; } if (BNA_IS_MBOX_INTR(bna, intr_status)) bfa_nw_ioc_mbox_isr(&bna->ioceth.ioc); }

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static void bna_msgq_rsp_handler(void *arg, struct bfi_msgq_mhdr *msghdr) { struct bna *bna = (struct bna *)arg; struct bna_tx *tx; struct bna_rx *rx; switch (msghdr->msg_id) { case BFI_ENET_I2H_RX_CFG_SET_RSP: bna_rx_from_rid(bna, msghdr->enet_id, rx); if (rx) bna_bfi_rx_enet_start_rsp(rx, msghdr); break; case BFI_ENET_I2H_RX_CFG_CLR_RSP: bna_rx_from_rid(bna, msghdr->enet_id, rx); if (rx) bna_bfi_rx_enet_stop_rsp(rx, msghdr); break; case BFI_ENET_I2H_RIT_CFG_RSP: case BFI_ENET_I2H_RSS_CFG_RSP: case BFI_ENET_I2H_RSS_ENABLE_RSP: case BFI_ENET_I2H_RX_PROMISCUOUS_RSP: case BFI_ENET_I2H_RX_DEFAULT_RSP: case BFI_ENET_I2H_MAC_UCAST_CLR_RSP: case BFI_ENET_I2H_MAC_UCAST_ADD_RSP: case BFI_ENET_I2H_MAC_UCAST_DEL_RSP: case BFI_ENET_I2H_MAC_MCAST_DEL_RSP: case BFI_ENET_I2H_MAC_MCAST_FILTER_RSP: case BFI_ENET_I2H_RX_VLAN_SET_RSP: case BFI_ENET_I2H_RX_VLAN_STRIP_ENABLE_RSP: bna_rx_from_rid(bna, msghdr->enet_id, rx); if (rx) bna_bfi_rxf_cfg_rsp(&rx->rxf, msghdr); break; case BFI_ENET_I2H_MAC_UCAST_SET_RSP: bna_rx_from_rid(bna, msghdr->enet_id, rx); if (rx) bna_bfi_rxf_ucast_set_rsp(&rx->rxf, msghdr); break; case BFI_ENET_I2H_MAC_MCAST_ADD_RSP: bna_rx_from_rid(bna, msghdr->enet_id, rx); if (rx) bna_bfi_rxf_mcast_add_rsp(&rx->rxf, msghdr); break; case BFI_ENET_I2H_TX_CFG_SET_RSP: bna_tx_from_rid(bna, msghdr->enet_id, tx); if (tx) bna_bfi_tx_enet_start_rsp(tx, msghdr); break; case BFI_ENET_I2H_TX_CFG_CLR_RSP: bna_tx_from_rid(bna, msghdr->enet_id, tx); if (tx) bna_bfi_tx_enet_stop_rsp(tx, msghdr); break; case BFI_ENET_I2H_PORT_ADMIN_RSP: bna_bfi_ethport_admin_rsp(&bna->ethport, msghdr); break; case BFI_ENET_I2H_DIAG_LOOPBACK_RSP: bna_bfi_ethport_lpbk_rsp(&bna->ethport, msghdr); break; case BFI_ENET_I2H_SET_PAUSE_RSP: bna_bfi_pause_set_rsp(&bna->enet, msghdr); break; case BFI_ENET_I2H_GET_ATTR_RSP: bna_bfi_attr_get_rsp(&bna->ioceth, msghdr); break; case BFI_ENET_I2H_STATS_GET_RSP: bna_bfi_stats_get_rsp(bna, msghdr); break; case BFI_ENET_I2H_STATS_CLR_RSP: /* No-op */ break; case BFI_ENET_I2H_LINK_UP_AEN: bna_bfi_ethport_linkup_aen(&bna->ethport, msghdr); break; case BFI_ENET_I2H_LINK_DOWN_AEN: bna_bfi_ethport_linkdown_aen(&bna->ethport, msghdr); break; case BFI_ENET_I2H_PORT_ENABLE_AEN: bna_bfi_ethport_enable_aen(&bna->ethport, msghdr); break; case BFI_ENET_I2H_PORT_DISABLE_AEN: bna_bfi_ethport_disable_aen(&bna->ethport, msghdr); break; case BFI_ENET_I2H_BW_UPDATE_AEN: bna_bfi_bw_update_aen(&bna->tx_mod); break; default: break; } }

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/* ETHPORT */ #define call_ethport_stop_cbfn(_ethport) \ do { \ if ((_ethport)->stop_cbfn) { \ void (*cbfn)(struct bna_enet *); \ cbfn = (_ethport)->stop_cbfn; \ (_ethport)->stop_cbfn = NULL; \ cbfn(&(_ethport)->bna->enet); \ } \ } while (0) #define call_ethport_adminup_cbfn(ethport, status) \ do { \ if ((ethport)->adminup_cbfn) { \ void (*cbfn)(struct bnad *, enum bna_cb_status); \ cbfn = (ethport)->adminup_cbfn; \ (ethport)->adminup_cbfn = NULL; \ cbfn((ethport)->bna->bnad, status); \ } \ } while (0)
static void bna_bfi_ethport_admin_up(struct bna_ethport *ethport) { struct bfi_enet_enable_req *admin_up_req = &ethport->bfi_enet_cmd.admin_req; bfi_msgq_mhdr_set(admin_up_req->mh, BFI_MC_ENET, BFI_ENET_H2I_PORT_ADMIN_UP_REQ, 0, 0); admin_up_req->mh.num_entries = htons( bfi_msgq_num_cmd_entries(sizeof(struct bfi_enet_enable_req))); admin_up_req->enable = BNA_STATUS_T_ENABLED; bfa_msgq_cmd_set(&ethport->msgq_cmd, NULL, NULL, sizeof(struct bfi_enet_enable_req), &admin_up_req->mh); bfa_msgq_cmd_post(&ethport->bna->msgq, &ethport->msgq_cmd); }

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static void bna_bfi_ethport_admin_down(struct bna_ethport *ethport) { struct bfi_enet_enable_req *admin_down_req = &ethport->bfi_enet_cmd.admin_req; bfi_msgq_mhdr_set(admin_down_req->mh, BFI_MC_ENET, BFI_ENET_H2I_PORT_ADMIN_UP_REQ, 0, 0); admin_down_req->mh.num_entries = htons( bfi_msgq_num_cmd_entries(sizeof(struct bfi_enet_enable_req))); admin_down_req->enable = BNA_STATUS_T_DISABLED; bfa_msgq_cmd_set(&ethport->msgq_cmd, NULL, NULL, sizeof(struct bfi_enet_enable_req), &admin_down_req->mh); bfa_msgq_cmd_post(&ethport->bna->msgq, &ethport->msgq_cmd); }

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static void bna_bfi_ethport_lpbk_up(struct bna_ethport *ethport) { struct bfi_enet_diag_lb_req *lpbk_up_req = &ethport->bfi_enet_cmd.lpbk_req; bfi_msgq_mhdr_set(lpbk_up_req->mh, BFI_MC_ENET, BFI_ENET_H2I_DIAG_LOOPBACK_REQ, 0, 0); lpbk_up_req->mh.num_entries = htons( bfi_msgq_num_cmd_entries(sizeof(struct bfi_enet_diag_lb_req))); lpbk_up_req->mode = (ethport->bna->enet.type == BNA_ENET_T_LOOPBACK_INTERNAL) ? BFI_ENET_DIAG_LB_OPMODE_EXT : BFI_ENET_DIAG_LB_OPMODE_CBL; lpbk_up_req->enable = BNA_STATUS_T_ENABLED; bfa_msgq_cmd_set(&ethport->msgq_cmd, NULL, NULL, sizeof(struct bfi_enet_diag_lb_req), &lpbk_up_req->mh); bfa_msgq_cmd_post(&ethport->bna->msgq, &ethport->msgq_cmd); }

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static void bna_bfi_ethport_lpbk_down(struct bna_ethport *ethport) { struct bfi_enet_diag_lb_req *lpbk_down_req = &ethport->bfi_enet_cmd.lpbk_req; bfi_msgq_mhdr_set(lpbk_down_req->mh, BFI_MC_ENET, BFI_ENET_H2I_DIAG_LOOPBACK_REQ, 0, 0); lpbk_down_req->mh.num_entries = htons( bfi_msgq_num_cmd_entries(sizeof(struct bfi_enet_diag_lb_req))); lpbk_down_req->enable = BNA_STATUS_T_DISABLED; bfa_msgq_cmd_set(&ethport->msgq_cmd, NULL, NULL, sizeof(struct bfi_enet_diag_lb_req), &lpbk_down_req->mh); bfa_msgq_cmd_post(&ethport->bna->msgq, &ethport->msgq_cmd); }

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static void bna_bfi_ethport_up(struct bna_ethport *ethport) { if (ethport->bna->enet.type == BNA_ENET_T_REGULAR) bna_bfi_ethport_admin_up(ethport); else bna_bfi_ethport_lpbk_up(ethport); }

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static void bna_bfi_ethport_down(struct bna_ethport *ethport) { if (ethport->bna->enet.type == BNA_ENET_T_REGULAR) bna_bfi_ethport_admin_down(ethport); else bna_bfi_ethport_lpbk_down(ethport); }

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bfa_fsm_state_decl(bna_ethport, stopped, struct bna_ethport, enum bna_ethport_event); bfa_fsm_state_decl(bna_ethport, down, struct bna_ethport, enum bna_ethport_event); bfa_fsm_state_decl(bna_ethport, up_resp_wait, struct bna_ethport, enum bna_ethport_event); bfa_fsm_state_decl(bna_ethport, down_resp_wait, struct bna_ethport, enum bna_ethport_event); bfa_fsm_state_decl(bna_ethport, up, struct bna_ethport, enum bna_ethport_event); bfa_fsm_state_decl(bna_ethport, last_resp_wait, struct bna_ethport, enum bna_ethport_event);
static void bna_ethport_sm_stopped_entry(struct bna_ethport *ethport) { call_ethport_stop_cbfn(ethport); }

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static void bna_ethport_sm_stopped(struct bna_ethport *ethport, enum bna_ethport_event event) { switch (event) { case ETHPORT_E_START: bfa_fsm_set_state(ethport, bna_ethport_sm_down); break; case ETHPORT_E_STOP: call_ethport_stop_cbfn(ethport); break; case ETHPORT_E_FAIL: /* No-op */ break; case ETHPORT_E_DOWN: /* This event is received due to Rx objects failing */ /* No-op */ break; default: bfa_sm_fault(event); } }

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static void bna_ethport_sm_down_entry(struct bna_ethport *ethport) { }

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static void bna_ethport_sm_down(struct bna_ethport *ethport, enum bna_ethport_event event) { switch (event) { case ETHPORT_E_STOP: bfa_fsm_set_state(ethport, bna_ethport_sm_stopped); break; case ETHPORT_E_FAIL: bfa_fsm_set_state(ethport, bna_ethport_sm_stopped); break; case ETHPORT_E_UP: bfa_fsm_set_state(ethport, bna_ethport_sm_up_resp_wait); bna_bfi_ethport_up(ethport); break; default: bfa_sm_fault(event); } }

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static void bna_ethport_sm_up_resp_wait_entry(struct bna_ethport *ethport) { }

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static void bna_ethport_sm_up_resp_wait(struct bna_ethport *ethport, enum bna_ethport_event event) { switch (event) { case ETHPORT_E_STOP: bfa_fsm_set_state(ethport, bna_ethport_sm_last_resp_wait); break; case ETHPORT_E_FAIL: call_ethport_adminup_cbfn(ethport, BNA_CB_FAIL); bfa_fsm_set_state(ethport, bna_ethport_sm_stopped); break; case ETHPORT_E_DOWN: call_ethport_adminup_cbfn(ethport, BNA_CB_INTERRUPT); bfa_fsm_set_state(ethport, bna_ethport_sm_down_resp_wait); break; case ETHPORT_E_FWRESP_UP_OK: call_ethport_adminup_cbfn(ethport, BNA_CB_SUCCESS); bfa_fsm_set_state(ethport, bna_ethport_sm_up); break; case ETHPORT_E_FWRESP_UP_FAIL: call_ethport_adminup_cbfn(ethport, BNA_CB_FAIL); bfa_fsm_set_state(ethport, bna_ethport_sm_down); break; case ETHPORT_E_FWRESP_DOWN: /* down_resp_wait -> up_resp_wait transition on ETHPORT_E_UP */ bna_bfi_ethport_up(ethport); break; default: bfa_sm_fault(event); } }

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static void bna_ethport_sm_down_resp_wait_entry(struct bna_ethport *ethport) { /** * NOTE: Do not call bna_bfi_ethport_down() here. That will over step * mbox due to up_resp_wait -> down_resp_wait transition on event * ETHPORT_E_DOWN */ }

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static void bna_ethport_sm_down_resp_wait(struct bna_ethport *ethport, enum bna_ethport_event event) { switch (event) { case ETHPORT_E_STOP: bfa_fsm_set_state(ethport, bna_ethport_sm_last_resp_wait); break; case ETHPORT_E_FAIL: bfa_fsm_set_state(ethport, bna_ethport_sm_stopped); break; case ETHPORT_E_UP: bfa_fsm_set_state(ethport, bna_ethport_sm_up_resp_wait); break; case ETHPORT_E_FWRESP_UP_OK: /* up_resp_wait->down_resp_wait transition on ETHPORT_E_DOWN */ bna_bfi_ethport_down(ethport); break; case ETHPORT_E_FWRESP_UP_FAIL: case ETHPORT_E_FWRESP_DOWN: bfa_fsm_set_state(ethport, bna_ethport_sm_down); break; default: bfa_sm_fault(event); } }

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static void bna_ethport_sm_up_entry(struct bna_ethport *ethport) { }

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static void bna_ethport_sm_up(struct bna_ethport *ethport, enum bna_ethport_event event) { switch (event) { case ETHPORT_E_STOP: bfa_fsm_set_state(ethport, bna_ethport_sm_last_resp_wait); bna_bfi_ethport_down(ethport); break; case ETHPORT_E_FAIL: bfa_fsm_set_state(ethport, bna_ethport_sm_stopped); break; case ETHPORT_E_DOWN: bfa_fsm_set_state(ethport, bna_ethport_sm_down_resp_wait); bna_bfi_ethport_down(ethport); break; default: bfa_sm_fault(event); } }

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static void bna_ethport_sm_last_resp_wait_entry(struct bna_ethport *ethport) { }

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static void bna_ethport_sm_last_resp_wait(struct bna_ethport *ethport, enum bna_ethport_event event) { switch (event) { case ETHPORT_E_FAIL: bfa_fsm_set_state(ethport, bna_ethport_sm_stopped); break; case ETHPORT_E_DOWN: /** * This event is received due to Rx objects stopping in * parallel to ethport */ /* No-op */ break; case ETHPORT_E_FWRESP_UP_OK: /* up_resp_wait->last_resp_wait transition on ETHPORT_T_STOP */ bna_bfi_ethport_down(ethport); break; case ETHPORT_E_FWRESP_UP_FAIL: case ETHPORT_E_FWRESP_DOWN: bfa_fsm_set_state(ethport, bna_ethport_sm_stopped); break; default: bfa_sm_fault(event); } }

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static void bna_ethport_init(struct bna_ethport *ethport, struct bna *bna) { ethport->flags |= (BNA_ETHPORT_F_ADMIN_UP | BNA_ETHPORT_F_PORT_ENABLED); ethport->bna = bna; ethport->link_status = BNA_LINK_DOWN; ethport->link_cbfn = bnad_cb_ethport_link_status; ethport->rx_started_count = 0; ethport->stop_cbfn = NULL; ethport->adminup_cbfn = NULL; bfa_fsm_set_state(ethport, bna_ethport_sm_stopped); }

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static void bna_ethport_uninit(struct bna_ethport *ethport) { ethport->flags &= ~BNA_ETHPORT_F_ADMIN_UP; ethport->flags &= ~BNA_ETHPORT_F_PORT_ENABLED; ethport->bna = NULL; }

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static void bna_ethport_start(struct bna_ethport *ethport) { bfa_fsm_send_event(ethport, ETHPORT_E_START); }

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static void bna_enet_cb_ethport_stopped(struct bna_enet *enet) { bfa_wc_down(&enet->chld_stop_wc); }

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static void bna_ethport_stop(struct bna_ethport *ethport) { ethport->stop_cbfn = bna_enet_cb_ethport_stopped; bfa_fsm_send_event(ethport, ETHPORT_E_STOP); }

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static void bna_ethport_fail(struct bna_ethport *ethport) { /* Reset the physical port status to enabled */ ethport->flags |= BNA_ETHPORT_F_PORT_ENABLED; if (ethport->link_status != BNA_LINK_DOWN) { ethport->link_status = BNA_LINK_DOWN; ethport->link_cbfn(ethport->bna->bnad, BNA_LINK_DOWN); } bfa_fsm_send_event(ethport, ETHPORT_E_FAIL); }

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/* Should be called only when ethport is disabled */
void bna_ethport_cb_rx_started(struct bna_ethport *ethport) { ethport->rx_started_count++; if (ethport->rx_started_count == 1) { ethport->flags |= BNA_ETHPORT_F_RX_STARTED; if (ethport_can_be_up(ethport)) bfa_fsm_send_event(ethport, ETHPORT_E_UP); } }

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void bna_ethport_cb_rx_stopped(struct bna_ethport *ethport) { int ethport_up = ethport_is_up(ethport); ethport->rx_started_count--; if (ethport->rx_started_count == 0) { ethport->flags &= ~BNA_ETHPORT_F_RX_STARTED; if (ethport_up) bfa_fsm_send_event(ethport, ETHPORT_E_DOWN); } }

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/* ENET */ #define bna_enet_chld_start(enet) \ do { \ enum bna_tx_type tx_type = \ ((enet)->type == BNA_ENET_T_REGULAR) ? \ BNA_TX_T_REGULAR : BNA_TX_T_LOOPBACK; \ enum bna_rx_type rx_type = \ ((enet)->type == BNA_ENET_T_REGULAR) ? \ BNA_RX_T_REGULAR : BNA_RX_T_LOOPBACK; \ bna_ethport_start(&(enet)->bna->ethport); \ bna_tx_mod_start(&(enet)->bna->tx_mod, tx_type); \ bna_rx_mod_start(&(enet)->bna->rx_mod, rx_type); \ } while (0) #define bna_enet_chld_stop(enet) \ do { \ enum bna_tx_type tx_type = \ ((enet)->type == BNA_ENET_T_REGULAR) ? \ BNA_TX_T_REGULAR : BNA_TX_T_LOOPBACK; \ enum bna_rx_type rx_type = \ ((enet)->type == BNA_ENET_T_REGULAR) ? \ BNA_RX_T_REGULAR : BNA_RX_T_LOOPBACK; \ bfa_wc_init(&(enet)->chld_stop_wc, bna_enet_cb_chld_stopped, (enet));\ bfa_wc_up(&(enet)->chld_stop_wc); \ bna_ethport_stop(&(enet)->bna->ethport); \ bfa_wc_up(&(enet)->chld_stop_wc); \ bna_tx_mod_stop(&(enet)->bna->tx_mod, tx_type); \ bfa_wc_up(&(enet)->chld_stop_wc); \ bna_rx_mod_stop(&(enet)->bna->rx_mod, rx_type); \ bfa_wc_wait(&(enet)->chld_stop_wc); \ } while (0) #define bna_enet_chld_fail(enet) \ do { \ bna_ethport_fail(&(enet)->bna->ethport); \ bna_tx_mod_fail(&(enet)->bna->tx_mod); \ bna_rx_mod_fail(&(enet)->bna->rx_mod); \ } while (0) #define bna_enet_rx_start(enet) \ do { \ enum bna_rx_type rx_type = \ ((enet)->type == BNA_ENET_T_REGULAR) ? \ BNA_RX_T_REGULAR : BNA_RX_T_LOOPBACK; \ bna_rx_mod_start(&(enet)->bna->rx_mod, rx_type); \ } while (0) #define bna_enet_rx_stop(enet) \ do { \ enum bna_rx_type rx_type = \ ((enet)->type == BNA_ENET_T_REGULAR) ? \ BNA_RX_T_REGULAR : BNA_RX_T_LOOPBACK; \ bfa_wc_init(&(enet)->chld_stop_wc, bna_enet_cb_chld_stopped, (enet));\ bfa_wc_up(&(enet)->chld_stop_wc); \ bna_rx_mod_stop(&(enet)->bna->rx_mod, rx_type); \ bfa_wc_wait(&(enet)->chld_stop_wc); \ } while (0) #define call_enet_stop_cbfn(enet) \ do { \ if ((enet)->stop_cbfn) { \ void (*cbfn)(void *); \ void *cbarg; \ cbfn = (enet)->stop_cbfn; \ cbarg = (enet)->stop_cbarg; \ (enet)->stop_cbfn = NULL; \ (enet)->stop_cbarg = NULL; \ cbfn(cbarg); \ } \ } while (0) #define call_enet_mtu_cbfn(enet) \ do { \ if ((enet)->mtu_cbfn) { \ void (*cbfn)(struct bnad *); \ cbfn = (enet)->mtu_cbfn; \ (enet)->mtu_cbfn = NULL; \ cbfn((enet)->bna->bnad); \ } \ } while (0) static void bna_enet_cb_chld_stopped(void *arg); static void bna_bfi_pause_set(struct bna_enet *enet); bfa_fsm_state_decl(bna_enet, stopped, struct bna_enet, enum bna_enet_event); bfa_fsm_state_decl(bna_enet, pause_init_wait, struct bna_enet, enum bna_enet_event); bfa_fsm_state_decl(bna_enet, last_resp_wait, struct bna_enet, enum bna_enet_event); bfa_fsm_state_decl(bna_enet, started, struct bna_enet, enum bna_enet_event); bfa_fsm_state_decl(bna_enet, cfg_wait, struct bna_enet, enum bna_enet_event); bfa_fsm_state_decl(bna_enet, cfg_stop_wait, struct bna_enet, enum bna_enet_event); bfa_fsm_state_decl(bna_enet, chld_stop_wait, struct bna_enet, enum bna_enet_event);
static void bna_enet_sm_stopped_entry(struct bna_enet *enet) { call_enet_mtu_cbfn(enet); call_enet_stop_cbfn(enet); }

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static void bna_enet_sm_stopped(struct bna_enet *enet, enum bna_enet_event event) { switch (event) { case ENET_E_START: bfa_fsm_set_state(enet, bna_enet_sm_pause_init_wait); break; case ENET_E_STOP: call_enet_stop_cbfn(enet); break; case ENET_E_FAIL: /* No-op */ break; case ENET_E_PAUSE_CFG: break; case ENET_E_MTU_CFG: call_enet_mtu_cbfn(enet); break; case ENET_E_CHLD_STOPPED: /** * This event is received due to Ethport, Tx and Rx objects * failing */ /* No-op */ break; default: bfa_sm_fault(event); } }

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static void bna_enet_sm_pause_init_wait_entry(struct bna_enet *enet) { bna_bfi_pause_set(enet); }

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static void bna_enet_sm_pause_init_wait(struct bna_enet *enet, enum bna_enet_event event) { switch (event) { case ENET_E_STOP: enet->flags &= ~BNA_ENET_F_PAUSE_CHANGED; bfa_fsm_set_state(enet, bna_enet_sm_last_resp_wait); break; case ENET_E_FAIL: enet->flags &= ~BNA_ENET_F_PAUSE_CHANGED; bfa_fsm_set_state(enet, bna_enet_sm_stopped); break; case ENET_E_PAUSE_CFG: enet->flags |= BNA_ENET_F_PAUSE_CHANGED; break; case ENET_E_MTU_CFG: /* No-op */ break; case ENET_E_FWRESP_PAUSE: if (enet->flags & BNA_ENET_F_PAUSE_CHANGED) { enet->flags &= ~BNA_ENET_F_PAUSE_CHANGED; bna_bfi_pause_set(enet); } else { bfa_fsm_set_state(enet, bna_enet_sm_started); bna_enet_chld_start(enet); } break; default: bfa_sm_fault(event); } }

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static void bna_enet_sm_last_resp_wait_entry(struct bna_enet *enet) { enet->flags &= ~BNA_ENET_F_PAUSE_CHANGED; }

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static void bna_enet_sm_last_resp_wait(struct bna_enet *enet, enum bna_enet_event event) { switch (event) { case ENET_E_FAIL: case ENET_E_FWRESP_PAUSE: bfa_fsm_set_state(enet, bna_enet_sm_stopped); break; default: bfa_sm_fault(event); } }

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static void bna_enet_sm_started_entry(struct bna_enet *enet) { /** * NOTE: Do not call bna_enet_chld_start() here, since it will be * inadvertently called during cfg_wait->started transition as well */ call_enet_mtu_cbfn(enet); }

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static void bna_enet_sm_started(struct bna_enet *enet, enum bna_enet_event event) { switch (event) { case ENET_E_STOP: bfa_fsm_set_state(enet, bna_enet_sm_chld_stop_wait); break; case ENET_E_FAIL: bfa_fsm_set_state(enet, bna_enet_sm_stopped); bna_enet_chld_fail(enet); break; case ENET_E_PAUSE_CFG: bfa_fsm_set_state(enet, bna_enet_sm_cfg_wait); bna_bfi_pause_set(enet); break; case ENET_E_MTU_CFG: bfa_fsm_set_state(enet, bna_enet_sm_cfg_wait); bna_enet_rx_stop(enet); break; default: bfa_sm_fault(event); } }

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static void bna_enet_sm_cfg_wait_entry(struct bna_enet *enet) { }

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static void bna_enet_sm_cfg_wait(struct bna_enet *enet, enum bna_enet_event event) { switch (event) { case ENET_E_STOP: enet->flags &= ~BNA_ENET_F_PAUSE_CHANGED; enet->flags &= ~BNA_ENET_F_MTU_CHANGED; bfa_fsm_set_state(enet, bna_enet_sm_cfg_stop_wait); break; case ENET_E_FAIL: enet->flags &= ~BNA_ENET_F_PAUSE_CHANGED; enet->flags &= ~BNA_ENET_F_MTU_CHANGED; bfa_fsm_set_state(enet, bna_enet_sm_stopped); bna_enet_chld_fail(enet); break; case ENET_E_PAUSE_CFG: enet->flags |= BNA_ENET_F_PAUSE_CHANGED; break; case ENET_E_MTU_CFG: enet->flags |= BNA_ENET_F_MTU_CHANGED; break; case ENET_E_CHLD_STOPPED: bna_enet_rx_start(enet); /* Fall through */ case ENET_E_FWRESP_PAUSE: if (enet->flags & BNA_ENET_F_PAUSE_CHANGED) { enet->flags &= ~BNA_ENET_F_PAUSE_CHANGED; bna_bfi_pause_set(enet); } else if (enet->flags & BNA_ENET_F_MTU_CHANGED) { enet->flags &= ~BNA_ENET_F_MTU_CHANGED; bna_enet_rx_stop(enet); } else { bfa_fsm_set_state(enet, bna_enet_sm_started); } break; default: bfa_sm_fault(event); } }

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static void bna_enet_sm_cfg_stop_wait_entry(struct bna_enet *enet) { enet->flags &= ~BNA_ENET_F_PAUSE_CHANGED; enet->flags &= ~BNA_ENET_F_MTU_CHANGED; }

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static void bna_enet_sm_cfg_stop_wait(struct bna_enet *enet, enum bna_enet_event event) { switch (event) { case ENET_E_FAIL: bfa_fsm_set_state(enet, bna_enet_sm_stopped); bna_enet_chld_fail(enet); break; case ENET_E_FWRESP_PAUSE: case ENET_E_CHLD_STOPPED: bfa_fsm_set_state(enet, bna_enet_sm_chld_stop_wait); break; default: bfa_sm_fault(event); } }

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static void bna_enet_sm_chld_stop_wait_entry(struct bna_enet *enet) { bna_enet_chld_stop(enet); }

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static void bna_enet_sm_chld_stop_wait(struct bna_enet *enet, enum bna_enet_event event) { switch (event) { case ENET_E_FAIL: bfa_fsm_set_state(enet, bna_enet_sm_stopped); bna_enet_chld_fail(enet); break; case ENET_E_CHLD_STOPPED: bfa_fsm_set_state(enet, bna_enet_sm_stopped); break; default: bfa_sm_fault(event); } }

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static void bna_bfi_pause_set(struct bna_enet *enet) { struct bfi_enet_set_pause_req *pause_req = &enet->pause_req; bfi_msgq_mhdr_set(pause_req->mh, BFI_MC_ENET, BFI_ENET_H2I_SET_PAUSE_REQ, 0, 0); pause_req->mh.num_entries = htons( bfi_msgq_num_cmd_entries(sizeof(struct bfi_enet_set_pause_req))); pause_req->tx_pause = enet->pause_config.tx_pause; pause_req->rx_pause = enet->pause_config.rx_pause; bfa_msgq_cmd_set(&enet->msgq_cmd, NULL, NULL, sizeof(struct bfi_enet_set_pause_req), &pause_req->mh); bfa_msgq_cmd_post(&enet->bna->msgq, &enet->msgq_cmd); }

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static void bna_enet_cb_chld_stopped(void *arg) { struct bna_enet *enet = (struct bna_enet *)arg; bfa_fsm_send_event(enet, ENET_E_CHLD_STOPPED); }

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static void bna_enet_init(struct bna_enet *enet, struct bna *bna) { enet->bna = bna; enet->flags = 0; enet->mtu = 0; enet->type = BNA_ENET_T_REGULAR; enet->stop_cbfn = NULL; enet->stop_cbarg = NULL; enet->mtu_cbfn = NULL; bfa_fsm_set_state(enet, bna_enet_sm_stopped); }

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static void bna_enet_uninit(struct bna_enet *enet) { enet->flags = 0; enet->bna = NULL; }

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static void bna_enet_start(struct bna_enet *enet) { enet->flags |= BNA_ENET_F_IOCETH_READY; if (enet->flags & BNA_ENET_F_ENABLED) bfa_fsm_send_event(enet, ENET_E_START); }

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static void bna_ioceth_cb_enet_stopped(void *arg) { struct bna_ioceth *ioceth = (struct bna_ioceth *)arg; bfa_fsm_send_event(ioceth, IOCETH_E_ENET_STOPPED); }

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static void bna_enet_stop(struct bna_enet *enet) { enet->stop_cbfn = bna_ioceth_cb_enet_stopped; enet->stop_cbarg = &enet->bna->ioceth; enet->flags &= ~BNA_ENET_F_IOCETH_READY; bfa_fsm_send_event(enet, ENET_E_STOP); }

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static void bna_enet_fail(struct bna_enet *enet) { enet->flags &= ~BNA_ENET_F_IOCETH_READY; bfa_fsm_send_event(enet, ENET_E_FAIL); }

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void bna_enet_cb_tx_stopped(struct bna_enet *enet) { bfa_wc_down(&enet->chld_stop_wc); }

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void bna_enet_cb_rx_stopped(struct bna_enet *enet) { bfa_wc_down(&enet->chld_stop_wc); }

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int bna_enet_mtu_get(struct bna_enet *enet) { return enet->mtu; }

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void bna_enet_enable(struct bna_enet *enet) { if (enet->fsm != (bfa_sm_t)bna_enet_sm_stopped) return; enet->flags |= BNA_ENET_F_ENABLED; if (enet->flags & BNA_ENET_F_IOCETH_READY) bfa_fsm_send_event(enet, ENET_E_START); }

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void bna_enet_disable(struct bna_enet *enet, enum bna_cleanup_type type, void (*cbfn)(void *)) { if (type == BNA_SOFT_CLEANUP) { (*cbfn)(enet->bna->bnad); return; } enet->stop_cbfn = cbfn; enet->stop_cbarg = enet->bna->bnad; enet->flags &= ~BNA_ENET_F_ENABLED; bfa_fsm_send_event(enet, ENET_E_STOP); }

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void bna_enet_pause_config(struct bna_enet *enet, struct bna_pause_config *pause_config) { enet->pause_config = *pause_config; bfa_fsm_send_event(enet, ENET_E_PAUSE_CFG); }

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void bna_enet_mtu_set(struct bna_enet *enet, int mtu, void (*cbfn)(struct bnad *)) { enet->mtu = mtu; enet->mtu_cbfn = cbfn; bfa_fsm_send_event(enet, ENET_E_MTU_CFG); }

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void bna_enet_perm_mac_get(struct bna_enet *enet, u8 *mac) { bfa_nw_ioc_get_mac(&enet->bna->ioceth.ioc, mac); }

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/* IOCETH */ #define enable_mbox_intr(_ioceth) \ do { \ u32 intr_status; \ bna_intr_status_get((_ioceth)->bna, intr_status); \ bnad_cb_mbox_intr_enable((_ioceth)->bna->bnad); \ bna_mbox_intr_enable((_ioceth)->bna); \ } while (0) #define disable_mbox_intr(_ioceth) \ do { \ bna_mbox_intr_disable((_ioceth)->bna); \ bnad_cb_mbox_intr_disable((_ioceth)->bna->bnad); \ } while (0) #define call_ioceth_stop_cbfn(_ioceth) \ do { \ if ((_ioceth)->stop_cbfn) { \ void (*cbfn)(struct bnad *); \ struct bnad *cbarg; \ cbfn = (_ioceth)->stop_cbfn; \ cbarg = (_ioceth)->stop_cbarg; \ (_ioceth)->stop_cbfn = NULL; \ (_ioceth)->stop_cbarg = NULL; \ cbfn(cbarg); \ } \ } while (0) #define bna_stats_mod_uninit(_stats_mod) \ do { \ } while (0) #define bna_stats_mod_start(_stats_mod) \ do { \ (_stats_mod)->ioc_ready = true; \ } while (0) #define bna_stats_mod_stop(_stats_mod) \ do { \ (_stats_mod)->ioc_ready = false; \ } while (0) #define bna_stats_mod_fail(_stats_mod) \ do { \ (_stats_mod)->ioc_ready = false; \ (_stats_mod)->stats_get_busy = false; \ (_stats_mod)->stats_clr_busy = false; \ } while (0) static void bna_bfi_attr_get(struct bna_ioceth *ioceth); bfa_fsm_state_decl(bna_ioceth, stopped, struct bna_ioceth, enum bna_ioceth_event); bfa_fsm_state_decl(bna_ioceth, ioc_ready_wait, struct bna_ioceth, enum bna_ioceth_event); bfa_fsm_state_decl(bna_ioceth, enet_attr_wait, struct bna_ioceth, enum bna_ioceth_event); bfa_fsm_state_decl(bna_ioceth, ready, struct bna_ioceth, enum bna_ioceth_event); bfa_fsm_state_decl(bna_ioceth, last_resp_wait, struct bna_ioceth, enum bna_ioceth_event); bfa_fsm_state_decl(bna_ioceth, enet_stop_wait, struct bna_ioceth, enum bna_ioceth_event); bfa_fsm_state_decl(bna_ioceth, ioc_disable_wait, struct bna_ioceth, enum bna_ioceth_event); bfa_fsm_state_decl(bna_ioceth, failed, struct bna_ioceth, enum bna_ioceth_event);
static void bna_ioceth_sm_stopped_entry(struct bna_ioceth *ioceth) { call_ioceth_stop_cbfn(ioceth); }

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static void bna_ioceth_sm_stopped(struct bna_ioceth *ioceth, enum bna_ioceth_event event) { switch (event) { case IOCETH_E_ENABLE: bfa_fsm_set_state(ioceth, bna_ioceth_sm_ioc_ready_wait); bfa_nw_ioc_enable(&ioceth->ioc); break; case IOCETH_E_DISABLE: bfa_fsm_set_state(ioceth, bna_ioceth_sm_stopped); break; case IOCETH_E_IOC_RESET: enable_mbox_intr(ioceth); break; case IOCETH_E_IOC_FAILED: disable_mbox_intr(ioceth); bfa_fsm_set_state(ioceth, bna_ioceth_sm_failed); break; default: bfa_sm_fault(event); } }

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static void bna_ioceth_sm_ioc_ready_wait_entry(struct bna_ioceth *ioceth) { /** * Do not call bfa_nw_ioc_enable() here. It must be called in the * previous state due to failed -> ioc_ready_wait transition. */ }

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static void bna_ioceth_sm_ioc_ready_wait(struct bna_ioceth *ioceth, enum bna_ioceth_event event) { switch (event) { case IOCETH_E_DISABLE: bfa_fsm_set_state(ioceth, bna_ioceth_sm_ioc_disable_wait); bfa_nw_ioc_disable(&ioceth->ioc); break; case IOCETH_E_IOC_RESET: enable_mbox_intr(ioceth); break; case IOCETH_E_IOC_FAILED: disable_mbox_intr(ioceth); bfa_fsm_set_state(ioceth, bna_ioceth_sm_failed); break; case IOCETH_E_IOC_READY: bfa_fsm_set_state(ioceth, bna_ioceth_sm_enet_attr_wait); break; default: bfa_sm_fault(event); } }

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static void bna_ioceth_sm_enet_attr_wait_entry(struct bna_ioceth *ioceth) { bna_bfi_attr_get(ioceth); }

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static void bna_ioceth_sm_enet_attr_wait(struct bna_ioceth *ioceth, enum bna_ioceth_event event) { switch (event) { case IOCETH_E_DISABLE: bfa_fsm_set_state(ioceth, bna_ioceth_sm_last_resp_wait); break; case IOCETH_E_IOC_FAILED: disable_mbox_intr(ioceth); bfa_fsm_set_state(ioceth, bna_ioceth_sm_failed); break; case IOCETH_E_ENET_ATTR_RESP: bfa_fsm_set_state(ioceth, bna_ioceth_sm_ready); break; default: bfa_sm_fault(event); } }

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static void bna_ioceth_sm_ready_entry(struct bna_ioceth *ioceth) { bna_enet_start(&ioceth->bna->enet); bna_stats_mod_start(&ioceth->bna->stats_mod); bnad_cb_ioceth_ready(ioceth->bna->bnad); }

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Total40100.00%1100.00%


static void bna_ioceth_sm_ready(struct bna_ioceth *ioceth, enum bna_ioceth_event event) { switch (event) { case IOCETH_E_DISABLE: bfa_fsm_set_state(ioceth, bna_ioceth_sm_enet_stop_wait); break; case IOCETH_E_IOC_FAILED: disable_mbox_intr(ioceth); bna_enet_fail(&ioceth->bna->enet); bna_stats_mod_fail(&ioceth->bna->stats_mod); bfa_fsm_set_state(ioceth, bna_ioceth_sm_failed); break; default: bfa_sm_fault(event); } }

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static void bna_ioceth_sm_last_resp_wait_entry(struct bna_ioceth *ioceth) { }

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Total10100.00%1100.00%


static void bna_ioceth_sm_last_resp_wait(struct bna_ioceth *ioceth, enum bna_ioceth_event event) { switch (event) { case IOCETH_E_IOC_FAILED: bfa_fsm_set_state(ioceth, bna_ioceth_sm_ioc_disable_wait); disable_mbox_intr(ioceth); bfa_nw_ioc_disable(&ioceth->ioc); break; case IOCETH_E_ENET_ATTR_RESP: bfa_fsm_set_state(ioceth, bna_ioceth_sm_ioc_disable_wait); bfa_nw_ioc_disable(&ioceth->ioc); break; default: bfa_sm_fault(event); } }

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static void bna_ioceth_sm_enet_stop_wait_entry(struct bna_ioceth *ioceth) { bna_stats_mod_stop(&ioceth->bna->stats_mod); bna_enet_stop(&ioceth->bna->enet); }

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static void bna_ioceth_sm_enet_stop_wait(struct bna_ioceth *ioceth, enum bna_ioceth_event event) { switch (event) { case IOCETH_E_IOC_FAILED: bfa_fsm_set_state(ioceth, bna_ioceth_sm_ioc_disable_wait); disable_mbox_intr(ioceth); bna_enet_fail(&ioceth->bna->enet); bna_stats_mod_fail(&ioceth->bna->stats_mod); bfa_nw_ioc_disable(&ioceth->ioc); break; case IOCETH_E_ENET_STOPPED: bfa_fsm_set_state(ioceth, bna_ioceth_sm_ioc_disable_wait); bfa_nw_ioc_disable(&ioceth->ioc); break; default: bfa_sm_fault(event); } }

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static void bna_ioceth_sm_ioc_disable_wait_entry(struct bna_ioceth *ioceth) { }

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static void bna_ioceth_sm_ioc_disable_wait(struct bna_ioceth *ioceth, enum bna_ioceth_event event) { switch (event) { case IOCETH_E_IOC_DISABLED: disable_mbox_intr(ioceth); bfa_fsm_set_state(ioceth, bna_ioceth_sm_stopped); break; case IOCETH_E_ENET_STOPPED: /* This event is received due to enet failing */ /* No-op */ break; default: bfa_sm_fault(event); } }

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static void bna_ioceth_sm_failed_entry(struct bna_ioceth *ioceth) { bnad_cb_ioceth_failed(ioceth->bna->bnad); }

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static void bna_ioceth_sm_failed(struct bna_ioceth *ioceth, enum bna_ioceth_event event) { switch (event) { case IOCETH_E_DISABLE: bfa_fsm_set_state(ioceth, bna_ioceth_sm_ioc_disable_wait); bfa_nw_ioc_disable(&ioceth->ioc); break; case IOCETH_E_IOC_RESET: enable_mbox_intr(ioceth); bfa_fsm_set_state(ioceth, bna_ioceth_sm_ioc_ready_wait); break; case IOCETH_E_IOC_FAILED: break; default: bfa_sm_fault(event); } }

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static void bna_bfi_attr_get(struct bna_ioceth *ioceth) { struct bfi_enet_attr_req *attr_req = &ioceth->attr_req; bfi_msgq_mhdr_set(attr_req->mh, BFI_MC_ENET, BFI_ENET_H2I_GET_ATTR_REQ, 0, 0); attr_req->mh.num_entries = htons( bfi_msgq_num_cmd_entries(sizeof(struct bfi_enet_attr_req))); bfa_msgq_cmd_set(&ioceth->msgq_cmd, NULL, NULL, sizeof(struct bfi_enet_attr_req), &attr_req->mh); bfa_msgq_cmd_post(&ioceth->bna->msgq, &ioceth->msgq_cmd); }

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/* IOC callback functions */
static void bna_cb_ioceth_enable(void *arg, enum bfa_status error) { struct bna_ioceth *ioceth = (struct bna_ioceth *)arg; if (error) bfa_fsm_send_event(ioceth, IOCETH_E_IOC_FAILED); else bfa_fsm_send_event(ioceth, IOCETH_E_IOC_READY); }

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static void bna_cb_ioceth_disable(void *arg) { struct bna_ioceth *ioceth = (struct bna_ioceth *)arg; bfa_fsm_send_event(ioceth, IOCETH_E_IOC_DISABLED); }

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static void bna_cb_ioceth_hbfail(void *arg) { struct bna_ioceth *ioceth = (struct bna_ioceth *)arg; bfa_fsm_send_event(ioceth, IOCETH_E_IOC_FAILED); }

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static void bna_cb_ioceth_reset(void *arg) { struct bna_ioceth *ioceth = (struct bna_ioceth *)arg; bfa_fsm_send_event(ioceth, IOCETH_E_IOC_RESET); }

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static struct bfa_ioc_cbfn bna_ioceth_cbfn = { .enable_cbfn = bna_cb_ioceth_enable, .disable_cbfn = bna_cb_ioceth_disable, .hbfail_cbfn = bna_cb_ioceth_hbfail, .reset_cbfn = bna_cb_ioceth_reset };
static void bna_attr_init(struct bna_ioceth *ioceth) { ioceth->attr.num_txq = BFI_ENET_DEF_TXQ; ioceth->attr.num_rxp = BFI_ENET_DEF_RXP; ioceth->attr.num_ucmac = BFI_ENET_DEF_UCAM; ioceth->attr.num_mcmac = BFI_ENET_MAX_MCAM; ioceth->attr.max_rit_size = BFI_ENET_DEF_RITSZ; ioceth->attr.fw_query_complete = false; }

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static void bna_ioceth_init(struct bna_ioceth *ioceth, struct bna *bna, struct bna_res_info *res_info) { u64 dma; u8 *kva; ioceth->bna = bna; /** * Attach IOC and claim: * 1. DMA memory for IOC attributes * 2. Kernel memory for FW trace */ bfa_nw_ioc_attach(&ioceth->ioc, ioceth, &bna_ioceth_cbfn); bfa_nw_ioc_pci_init(&ioceth->ioc, &bna->pcidev, BFI_PCIFN_CLASS_ETH); BNA_GET_DMA_ADDR( &res_info[BNA_RES_MEM_T_ATTR].res_u.mem_info.mdl[0].dma, dma); kva = res_info[BNA_RES_MEM_T_ATTR].res_u.mem_info.mdl[0].kva; bfa_nw_ioc_mem_claim(&ioceth->ioc, kva, dma); kva = res_info[BNA_RES_MEM_T_FWTRC].res_u.mem_info.mdl[0].kva; bfa_nw_ioc_debug_memclaim(&ioceth->ioc, kva); /** * Attach common modules (Diag, SFP, CEE, Port) and claim respective * DMA memory. */ BNA_GET_DMA_ADDR( &res_info[BNA_RES_MEM_T_COM].res_u.mem_info.mdl[0].dma, dma); kva = res_info[BNA_RES_MEM_T_COM].res_u.mem_info.mdl[0].kva; bfa_nw_cee_attach(&bna->cee, &ioceth->ioc, bna); bfa_nw_cee_mem_claim(&bna->cee, kva, dma); kva += bfa_nw_cee_meminfo(); dma += bfa_nw_cee_meminfo(); bfa_nw_flash_attach(&bna->flash, &ioceth->ioc, bna); bfa_nw_flash_memclaim(&bna->flash, kva, dma); kva += bfa_nw_flash_meminfo(); dma += bfa_nw_flash_meminfo(); bfa_msgq_attach(&bna->msgq, &ioceth->ioc); bfa_msgq_memclaim(&bna->msgq, kva, dma); bfa_msgq_regisr(&bna->msgq, BFI_MC_ENET, bna_msgq_rsp_handler, bna); kva += bfa_msgq_meminfo(); dma += bfa_msgq_meminfo(); ioceth->stop_cbfn = NULL; ioceth->stop_cbarg = NULL; bna_attr_init(ioceth); bfa_fsm_set_state(ioceth, bna_ioceth_sm_stopped); }

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Rasesh Mody28485.80%250.00%
Krishna Gudipati4714.20%250.00%
Total331100.00%4100.00%


static void bna_ioceth_uninit(struct bna_ioceth *ioceth) { bfa_nw_ioc_detach(&ioceth->ioc); ioceth->bna = NULL; }

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void bna_ioceth_enable(struct bna_ioceth *ioceth) { if (ioceth->fsm == (bfa_fsm_t)bna_ioceth_sm_ready) { bnad_cb_ioceth_ready(ioceth->bna->bnad); return; } if (ioceth->fsm == (bfa_fsm_t)bna_ioceth_sm_stopped) bfa_fsm_send_event(ioceth, IOCETH_E_ENABLE); }

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void bna_ioceth_disable(struct bna_ioceth *ioceth, enum bna_cleanup_type type) { if (type == BNA_SOFT_CLEANUP) { bnad_cb_ioceth_disabled(ioceth->bna->bnad); return; } ioceth->stop_cbfn = bnad_cb_ioceth_disabled; ioceth->stop_cbarg = ioceth->bna->bnad; bfa_fsm_send_event(ioceth, IOCETH_E_DISABLE); }

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static void bna_ucam_mod_init(struct bna_ucam_mod *ucam_mod, struct bna *bna, struct bna_res_info *res_info) { int i; ucam_mod->ucmac = (struct bna_mac *) res_info[BNA_MOD_RES_MEM_T_UCMAC_ARRAY].res_u.mem_info.mdl[0].kva; INIT_LIST_HEAD(&ucam_mod->free_q); for (i = 0; i < bna->ioceth.attr.num_ucmac; i++) list_add_tail(&ucam_mod->ucmac[i].qe, &ucam_mod->free_q); /* A separate queue to allow synchronous setting of a list of MACs */ INIT_LIST_HEAD(&ucam_mod->del_q); for (i = i; i < (bna->ioceth.attr.num_ucmac * 2); i++) list_add_tail(&ucam_mod->ucmac[i].qe, &ucam_mod->del_q); ucam_mod->bna = bna; }

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static void bna_ucam_mod_uninit(struct bna_ucam_mod *ucam_mod) { ucam_mod->bna = NULL; }

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static void bna_mcam_mod_init(struct bna_mcam_mod *mcam_mod, struct bna *bna, struct bna_res_info *res_info) { int i; mcam_mod->mcmac = (struct bna_mac *) res_info[BNA_MOD_RES_MEM_T_MCMAC_ARRAY].res_u.mem_info.mdl[0].kva; INIT_LIST_HEAD(&mcam_mod->free_q); for (i = 0; i < bna->ioceth.attr.num_mcmac; i++) list_add_tail(&mcam_mod->mcmac[i].qe, &mcam_mod->free_q); mcam_mod->mchandle = (struct bna_mcam_handle *) res_info[BNA_MOD_RES_MEM_T_MCHANDLE_ARRAY].res_u.mem_info.mdl[0].kva; INIT_LIST_HEAD(&mcam_mod->free_handle_q); for (i = 0; i < bna->ioceth.attr.num_mcmac; i++) list_add_tail(&mcam_mod->mchandle[i].qe, &mcam_mod->free_handle_q); /* A separate queue to allow synchronous setting of a list of MACs */ INIT_LIST_HEAD(&mcam_mod->del_q); for (i = i; i < (bna->ioceth.attr.num_mcmac * 2); i++) list_add_tail(&mcam_mod->mcmac[i].qe, &mcam_mod->del_q); mcam_mod->bna = bna; }

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static void bna_mcam_mod_uninit(struct bna_mcam_mod *mcam_mod) { mcam_mod->bna = NULL; }

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static void bna_bfi_stats_get(struct bna *bna) { struct bfi_enet_stats_req *stats_req = &bna->stats_mod.stats_get; bna->stats_mod.stats_get_busy = true; bfi_msgq_mhdr_set(stats_req->mh, BFI_MC_ENET, BFI_ENET_H2I_STATS_GET_REQ, 0, 0); stats_req->mh.num_entries = htons( bfi_msgq_num_cmd_entries(sizeof(struct bfi_enet_stats_req))); stats_req->stats_mask = htons(BFI_ENET_STATS_ALL); stats_req->tx_enet_mask = htonl(bna->tx_mod.rid_mask); stats_req->rx_enet_mask = htonl(bna->rx_mod.rid_mask); stats_req->host_buffer.a32.addr_hi = bna->stats.hw_stats_dma.msb; stats_req->host_buffer.a32.addr_lo = bna->stats.hw_stats_dma.lsb; bfa_msgq_cmd_set(&bna->stats_mod.stats_get_cmd, NULL, NULL, sizeof(struct bfi_enet_stats_req), &stats_req->mh); bfa_msgq_cmd_post(&bna->msgq, &bna->stats_mod.stats_get_cmd); }

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void bna_res_req(struct bna_res_info *res_info) { /* DMA memory for COMMON_MODULE */ res_info[BNA_RES_MEM_T_COM].res_type = BNA_RES_T_MEM; res_info[BNA_RES_MEM_T_COM].res_u.mem_info.mem_type = BNA_MEM_T_DMA; res_info[BNA_RES_MEM_T_COM].res_u.mem_info.num = 1; res_info[BNA_RES_MEM_T_COM].res_u.mem_info.len = ALIGN( (bfa_nw_cee_meminfo() + bfa_nw_flash_meminfo() + bfa_msgq_meminfo()), PAGE_SIZE); /* DMA memory for retrieving IOC attributes */ res_info[BNA_RES_MEM_T_ATTR].res_type = BNA_RES_T_MEM; res_info[BNA_RES_MEM_T_ATTR].res_u.mem_info.mem_type = BNA_MEM_T_DMA; res_info[BNA_RES_MEM_T_ATTR].res_u.mem_info.num = 1; res_info[BNA_RES_MEM_T_ATTR].res_u.mem_info.len = ALIGN(bfa_nw_ioc_meminfo(), PAGE_SIZE); /* Virtual memory for retreiving fw_trc */ res_info[BNA_RES_MEM_T_FWTRC].res_type = BNA_RES_T_MEM; res_info[BNA_RES_MEM_T_FWTRC].res_u.mem_info.mem_type = BNA_MEM_T_KVA; res_info[BNA_RES_MEM_T_FWTRC].res_u.mem_info.num = 1; res_info[BNA_RES_MEM_T_FWTRC].res_u.mem_info.len = BNA_DBG_FWTRC_LEN; /* DMA memory for retreiving stats */ res_info[BNA_RES_MEM_T_STATS].res_type = BNA_RES_T_MEM; res_info[BNA_RES_MEM_T_STATS].res_u.mem_info.mem_type = BNA_MEM_T_DMA; res_info[BNA_RES_MEM_T_STATS].res_u.mem_info.num = 1; res_info[BNA_RES_MEM_T_STATS].res_u.mem_info.len = ALIGN(sizeof(struct bfi_enet_stats), PAGE_SIZE); }

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Rasesh Mody23097.87%133.33%
Krishna Gudipati52.13%266.67%
Total235100.00%3100.00%


void bna_mod_res_req(struct bna *bna, struct bna_res_info *res_info) { struct bna_attr *attr = &bna->ioceth.attr; /* Virtual memory for Tx objects - stored by Tx module */ res_info[BNA_MOD_RES_MEM_T_TX_ARRAY].res_type = BNA_RES_T_MEM; res_info[BNA_MOD_RES_MEM_T_TX_ARRAY].res_u.mem_info.mem_type = BNA_MEM_T_KVA; res_info[BNA_MOD_RES_MEM_T_TX_ARRAY].res_u.mem_info.num = 1; res_info[BNA_MOD_RES_MEM_T_TX_ARRAY].res_u.mem_info.len = attr->num_txq * sizeof(struct bna_tx); /* Virtual memory for TxQ - stored by Tx module */ res_info[BNA_MOD_RES_MEM_T_TXQ_ARRAY].res_type = BNA_RES_T_MEM; res_info[BNA_MOD_RES_MEM_T_TXQ_ARRAY].res_u.mem_info.mem_type = BNA_MEM_T_KVA; res_info[BNA_MOD_RES_MEM_T_TXQ_ARRAY].res_u.mem_info.num = 1; res_info[BNA_MOD_RES_MEM_T_TXQ_ARRAY].res_u.mem_info.len = attr->num_txq * sizeof(struct bna_txq); /* Virtual memory for Rx objects - stored by Rx module */ res_info[BNA_MOD_RES_MEM_T_RX_ARRAY].res_type = BNA_RES_T_MEM; res_info[BNA_MOD_RES_MEM_T_RX_ARRAY].res_u.mem_info.mem_type = BNA_MEM_T_KVA; res_info[BNA_MOD_RES_MEM_T_RX_ARRAY].res_u.mem_info.num = 1; res_info[BNA_MOD_RES_MEM_T_RX_ARRAY].res_u.mem_info.len = attr->num_rxp * sizeof(struct bna_rx); /* Virtual memory for RxPath - stored by Rx module */ res_info[BNA_MOD_RES_MEM_T_RXP_ARRAY].res_type = BNA_RES_T_MEM; res_info[BNA_MOD_RES_MEM_T_RXP_ARRAY].res_u.mem_info.mem_type = BNA_MEM_T_KVA; res_info[BNA_MOD_RES_MEM_T_RXP_ARRAY].res_u.mem_info.num = 1; res_info[BNA_MOD_RES_MEM_T_RXP_ARRAY].res_u.mem_info.len = attr->num_rxp * sizeof(struct bna_rxp); /* Virtual memory for RxQ - stored by Rx module */ res_info[BNA_MOD_RES_MEM_T_RXQ_ARRAY].res_type = BNA_RES_T_MEM; res_info[BNA_MOD_RES_MEM_T_RXQ_ARRAY].res_u.mem_info.mem_type = BNA_MEM_T_KVA; res_info[BNA_MOD_RES_MEM_T_RXQ_ARRAY].res_u.mem_info.num = 1; res_info[BNA_MOD_RES_MEM_T_RXQ_ARRAY].res_u.mem_info.len = (attr->num_rxp * 2) * sizeof(struct bna_rxq); /* Virtual memory for Unicast MAC address - stored by ucam module */ res_info[BNA_MOD_RES_MEM_T_UCMAC_ARRAY].res_type = BNA_RES_T_MEM; res_info[BNA_MOD_RES_MEM_T_UCMAC_ARRAY].res_u.mem_info.mem_type = BNA_MEM_T_KVA; res_info[BNA_MOD_RES_MEM_T_UCMAC_ARRAY].res_u.mem_info.num = 1; res_info[BNA_MOD_RES_MEM_T_UCMAC_ARRAY].res_u.mem_info.len = (attr->num_ucmac * 2) * sizeof(struct bna_mac); /* Virtual memory for Multicast MAC address - stored by mcam module */ res_info[BNA_MOD_RES_MEM_T_MCMAC_ARRAY].res_type = BNA_RES_T_MEM; res_info[BNA_MOD_RES_MEM_T_MCMAC_ARRAY].res_u.mem_info.mem_type = BNA_MEM_T_KVA; res_info[BNA_MOD_RES_MEM_T_MCMAC_ARRAY].res_u.mem_info.num = 1; res_info[BNA_MOD_RES_MEM_T_MCMAC_ARRAY].res_u.mem_info.len = (attr->num_mcmac * 2) * sizeof(struct bna_mac); /* Virtual memory for Multicast handle - stored by mcam module */ res_info[BNA_MOD_RES_MEM_T_MCHANDLE_ARRAY].res_type = BNA_RES_T_MEM; res_info[BNA_MOD_RES_MEM_T_MCHANDLE_ARRAY].res_u.mem_info.mem_type = BNA_MEM_T_KVA; res_info[BNA_MOD_RES_MEM_T_MCHANDLE_ARRAY].res_u.mem_info.num = 1; res_info[BNA_MOD_RES_MEM_T_MCHANDLE_ARRAY].res_u.mem_info.len = attr->num_mcmac * sizeof(struct bna_mcam_handle); }

Contributors

PersonTokensPropCommitsCommitProp
Rasesh Mody495100.00%2100.00%
Total495100.00%2100.00%


void bna_init(struct bna *bna, struct bnad *bnad, struct bfa_pcidev *pcidev, struct bna_res_info *res_info) { bna->bnad = bnad; bna->pcidev = *pcidev; bna->stats.hw_stats_kva = (struct bfi_enet_stats *) res_info[BNA_RES_MEM_T_STATS].res_u.mem_info.mdl[0].kva; bna->stats.hw_stats_dma.msb = res_info[BNA_RES_MEM_T_STATS].res_u.mem_info.mdl[0].dma.msb; bna->stats.hw_stats_dma.lsb = res_info[BNA_RES_MEM_T_STATS].res_u.mem_info.mdl[0].dma.lsb; bna_reg_addr_init(bna, &bna->pcidev); /* Also initializes diag, cee, sfp, phy_port, msgq */ bna_ioceth_init(&bna->ioceth, bna, res_info); bna_enet_init(&bna->enet, bna); bna_ethport_init(&bna->ethport, bna); }

Contributors

PersonTokensPropCommitsCommitProp
Rasesh Mody160100.00%1100.00%
Total160100.00%1100.00%


void bna_mod_init(struct bna *bna, struct bna_res_info *res_info) { bna_tx_mod_init(&bna->tx_mod, bna, res_info); bna_rx_mod_init(&bna->rx_mod, bna, res_info); bna_ucam_mod_init(&bna->ucam_mod, bna, res_info); bna_mcam_mod_init(&bna->mcam_mod, bna, res_info); bna->default_mode_rid = BFI_INVALID_RID; bna->promisc_rid = BFI_INVALID_RID; bna->mod_flags |= BNA_MOD_F_INIT_DONE; }

Contributors

PersonTokensPropCommitsCommitProp
Rasesh Mody81100.00%1100.00%
Total81100.00%1100.00%


void bna_uninit(struct bna *bna) { if (bna->mod_flags & BNA_MOD_F_INIT_DONE) { bna_mcam_mod_uninit(&bna->mcam_mod); bna_ucam_mod_uninit(&bna->ucam_mod); bna_rx_mod_uninit(&bna->rx_mod); bna_tx_mod_uninit(&bna->tx_mod); bna->mod_flags &= ~BNA_MOD_F_INIT_DONE; } bna_stats_mod_uninit(&bna->stats_mod); bna_ethport_uninit(&bna->ethport); bna_enet_uninit(&bna->enet); bna_ioceth_uninit(&bna->ioceth); bna->bnad = NULL; }

Contributors

PersonTokensPropCommitsCommitProp
Rasesh Mody97100.00%1100.00%
Total97100.00%1100.00%


int bna_num_txq_set(struct bna *bna, int num_txq) { if (bna->ioceth.attr.fw_query_complete && (num_txq <= bna->ioceth.attr.num_txq)) { bna->ioceth.attr.num_txq = num_txq; return BNA_CB_SUCCESS; } return BNA_CB_FAIL; }

Contributors

PersonTokensPropCommitsCommitProp
Rasesh Mody53100.00%2100.00%
Total53100.00%2100.00%


int bna_num_rxp_set(struct bna *bna, int num_rxp) { if (bna->ioceth.attr.fw_query_complete && (num_rxp <= bna->ioceth.attr.num_rxp)) { bna->ioceth.attr.num_rxp = num_rxp; return BNA_CB_SUCCESS; } return BNA_CB_FAIL; }

Contributors

PersonTokensPropCommitsCommitProp
Rasesh Mody53100.00%2100.00%
Total53100.00%2100.00%


struct bna_mac * bna_cam_mod_mac_get(struct list_head *head) { struct bna_mac *mac; mac = list_first_entry_or_null(head, struct bna_mac, qe); if (mac) list_del(&mac->qe); return mac; }

Contributors

PersonTokensPropCommitsCommitProp
Rasesh Mody2965.91%266.67%
Ivan Vecera1534.09%133.33%
Total44100.00%3100.00%


struct bna_mcam_handle * bna_mcam_mod_handle_get(struct bna_mcam_mod *mcam_mod) { struct bna_mcam_handle *handle; handle = list_first_entry_or_null(&mcam_mod->free_handle_q, struct bna_mcam_handle, qe); if (handle) list_del(&handle->qe); return handle; }

Contributors

PersonTokensPropCommitsCommitProp
Rasesh Mody3063.83%150.00%
Ivan Vecera1736.17%150.00%
Total47100.00%2100.00%


void bna_mcam_mod_handle_put(struct bna_mcam_mod *mcam_mod, struct bna_mcam_handle *handle) { list_add_tail(&handle->qe, &mcam_mod->free_handle_q); }

Contributors

PersonTokensPropCommitsCommitProp
Rasesh Mody28100.00%1100.00%
Total28100.00%1100.00%


void bna_hw_stats_get(struct bna *bna) { if (!bna->stats_mod.ioc_ready) { bnad_cb_stats_get(bna->bnad, BNA_CB_FAIL, &bna->stats); return; } if (bna->stats_mod.stats_get_busy) { bnad_cb_stats_get(bna->bnad, BNA_CB_BUSY, &bna->stats); return; } bna_bfi_stats_get(bna); }

Contributors

PersonTokensPropCommitsCommitProp
Rasesh Mody66100.00%1100.00%
Total66100.00%1100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Rasesh Mody800998.46%538.46%
Krishna Gudipati520.64%215.38%
Ivan Vecera370.45%323.08%
Fabian Frederick210.26%17.69%
Kees Cook120.15%17.69%
Ben Hutchings30.04%17.69%
Total8134100.00%13100.00%
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