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authorJing Huang <huangj@brocade.com>2009-09-24 04:46:15 +0400
committerJames Bottomley <James.Bottomley@suse.de>2009-10-02 18:47:40 +0400
commit7725ccfda59715ecf8f99e3b520a0b84cc2ea79e (patch)
treedf76910891c6b92bf23c06c84955bf600c9d7573 /drivers/scsi/bfa/include/cs/bfa_trc.h
parent5415907af1f5ef80c95147bacbd321b0d4236dd5 (diff)
downloadlinux-7725ccfda59715ecf8f99e3b520a0b84cc2ea79e.tar.xz
[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/include/cs/bfa_trc.h')
-rw-r--r--drivers/scsi/bfa/include/cs/bfa_trc.h176
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 000000000000..3e743928c74c
--- /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__ */
+