/* * Copyright (c) 2005-2010 Brocade Communications Systems, Inc. * All rights reserved * www.brocade.com * * Linux driver for Brocade Fibre Channel Host Bus 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. */ #include "bfa_defs_svc.h" #include "bfa_port.h" #include "bfi.h" #include "bfa_ioc.h" BFA_TRC_FILE(CNA, PORT); #define bfa_ioc_portid(__ioc) ((__ioc)->port_id) static void bfa_port_stats_swap(struct bfa_port_s *port, union bfa_port_stats_u *stats) { u32 *dip = (u32 *) stats; u32 t0, t1; int i; for (i = 0; i < sizeof(union bfa_port_stats_u)/sizeof(u32); i += 2) { t0 = dip[i]; t1 = dip[i + 1]; #ifdef __BIGENDIAN dip[i] = be32_to_cpu(t0); dip[i + 1] = be32_to_cpu(t1); #else dip[i] = be32_to_cpu(t1); dip[i + 1] = be32_to_cpu(t0); #endif } } /* * bfa_port_enable_isr() * * * @param[in] port - Pointer to the port module * status - Return status from the f/w * * @return void */ static void bfa_port_enable_isr(struct bfa_port_s *port, bfa_status_t status) { bfa_trc(port, status); port->endis_pending = BFA_FALSE; port->endis_cbfn(port->endis_cbarg, status); } /* * bfa_port_disable_isr() * * * @param[in] port - Pointer to the port module * status - Return status from the f/w * * @return void */ static void bfa_port_disable_isr(struct bfa_port_s *port, bfa_status_t status) { bfa_trc(port, status); port->endis_pending = BFA_FALSE; port->endis_cbfn(port->endis_cbarg, status); } /* * bfa_port_get_stats_isr() * * * @param[in] port - Pointer to the Port module * status - Return status from the f/w * * @return void */ static void bfa_port_get_stats_isr(struct bfa_port_s *port, bfa_status_t status) { port->stats_status = status; port->stats_busy = BFA_FALSE; if (status == BFA_STATUS_OK) { struct bfa_timeval_s tv; memcpy(port->stats, port->stats_dma.kva, sizeof(union bfa_port_stats_u)); bfa_port_stats_swap(port, port->stats); bfa_os_gettimeofday(&tv); port->stats->fc.secs_reset = tv.tv_sec - port->stats_reset_time; } if (port->stats_cbfn) { port->stats_cbfn(port->stats_cbarg, status); port->stats_cbfn = NULL; } } /* * bfa_port_clear_stats_isr() * * * @param[in] port - Pointer to the Port module * status - Return status from the f/w * * @return void */ static void bfa_port_clear_stats_isr(struct bfa_port_s *port, bfa_status_t status) { struct bfa_timeval_s tv; port->stats_status = status; port->stats_busy = BFA_FALSE; /* * re-initialize time stamp for stats reset */ bfa_os_gettimeofday(&tv); port->stats_reset_time = tv.tv_sec; if (port->stats_cbfn) { port->stats_cbfn(port->stats_cbarg, status); port->stats_cbfn = NULL; } } /* * bfa_port_isr() * * * @param[in] Pointer to the Port module data structure. * * @return void */ static void bfa_port_isr(void *cbarg, struct bfi_mbmsg_s *m) { struct bfa_port_s *port = (struct bfa_port_s *) cbarg; union bfi_port_i2h_msg_u *i2hmsg; i2hmsg = (union bfi_port_i2h_msg_u *) m; bfa_trc(port, m->mh.msg_id); switch (m->mh.msg_id) { case BFI_PORT_I2H_ENABLE_RSP: if (port->endis_pending == BFA_FALSE) break; bfa_port_enable_isr(port, i2hmsg->enable_rsp.status); break; case BFI_PORT_I2H_DISABLE_RSP: if (port->endis_pending == BFA_FALSE) break; bfa_port_disable_isr(port, i2hmsg->disable_rsp.status); break; case BFI_PORT_I2H_GET_STATS_RSP: /* Stats busy flag is still set? (may be cmd timed out) */ if (port->stats_busy == BFA_FALSE) break; bfa_port_get_stats_isr(port, i2hmsg->getstats_rsp.status); break; case BFI_PORT_I2H_CLEAR_STATS_RSP: if (port->stats_busy == BFA_FALSE) break; bfa_port_clear_stats_isr(port, i2hmsg->clearstats_rsp.status); break; default: bfa_assert(0); } } /* * bfa_port_meminfo() * * * @param[in] void * * @return Size of DMA region */ u32 bfa_port_meminfo(void) { return BFA_ROUNDUP(sizeof(union bfa_port_stats_u), BFA_DMA_ALIGN_SZ); } /* * bfa_port_mem_claim() * * * @param[in] port Port module pointer * dma_kva Kernel Virtual Address of Port DMA Memory * dma_pa Physical Address of Port DMA Memory * * @return void */ void bfa_port_mem_claim(struct bfa_port_s *port, u8 *dma_kva, u64 dma_pa) { port->stats_dma.kva = dma_kva; port->stats_dma.pa = dma_pa; } /* * bfa_port_enable() * * Send the Port enable request to the f/w * * @param[in] Pointer to the Port module data structure. * * @return Status */ bfa_status_t bfa_port_enable(struct bfa_port_s *port, bfa_port_endis_cbfn_t cbfn, void *cbarg) { struct bfi_port_generic_req_s *m; if (bfa_ioc_is_disabled(port->ioc)) { bfa_trc(port, BFA_STATUS_IOC_DISABLED); return BFA_STATUS_IOC_DISABLED; } if (!bfa_ioc_is_operational(port->ioc)) { bfa_trc(port, BFA_STATUS_IOC_FAILURE); return BFA_STATUS_IOC_FAILURE; } if (port->endis_pending) { bfa_trc(port, BFA_STATUS_DEVBUSY); return BFA_STATUS_DEVBUSY; } m = (struct bfi_port_generic_req_s *) port->endis_mb.msg; port->msgtag++; port->endis_cbfn = cbfn; port->endis_cbarg = cbarg; port->endis_pending = BFA_TRUE; bfi_h2i_set(m->mh, BFI_MC_PORT, BFI_PORT_H2I_ENABLE_REQ, bfa_ioc_portid(port->ioc)); bfa_ioc_mbox_queue(port->ioc, &port->endis_mb); return BFA_STATUS_OK; } /* * bfa_port_disable() * * Send the Port disable request to the f/w * * @param[in] Pointer to the Port module data structure. * * @return Status */ bfa_status_t bfa_port_disable(struct bfa_port_s *port, bfa_port_endis_cbfn_t cbfn, void *cbarg) { struct bfi_port_generic_req_s *m; if (bfa_ioc_is_disabled(port->ioc)) { bfa_trc(port, BFA_STATUS_IOC_DISABLED); return BFA_STATUS_IOC_DISABLED; } if (!bfa_ioc_is_operational(port->ioc)) { bfa_trc(port, BFA_STATUS_IOC_FAILURE); return BFA_STATUS_IOC_FAILURE; } if (port->endis_pending) { bfa_trc(port, BFA_STATUS_DEVBUSY); return BFA_STATUS_DEVBUSY; } m = (struct bfi_port_generic_req_s *) port->endis_mb.msg; port->msgtag++; port->endis_cbfn = cbfn; port->endis_cbarg = cbarg; port->endis_pending = BFA_TRUE; bfi_h2i_set(m->mh, BFI_MC_PORT, BFI_PORT_H2I_DISABLE_REQ, bfa_ioc_portid(port->ioc)); bfa_ioc_mbox_queue(port->ioc, &port->endis_mb); return BFA_STATUS_OK; } /* * bfa_port_get_stats() * * Send the request to the f/w to fetch Port statistics. * * @param[in] Pointer to the Port module data structure. * * @return Status */ bfa_status_t bfa_port_get_stats(struct bfa_port_s *port, union bfa_port_stats_u *stats, bfa_port_stats_cbfn_t cbfn, void *cbarg) { struct bfi_port_get_stats_req_s *m; if (!bfa_ioc_is_operational(port->ioc)) { bfa_trc(port, BFA_STATUS_IOC_FAILURE); return BFA_STATUS_IOC_FAILURE; } if (port->stats_busy) { bfa_trc(port, BFA_STATUS_DEVBUSY); return BFA_STATUS_DEVBUSY; } m = (struct bfi_port_get_stats_req_s *) port->stats_mb.msg; port->stats = stats; port->stats_cbfn = cbfn; port->stats_cbarg = cbarg; port->stats_busy = BFA_TRUE; bfa_dma_be_addr_set(m->dma_addr, port->stats_dma.pa); bfi_h2i_set(m->mh, BFI_MC_PORT, BFI_PORT_H2I_GET_STATS_REQ, bfa_ioc_portid(port->ioc)); bfa_ioc_mbox_queue(port->ioc, &port->stats_mb); return BFA_STATUS_OK; } /* * bfa_port_clear_stats() * * * @param[in] Pointer to the Port module data structure. * * @return Status */ bfa_status_t bfa_port_clear_stats(struct bfa_port_s *port, bfa_port_stats_cbfn_t cbfn, void *cbarg) { struct bfi_port_generic_req_s *m; if (!bfa_ioc_is_operational(port->ioc)) { bfa_trc(port, BFA_STATUS_IOC_FAILURE); return BFA_STATUS_IOC_FAILURE; } if (port->stats_busy) { bfa_trc(port, BFA_STATUS_DEVBUSY); return BFA_STATUS_DEVBUSY; } m = (struct bfi_port_generic_req_s *) port->stats_mb.msg; port->stats_cbfn = cbfn; port->stats_cbarg = cbarg; port->stats_busy = BFA_TRUE; bfi_h2i_set(m->mh, BFI_MC_PORT, BFI_PORT_H2I_CLEAR_STATS_REQ, bfa_ioc_portid(port->ioc)); bfa_ioc_mbox_queue(port->ioc, &port->stats_mb); return BFA_STATUS_OK; } /* * bfa_port_hbfail() * * * @param[in] Pointer to the Port module data structure. * * @return void */ void bfa_port_hbfail(void *arg) { struct bfa_port_s *port = (struct bfa_port_s *) arg; /* Fail any pending get_stats/clear_stats requests */ if (port->stats_busy) { if (port->stats_cbfn) port->stats_cbfn(port->stats_cbarg, BFA_STATUS_FAILED); port->stats_cbfn = NULL; port->stats_busy = BFA_FALSE; } /* Clear any enable/disable is pending */ if (port->endis_pending) { if (port->endis_cbfn) port->endis_cbfn(port->endis_cbarg, BFA_STATUS_FAILED); port->endis_cbfn = NULL; port->endis_pending = BFA_FALSE; } } /* * bfa_port_attach() * * * @param[in] port - Pointer to the Port module data structure * ioc - Pointer to the ioc module data structure * dev - Pointer to the device driver module data structure * The device driver specific mbox ISR functions have * this pointer as one of the parameters. * trcmod - * * @return void */ void bfa_port_attach(struct bfa_port_s *port, struct bfa_ioc_s *ioc, void *dev, struct bfa_trc_mod_s *trcmod) { struct bfa_timeval_s tv; bfa_assert(port); port->dev = dev; port->ioc = ioc; port->trcmod = trcmod; port->stats_busy = BFA_FALSE; port->endis_pending = BFA_FALSE; port->stats_cbfn = NULL; port->endis_cbfn = NULL; bfa_ioc_mbox_regisr(port->ioc, BFI_MC_PORT, bfa_port_isr, port); bfa_ioc_hbfail_init(&port->hbfail, bfa_port_hbfail, port); bfa_ioc_hbfail_register(port->ioc, &port->hbfail); /* * initialize time stamp for stats reset */ bfa_os_gettimeofday(&tv); port->stats_reset_time = tv.tv_sec; bfa_trc(port, 0); } /* * bfa_port_detach() * * * @param[in] port - Pointer to the Port module data structure * * @return void */ void bfa_port_detach(struct bfa_port_s *port) { bfa_trc(port, 0); }