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); */
+}