diff options
Diffstat (limited to 'drivers/scsi/bfa/bfa_cee.c')
| -rw-r--r-- | drivers/scsi/bfa/bfa_cee.c | 492 |
1 files changed, 492 insertions, 0 deletions
diff --git a/drivers/scsi/bfa/bfa_cee.c b/drivers/scsi/bfa/bfa_cee.c new file mode 100644 index 000000000000..7a959c34e789 --- /dev/null +++ b/drivers/scsi/bfa/bfa_cee.c @@ -0,0 +1,492 @@ +/* + * Copyright (c) 2005-2009 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 <defs/bfa_defs_cee.h> +#include <cs/bfa_trc.h> +#include <cs/bfa_log.h> +#include <cs/bfa_debug.h> +#include <cee/bfa_cee.h> +#include <bfi/bfi_cee.h> +#include <bfi/bfi.h> +#include <bfa_ioc.h> +#include <cna/bfa_cna_trcmod.h> + +BFA_TRC_FILE(CNA, CEE); + +#define bfa_ioc_portid(__ioc) ((__ioc)->port_id) +#define bfa_lpuid(__arg) bfa_ioc_portid(&(__arg)->ioc) + +static void bfa_cee_format_lldp_cfg(struct bfa_cee_lldp_cfg_s *lldp_cfg); +static void bfa_cee_format_dcbcx_stats(struct bfa_cee_dcbx_stats_s + *dcbcx_stats); +static void bfa_cee_format_lldp_stats(struct bfa_cee_lldp_stats_s + *lldp_stats); +static void bfa_cee_format_cfg_stats(struct bfa_cee_cfg_stats_s *cfg_stats); +static void bfa_cee_format_cee_cfg(void *buffer); +static void bfa_cee_format_cee_stats(void *buffer); + +static void +bfa_cee_format_cee_stats(void *buffer) +{ + struct bfa_cee_stats_s *cee_stats = buffer; + bfa_cee_format_dcbcx_stats(&cee_stats->dcbx_stats); + bfa_cee_format_lldp_stats(&cee_stats->lldp_stats); + bfa_cee_format_cfg_stats(&cee_stats->cfg_stats); +} + +static void +bfa_cee_format_cee_cfg(void *buffer) +{ + struct bfa_cee_attr_s *cee_cfg = buffer; + bfa_cee_format_lldp_cfg(&cee_cfg->lldp_remote); +} + +static void +bfa_cee_format_dcbcx_stats(struct bfa_cee_dcbx_stats_s *dcbcx_stats) +{ + dcbcx_stats->subtlvs_unrecognized = + bfa_os_ntohl(dcbcx_stats->subtlvs_unrecognized); + dcbcx_stats->negotiation_failed = + bfa_os_ntohl(dcbcx_stats->negotiation_failed); + dcbcx_stats->remote_cfg_changed = + bfa_os_ntohl(dcbcx_stats->remote_cfg_changed); + dcbcx_stats->tlvs_received = bfa_os_ntohl(dcbcx_stats->tlvs_received); + dcbcx_stats->tlvs_invalid = bfa_os_ntohl(dcbcx_stats->tlvs_invalid); + dcbcx_stats->seqno = bfa_os_ntohl(dcbcx_stats->seqno); + dcbcx_stats->ackno = bfa_os_ntohl(dcbcx_stats->ackno); + dcbcx_stats->recvd_seqno = bfa_os_ntohl(dcbcx_stats->recvd_seqno); + dcbcx_stats->recvd_ackno = bfa_os_ntohl(dcbcx_stats->recvd_ackno); +} + +static void +bfa_cee_format_lldp_stats(struct bfa_cee_lldp_stats_s *lldp_stats) +{ + lldp_stats->frames_transmitted = + bfa_os_ntohl(lldp_stats->frames_transmitted); + lldp_stats->frames_aged_out = bfa_os_ntohl(lldp_stats->frames_aged_out); + lldp_stats->frames_discarded = + bfa_os_ntohl(lldp_stats->frames_discarded); + lldp_stats->frames_in_error = bfa_os_ntohl(lldp_stats->frames_in_error); + lldp_stats->frames_rcvd = bfa_os_ntohl(lldp_stats->frames_rcvd); + lldp_stats->tlvs_discarded = bfa_os_ntohl(lldp_stats->tlvs_discarded); + lldp_stats->tlvs_unrecognized = + bfa_os_ntohl(lldp_stats->tlvs_unrecognized); +} + +static void +bfa_cee_format_cfg_stats(struct bfa_cee_cfg_stats_s *cfg_stats) +{ + cfg_stats->cee_status_down = bfa_os_ntohl(cfg_stats->cee_status_down); + cfg_stats->cee_status_up = bfa_os_ntohl(cfg_stats->cee_status_up); + cfg_stats->cee_hw_cfg_changed = + bfa_os_ntohl(cfg_stats->cee_hw_cfg_changed); + cfg_stats->recvd_invalid_cfg = + bfa_os_ntohl(cfg_stats->recvd_invalid_cfg); +} + +static void +bfa_cee_format_lldp_cfg(struct bfa_cee_lldp_cfg_s *lldp_cfg) +{ + lldp_cfg->time_to_interval = bfa_os_ntohs(lldp_cfg->time_to_interval); + lldp_cfg->enabled_system_cap = + bfa_os_ntohs(lldp_cfg->enabled_system_cap); +} + +/** + * bfa_cee_attr_meminfo() + * + * + * @param[in] void + * + * @return Size of DMA region + */ +static u32 +bfa_cee_attr_meminfo(void) +{ + return BFA_ROUNDUP(sizeof(struct bfa_cee_attr_s), BFA_DMA_ALIGN_SZ); +} + +/** + * bfa_cee_stats_meminfo() + * + * + * @param[in] void + * + * @return Size of DMA region + */ +static u32 +bfa_cee_stats_meminfo(void) +{ + return BFA_ROUNDUP(sizeof(struct bfa_cee_stats_s), BFA_DMA_ALIGN_SZ); +} + +/** + * bfa_cee_get_attr_isr() + * + * + * @param[in] cee - Pointer to the CEE module + * status - Return status from the f/w + * + * @return void + */ +static void +bfa_cee_get_attr_isr(struct bfa_cee_s *cee, bfa_status_t status) +{ + cee->get_attr_status = status; + bfa_trc(cee, 0); + if (status == BFA_STATUS_OK) { + bfa_trc(cee, 0); + /* + * The requested data has been copied to the DMA area, *process + * it. + */ + memcpy(cee->attr, cee->attr_dma.kva, + sizeof(struct bfa_cee_attr_s)); + bfa_cee_format_cee_cfg(cee->attr); + } + cee->get_attr_pending = BFA_FALSE; + if (cee->cbfn.get_attr_cbfn) { + bfa_trc(cee, 0); + cee->cbfn.get_attr_cbfn(cee->cbfn.get_attr_cbarg, status); + } + bfa_trc(cee, 0); +} + +/** + * bfa_cee_get_attr_isr() + * + * + * @param[in] cee - Pointer to the CEE module + * status - Return status from the f/w + * + * @return void + */ +static void +bfa_cee_get_stats_isr(struct bfa_cee_s *cee, bfa_status_t status) +{ + cee->get_stats_status = status; + bfa_trc(cee, 0); + if (status == BFA_STATUS_OK) { + bfa_trc(cee, 0); + /* + * The requested data has been copied to the DMA area, process + * it. + */ + memcpy(cee->stats, cee->stats_dma.kva, + sizeof(struct bfa_cee_stats_s)); + bfa_cee_format_cee_stats(cee->stats); + } + cee->get_stats_pending = BFA_FALSE; + bfa_trc(cee, 0); + if (cee->cbfn.get_stats_cbfn) { + bfa_trc(cee, 0); + cee->cbfn.get_stats_cbfn(cee->cbfn.get_stats_cbarg, status); + } + bfa_trc(cee, 0); +} + +/** + * bfa_cee_get_attr_isr() + * + * + * @param[in] cee - Pointer to the CEE module + * status - Return status from the f/w + * + * @return void + */ +static void +bfa_cee_reset_stats_isr(struct bfa_cee_s *cee, bfa_status_t status) +{ + cee->reset_stats_status = status; + cee->reset_stats_pending = BFA_FALSE; + if (cee->cbfn.reset_stats_cbfn) + cee->cbfn.reset_stats_cbfn(cee->cbfn.reset_stats_cbarg, status); +} + +/** + * bfa_cee_meminfo() + * + * + * @param[in] void + * + * @return Size of DMA region + */ +u32 +bfa_cee_meminfo(void) +{ + return (bfa_cee_attr_meminfo() + bfa_cee_stats_meminfo()); +} + +/** + * bfa_cee_mem_claim() + * + * + * @param[in] cee CEE module pointer + * dma_kva Kernel Virtual Address of CEE DMA Memory + * dma_pa Physical Address of CEE DMA Memory + * + * @return void + */ +void +bfa_cee_mem_claim(struct bfa_cee_s *cee, u8 *dma_kva, u64 dma_pa) +{ + cee->attr_dma.kva = dma_kva; + cee->attr_dma.pa = dma_pa; + cee->stats_dma.kva = dma_kva + bfa_cee_attr_meminfo(); + cee->stats_dma.pa = dma_pa + bfa_cee_attr_meminfo(); + cee->attr = (struct bfa_cee_attr_s *)dma_kva; + cee->stats = + (struct bfa_cee_stats_s *)(dma_kva + bfa_cee_attr_meminfo()); +} + +/** + * bfa_cee_get_attr() + * + * Send the request to the f/w to fetch CEE attributes. + * + * @param[in] Pointer to the CEE module data structure. + * + * @return Status + */ + +bfa_status_t +bfa_cee_get_attr(struct bfa_cee_s *cee, struct bfa_cee_attr_s *attr, + bfa_cee_get_attr_cbfn_t cbfn, void *cbarg) +{ + struct bfi_cee_get_req_s *cmd; + + bfa_assert((cee != NULL) && (cee->ioc != NULL)); + bfa_trc(cee, 0); + if (!bfa_ioc_is_operational(cee->ioc)) { + bfa_trc(cee, 0); + return BFA_STATUS_IOC_FAILURE; + } + if (cee->get_attr_pending == BFA_TRUE) { + bfa_trc(cee, 0); + return BFA_STATUS_DEVBUSY; + } + cee->get_attr_pending = BFA_TRUE; + cmd = (struct bfi_cee_get_req_s *)cee->get_cfg_mb.msg; + cee->attr = attr; + cee->cbfn.get_attr_cbfn = cbfn; + cee->cbfn.get_attr_cbarg = cbarg; + bfi_h2i_set(cmd->mh, BFI_MC_CEE, BFI_CEE_H2I_GET_CFG_REQ, + bfa_ioc_portid(cee->ioc)); + bfa_dma_be_addr_set(cmd->dma_addr, cee->attr_dma.pa); + bfa_ioc_mbox_queue(cee->ioc, &cee->get_cfg_mb); + bfa_trc(cee, 0); + + return BFA_STATUS_OK; +} + +/** + * bfa_cee_get_stats() + * + * Send the request to the f/w to fetch CEE statistics. + * + * @param[in] Pointer to the CEE module data structure. + * + * @return Status + */ + +bfa_status_t +bfa_cee_get_stats(struct bfa_cee_s *cee, struct bfa_cee_stats_s *stats, + bfa_cee_get_stats_cbfn_t cbfn, void *cbarg) +{ + struct bfi_cee_get_req_s *cmd; + + bfa_assert((cee != NULL) && (cee->ioc != NULL)); + + if (!bfa_ioc_is_operational(cee->ioc)) { + bfa_trc(cee, 0); + return BFA_STATUS_IOC_FAILURE; + } + if (cee->get_stats_pending == BFA_TRUE) { + bfa_trc(cee, 0); + return BFA_STATUS_DEVBUSY; + } + cee->get_stats_pending = BFA_TRUE; + cmd = (struct bfi_cee_get_req_s *)cee->get_stats_mb.msg; + cee->stats = stats; + cee->cbfn.get_stats_cbfn = cbfn; + cee->cbfn.get_stats_cbarg = cbarg; + bfi_h2i_set(cmd->mh, BFI_MC_CEE, BFI_CEE_H2I_GET_STATS_REQ, + bfa_ioc_portid(cee->ioc)); + bfa_dma_be_addr_set(cmd->dma_addr, cee->stats_dma.pa); + bfa_ioc_mbox_queue(cee->ioc, &cee->get_stats_mb); + bfa_trc(cee, 0); + + return BFA_STATUS_OK; +} + +/** + * bfa_cee_reset_stats() + * + * + * @param[in] Pointer to the CEE module data structure. + * + * @return Status + */ + +bfa_status_t +bfa_cee_reset_stats(struct bfa_cee_s *cee, bfa_cee_reset_stats_cbfn_t cbfn, + void *cbarg) +{ + struct bfi_cee_reset_stats_s *cmd; + + bfa_assert((cee != NULL) && (cee->ioc != NULL)); + if (!bfa_ioc_is_operational(cee->ioc)) { + bfa_trc(cee, 0); + return BFA_STATUS_IOC_FAILURE; + } + if (cee->reset_stats_pending == BFA_TRUE) { + bfa_trc(cee, 0); + return BFA_STATUS_DEVBUSY; + } + cee->reset_stats_pending = BFA_TRUE; + cmd = (struct bfi_cee_reset_stats_s *)cee->reset_stats_mb.msg; + cee->cbfn.reset_stats_cbfn = cbfn; + cee->cbfn.reset_stats_cbarg = cbarg; + bfi_h2i_set(cmd->mh, BFI_MC_CEE, BFI_CEE_H2I_RESET_STATS, + bfa_ioc_portid(cee->ioc)); + bfa_ioc_mbox_queue(cee->ioc, &cee->reset_stats_mb); + bfa_trc(cee, 0); + return BFA_STATUS_OK; +} + +/** + * bfa_cee_isrs() + * + * + * @param[in] Pointer to the CEE module data structure. + * + * @return void + */ + +void +bfa_cee_isr(void *cbarg, struct bfi_mbmsg_s *m) +{ + union bfi_cee_i2h_msg_u *msg; + struct bfi_cee_get_rsp_s *get_rsp; + struct bfa_cee_s *cee = (struct bfa_cee_s *)cbarg; + msg = (union bfi_cee_i2h_msg_u *)m; + get_rsp = (struct bfi_cee_get_rsp_s *)m; + bfa_trc(cee, msg->mh.msg_id); + switch (msg->mh.msg_id) { + case BFI_CEE_I2H_GET_CFG_RSP: + bfa_trc(cee, get_rsp->cmd_status); + bfa_cee_get_attr_isr(cee, get_rsp->cmd_status); + break; + case BFI_CEE_I2H_GET_STATS_RSP: + bfa_cee_get_stats_isr(cee, get_rsp->cmd_status); + break; + case BFI_CEE_I2H_RESET_STATS_RSP: + bfa_cee_reset_stats_isr(cee, get_rsp->cmd_status); + break; + default: + bfa_assert(0); + } +} + +/** + * bfa_cee_hbfail() + * + * + * @param[in] Pointer to the CEE module data structure. + * + * @return void + */ + +void +bfa_cee_hbfail(void *arg) +{ + struct bfa_cee_s *cee; + cee = (struct bfa_cee_s *)arg; + + if (cee->get_attr_pending == BFA_TRUE) { + cee->get_attr_status = BFA_STATUS_FAILED; + cee->get_attr_pending = BFA_FALSE; + if (cee->cbfn.get_attr_cbfn) { + cee->cbfn.get_attr_cbfn(cee->cbfn.get_attr_cbarg, + BFA_STATUS_FAILED); + } + } + if (cee->get_stats_pending == BFA_TRUE) { + cee->get_stats_status = BFA_STATUS_FAILED; + cee->get_stats_pending = BFA_FALSE; + if (cee->cbfn.get_stats_cbfn) { + cee->cbfn.get_stats_cbfn(cee->cbfn.get_stats_cbarg, + BFA_STATUS_FAILED); + } + } + if (cee->reset_stats_pending == BFA_TRUE) { + cee->reset_stats_status = BFA_STATUS_FAILED; + cee->reset_stats_pending = BFA_FALSE; + if (cee->cbfn.reset_stats_cbfn) { + cee->cbfn.reset_stats_cbfn(cee->cbfn.reset_stats_cbarg, + BFA_STATUS_FAILED); + } + } +} + +/** + * bfa_cee_attach() + * + * + * @param[in] cee - Pointer to the CEE 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 - + * logmod - + * + * @return void + */ +void +bfa_cee_attach(struct bfa_cee_s *cee, struct bfa_ioc_s *ioc, void *dev, + struct bfa_trc_mod_s *trcmod, struct bfa_log_mod_s *logmod) +{ + bfa_assert(cee != NULL); + cee->dev = dev; + cee->trcmod = trcmod; + cee->logmod = logmod; + cee->ioc = ioc; + + bfa_ioc_mbox_regisr(cee->ioc, BFI_MC_CEE, bfa_cee_isr, cee); + bfa_ioc_hbfail_init(&cee->hbfail, bfa_cee_hbfail, cee); + bfa_ioc_hbfail_register(cee->ioc, &cee->hbfail); + bfa_trc(cee, 0); +} + +/** + * bfa_cee_detach() + * + * + * @param[in] cee - Pointer to the CEE module data structure + * + * @return void + */ +void +bfa_cee_detach(struct bfa_cee_s *cee) +{ + /* + * For now, just check if there is some ioctl pending and mark that as + * failed? + */ + /* bfa_cee_hbfail(cee); */ +} |