[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, 176 insertions, 0 deletions

diff --git a/drivers/scsi/bfa/include/cs/bfa_trc.h b/drivers/scsi/bfa/include/cs/bfa_trc.h
new file mode 100644
index 00000000000..3e743928c74
--- /dev/null
+++ b/drivers/scsi/bfa/include/cs/bfa_trc.h
@@ -0,0 +1,176 @@
+/*
+ * 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.
+ */
+#ifndef __BFA_TRC_H__
+#define __BFA_TRC_H__
+
+#include <bfa_os_inc.h>
+
+#ifndef BFA_TRC_MAX
+#define BFA_TRC_MAX     (4 * 1024)
+#endif
+
+#ifndef BFA_TRC_TS
+#define BFA_TRC_TS(_trcm)       ((_trcm)->ticks ++)
+#endif
+
+struct bfa_trc_s {
+#ifdef __BIGENDIAN
+        u16     fileno;
+        u16     line;
+#else
+        u16     line;
+        u16     fileno;
+#endif
+        u32     timestamp;
+        union {
+                struct {
+                        u32     rsvd;
+                        u32     u32;
+                } u32;
+                u64     u64;
+        } data;
+};
+
+
+struct bfa_trc_mod_s {
+        u32     head;
+        u32     tail;
+        u32     ntrc;
+        u32     stopped;
+        u32     ticks;
+        u32     rsvd[3];
+        struct bfa_trc_s trc[BFA_TRC_MAX];
+};
+
+
+enum {
+        BFA_TRC_FW   = 1,       /*  firmware modules */
+        BFA_TRC_HAL  = 2,       /*  BFA modules */
+        BFA_TRC_FCS  = 3,       /*  BFA FCS modules */
+        BFA_TRC_LDRV = 4,       /*  Linux driver modules */
+        BFA_TRC_SDRV = 5,       /*  Solaris driver modules */
+        BFA_TRC_VDRV = 6,       /*  vmware driver modules */
+        BFA_TRC_WDRV = 7,       /*  windows driver modules */
+        BFA_TRC_AEN  = 8,       /*  AEN module */
+        BFA_TRC_BIOS = 9,       /*  bios driver modules */
+        BFA_TRC_EFI  = 10,      /*  EFI driver modules */
+        BNA_TRC_WDRV = 11,      /*  BNA windows driver modules */
+        BNA_TRC_VDRV = 12,      /*  BNA vmware driver modules */
+        BNA_TRC_SDRV = 13,      /*  BNA Solaris driver modules */
+        BNA_TRC_LDRV = 14,      /*  BNA Linux driver modules */
+        BNA_TRC_HAL  = 15,      /*  BNA modules */
+        BFA_TRC_CNA  = 16,      /*  Common modules */
+        BNA_TRC_IMDRV = 17      /*  BNA windows intermediate driver modules */
+};
+#define BFA_TRC_MOD_SH  10
+#define BFA_TRC_MOD(__mod)      ((BFA_TRC_ ## __mod) << BFA_TRC_MOD_SH)
+
+/**
+ * Define a new tracing file (module). Module should match one defined above.
+ */
+#define BFA_TRC_FILE(__mod, __submod)                                   \
+        static int __trc_fileno = ((BFA_TRC_ ## __mod ## _ ## __submod) | \
+                                                 BFA_TRC_MOD(__mod))
+
+
+#define bfa_trc32(_trcp, _data) \
+        __bfa_trc((_trcp)->trcmod, __trc_fileno, __LINE__, (u32)_data)
+
+
+#ifndef BFA_BOOT_BUILD
+#define bfa_trc(_trcp, _data)   \
+        __bfa_trc((_trcp)->trcmod, __trc_fileno, __LINE__, (u64)_data)
+#else
+void bfa_boot_trc(struct bfa_trc_mod_s *trcmod, u16 fileno,
+                        u16 line, u32 data);
+#define bfa_trc(_trcp, _data)   \
+        bfa_boot_trc((_trcp)->trcmod, __trc_fileno, __LINE__, (u32)_data)
+#endif
+
+
+static inline void
+bfa_trc_init(struct bfa_trc_mod_s *trcm)
+{
+        trcm->head = trcm->tail = trcm->stopped = 0;
+        trcm->ntrc = BFA_TRC_MAX;
+}
+
+
+static inline void
+bfa_trc_stop(struct bfa_trc_mod_s *trcm)
+{
+        trcm->stopped = 1;
+}
+
+#ifdef FWTRC
+extern void dc_flush(void *data);
+#else
+#define dc_flush(data)
+#endif
+
+
+static inline void
+__bfa_trc(struct bfa_trc_mod_s *trcm, int fileno, int line, u64 data)
+{
+        int             tail = trcm->tail;
+        struct bfa_trc_s        *trc = &trcm->trc[tail];
+
+        if (trcm->stopped)
+                return;
+
+        trc->fileno = (u16) fileno;
+        trc->line = (u16) line;
+        trc->data.u64 = data;
+        trc->timestamp = BFA_TRC_TS(trcm);
+        dc_flush(trc);
+
+        trcm->tail = (trcm->tail + 1) & (BFA_TRC_MAX - 1);
+        if (trcm->tail == trcm->head)
+                trcm->head = (trcm->head + 1) & (BFA_TRC_MAX - 1);
+        dc_flush(trcm);
+}
+
+
+static inline void
+__bfa_trc32(struct bfa_trc_mod_s *trcm, int fileno, int line, u32 data)
+{
+        int             tail = trcm->tail;
+        struct bfa_trc_s *trc = &trcm->trc[tail];
+
+        if (trcm->stopped)
+                return;
+
+        trc->fileno = (u16) fileno;
+        trc->line = (u16) line;
+        trc->data.u32.u32 = data;
+        trc->timestamp = BFA_TRC_TS(trcm);
+        dc_flush(trc);
+
+        trcm->tail = (trcm->tail + 1) & (BFA_TRC_MAX - 1);
+        if (trcm->tail == trcm->head)
+                trcm->head = (trcm->head + 1) & (BFA_TRC_MAX - 1);
+        dc_flush(trcm);
+}
+
+#ifndef BFA_PERF_BUILD
+#define bfa_trc_fp(_trcp, _data)        bfa_trc(_trcp, _data)
+#else
+#define bfa_trc_fp(_trcp, _data)
+#endif
+
+#endif /* __BFA_TRC_H__ */
+