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authorJing Huang <huangj@brocade.com>2009-09-23 17:46:15 -0700
committerJames Bottomley <James.Bottomley@suse.de>2009-10-02 09:47:40 -0500
commit7725ccfda59715ecf8f99e3b520a0b84cc2ea79e (patch)
treedf76910891c6b92bf23c06c84955bf600c9d7573 /drivers/scsi/bfa/bfa_fcpim.c
parent5415907af1f5ef80c95147bacbd321b0d4236dd5 (diff)
[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>
Diffstat (limited to 'drivers/scsi/bfa/bfa_fcpim.c')
-rw-r--r--drivers/scsi/bfa/bfa_fcpim.c175
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);
+}
+
+