[SCSI] bfa: Brocade BFA FC SCSI driver

Add new driver for Brocade Hardware

Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

1 files changed, 175 insertions, 0 deletions

diff --git a/drivers/scsi/bfa/bfa_fcpim.c b/drivers/scsi/bfa/bfa_fcpim.c
new file mode 100644
index 00000000000..401babe3494
--- /dev/null
+++ b/drivers/scsi/bfa/bfa_fcpim.c
@@ -0,0 +1,175 @@
+/*
+ * 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 <bfa.h>
+#include <log/bfa_log_hal.h>
+
+BFA_TRC_FILE(HAL, FCPIM);
+BFA_MODULE(fcpim);
+
+/**
+ *  hal_fcpim_mod BFA FCP Initiator Mode module
+ */
+
+/**
+ *              Compute and return memory needed by FCP(im) module.
+ */
+static void
+bfa_fcpim_meminfo(struct bfa_iocfc_cfg_s *cfg, u32 *km_len,
+                u32 *dm_len)
+{
+        bfa_itnim_meminfo(cfg, km_len, dm_len);
+
+        /**
+         * IO memory
+         */
+        if (cfg->fwcfg.num_ioim_reqs < BFA_IOIM_MIN)
+                cfg->fwcfg.num_ioim_reqs = BFA_IOIM_MIN;
+        else if (cfg->fwcfg.num_ioim_reqs > BFA_IOIM_MAX)
+                cfg->fwcfg.num_ioim_reqs = BFA_IOIM_MAX;
+
+        *km_len += cfg->fwcfg.num_ioim_reqs *
+          (sizeof(struct bfa_ioim_s) + sizeof(struct bfa_ioim_sp_s));
+
+        *dm_len += cfg->fwcfg.num_ioim_reqs * BFI_IOIM_SNSLEN;
+
+        /**
+         * task management command memory
+         */
+        if (cfg->fwcfg.num_tskim_reqs < BFA_TSKIM_MIN)
+                cfg->fwcfg.num_tskim_reqs = BFA_TSKIM_MIN;
+        *km_len += cfg->fwcfg.num_tskim_reqs * sizeof(struct bfa_tskim_s);
+}
+
+
+static void
+bfa_fcpim_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg,
+                     struct bfa_meminfo_s *meminfo, struct bfa_pcidev_s *pcidev)
+{
+        struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa);
+
+        bfa_trc(bfa, cfg->drvcfg.path_tov);
+        bfa_trc(bfa, cfg->fwcfg.num_rports);
+        bfa_trc(bfa, cfg->fwcfg.num_ioim_reqs);
+        bfa_trc(bfa, cfg->fwcfg.num_tskim_reqs);
+
+        fcpim->bfa            = bfa;
+        fcpim->num_itnims     = cfg->fwcfg.num_rports;
+        fcpim->num_ioim_reqs  = cfg->fwcfg.num_ioim_reqs;
+        fcpim->num_tskim_reqs = cfg->fwcfg.num_tskim_reqs;
+        fcpim->path_tov       = cfg->drvcfg.path_tov;
+        fcpim->delay_comp         = cfg->drvcfg.delay_comp;
+
+        bfa_itnim_attach(fcpim, meminfo);
+        bfa_tskim_attach(fcpim, meminfo);
+        bfa_ioim_attach(fcpim, meminfo);
+}
+
+static void
+bfa_fcpim_initdone(struct bfa_s *bfa)
+{
+}
+
+static void
+bfa_fcpim_detach(struct bfa_s *bfa)
+{
+        struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa);
+
+        bfa_ioim_detach(fcpim);
+        bfa_tskim_detach(fcpim);
+}
+
+static void
+bfa_fcpim_start(struct bfa_s *bfa)
+{
+}
+
+static void
+bfa_fcpim_stop(struct bfa_s *bfa)
+{
+}
+
+static void
+bfa_fcpim_iocdisable(struct bfa_s *bfa)
+{
+        struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa);
+        struct bfa_itnim_s *itnim;
+        struct list_head        *qe, *qen;
+
+        list_for_each_safe(qe, qen, &fcpim->itnim_q) {
+                itnim = (struct bfa_itnim_s *) qe;
+                bfa_itnim_iocdisable(itnim);
+        }
+}
+
+void
+bfa_fcpim_path_tov_set(struct bfa_s *bfa, u16 path_tov)
+{
+        struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa);
+
+        fcpim->path_tov = path_tov * 1000;
+        if (fcpim->path_tov > BFA_FCPIM_PATHTOV_MAX)
+                fcpim->path_tov = BFA_FCPIM_PATHTOV_MAX;
+}
+
+u16
+bfa_fcpim_path_tov_get(struct bfa_s *bfa)
+{
+        struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa);
+
+        return (fcpim->path_tov / 1000);
+}
+
+bfa_status_t
+bfa_fcpim_get_modstats(struct bfa_s *bfa, struct bfa_fcpim_stats_s *modstats)
+{
+        struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa);
+
+        *modstats = fcpim->stats;
+
+        return BFA_STATUS_OK;
+}
+
+bfa_status_t
+bfa_fcpim_clr_modstats(struct bfa_s *bfa)
+{
+        struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa);
+
+        memset(&fcpim->stats, 0, sizeof(struct bfa_fcpim_stats_s));
+
+        return BFA_STATUS_OK;
+}
+
+void
+bfa_fcpim_qdepth_set(struct bfa_s *bfa, u16 q_depth)
+{
+        struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa);
+
+        bfa_assert(q_depth <= BFA_IOCFC_QDEPTH_MAX);
+
+        fcpim->q_depth = q_depth;
+}
+
+u16
+bfa_fcpim_qdepth_get(struct bfa_s *bfa)
+{
+        struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa);
+
+        return (fcpim->q_depth);
+}
+
+