Revision b03c720211ea5ec027ad85f1e147e3d8122429ba authored by Pyun YongHyeon on 14 January 2010, 21:54:20 UTC, committed by Pyun YongHyeon on 14 January 2010, 21:54:20 UTC
Add bus_dma(9) and endianness support to ste(4). o Sorted includes and added missing header files. o Added basic endianness support. In theory ste(4) should work on any architectures. o Remove the use of contigmalloc(9), contigfree(9) and vtophys(9). o Added 8 byte alignment limitation of TX/RX descriptor. o Added 1 byte alignment requirement for TX/RX buffers. o ste(4) controllers does not support DAC. Limit DMA address space to be within 32bit address. o Added spare DMA map to gracefully recover from DMA map failure. o Removed dead code for checking STE_RXSTAT_DMADONE bit. The bit was already checked in each iteration of loop so it can't be true. o Added second argument count to ste_rxeof(). It is used to limit number of iterations done in RX handler. ATM polling is the only consumer. o Removed ste_rxeoc() which was added to address RX stuck issue (cvs rev 1.66). Unlike TX descriptors, ST201 supports chaining descriptors to form a ring for RX descriptors. If RX descriptor chaining is not supported it's possible for controller to stop receiving incoming frames once controller pass the end of RX descriptor which in turn requires driver post new RX descriptors to receive more frames. For TX descriptors which does not support chaning, we exactly do manual chaining in driver by concatenating new descriptors to the end of previous TX chain. Maybe the workaround was borrowed from other drivers that does not support RX descriptor chaining, which is not valid for ST201 controllers. I still have no idea how this address RX stuck issue and I can't reproduce the RX stuck issue on DFE-550TX controller. o Removed hw.ste_rxsyncs sysctl as the workaround was removed. o TX/RX side bus_dmamap_load_mbuf_sg(9) support. o Reimplemented optimized ste_encap(). o Simplified TX logic of ste_start_locked(). o Added comments for TFD/RFD requirements. o Increased number of RX descriptors to 128 from 64. 128 gave much better performance than 64 under high network loads.
1 parent d982c88
mfiutil.h
/*-
* Copyright (c) 2008, 2009 Yahoo!, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The names of the authors may not be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef __MFIUTIL_H__
#define __MFIUTIL_H__
#include <sys/cdefs.h>
#include <sys/linker_set.h>
#include <dev/mfi/mfireg.h>
/* 4.x compat */
#ifndef SET_DECLARE
/* <sys/cdefs.h> */
#define __used
#define __section(x) __attribute__((__section__(x)))
/* <sys/linker_set.h> */
#undef __MAKE_SET
#undef DATA_SET
#define __MAKE_SET(set, sym) \
static void const * const __set_##set##_sym_##sym \
__section("set_" #set) __used = &sym
#define DATA_SET(set, sym) __MAKE_SET(set, sym)
#define SET_DECLARE(set, ptype) \
extern ptype *__CONCAT(__start_set_,set); \
extern ptype *__CONCAT(__stop_set_,set)
#define SET_BEGIN(set) \
(&__CONCAT(__start_set_,set))
#define SET_LIMIT(set) \
(&__CONCAT(__stop_set_,set))
#define SET_FOREACH(pvar, set) \
for (pvar = SET_BEGIN(set); pvar < SET_LIMIT(set); pvar++)
int humanize_number(char *_buf, size_t _len, int64_t _number,
const char *_suffix, int _scale, int _flags);
/* humanize_number(3) */
#define HN_DECIMAL 0x01
#define HN_NOSPACE 0x02
#define HN_B 0x04
#define HN_DIVISOR_1000 0x08
#define HN_GETSCALE 0x10
#define HN_AUTOSCALE 0x20
#endif
/* Constants for DDF RAID levels. */
#define DDF_RAID0 0x00
#define DDF_RAID1 0x01
#define DDF_RAID3 0x03
#define DDF_RAID5 0x05
#define DDF_RAID6 0x06
#define DDF_RAID1E 0x11
#define DDF_JBOD 0x0f
#define DDF_CONCAT 0x1f
#define DDF_RAID5E 0x15
#define DDF_RAID5EE 0x25
struct mfiutil_command {
const char *name;
int (*handler)(int ac, char **av);
};
#define MFI_DATASET(name) mfiutil_ ## name ## _table
#define MFI_COMMAND(set, name, function) \
static struct mfiutil_command function ## _mfiutil_command = \
{ #name, function }; \
DATA_SET(MFI_DATASET(set), function ## _mfiutil_command)
#define MFI_TABLE(set, name) \
SET_DECLARE(MFI_DATASET(name), struct mfiutil_command); \
\
static int \
mfiutil_ ## name ## _table_handler(int ac, char **av) \
{ \
return (mfi_table_handler(SET_BEGIN(MFI_DATASET(name)), \
SET_LIMIT(MFI_DATASET(name)), ac, av)); \
} \
MFI_COMMAND(set, name, mfiutil_ ## name ## _table_handler)
extern int mfi_unit;
void mbox_store_ldref(uint8_t *mbox, union mfi_ld_ref *ref);
void mbox_store_pdref(uint8_t *mbox, union mfi_pd_ref *ref);
void mfi_display_progress(const char *label, struct mfi_progress *prog);
int mfi_table_handler(struct mfiutil_command **start,
struct mfiutil_command **end, int ac, char **av);
const char *mfi_raid_level(uint8_t primary_level, uint8_t secondary_level);
const char *mfi_ldstate(enum mfi_ld_state state);
const char *mfi_pdstate(enum mfi_pd_state state);
const char *mfi_pd_inq_string(struct mfi_pd_info *info);
const char *mfi_volume_name(int fd, uint8_t target_id);
int mfi_volume_busy(int fd, uint8_t target_id);
int mfi_config_read(int fd, struct mfi_config_data **configp);
int mfi_lookup_drive(int fd, char *drive, uint16_t *device_id);
int mfi_lookup_volume(int fd, const char *name, uint8_t *target_id);
int mfi_dcmd_command(int fd, uint32_t opcode, void *buf, size_t bufsize,
uint8_t *mbox, size_t mboxlen, uint8_t *statusp);
int mfi_open(int unit);
int mfi_ctrl_get_info(int fd, struct mfi_ctrl_info *info, uint8_t *statusp);
int mfi_ld_get_info(int fd, uint8_t target_id, struct mfi_ld_info *info,
uint8_t *statusp);
int mfi_ld_get_list(int fd, struct mfi_ld_list *list, uint8_t *statusp);
int mfi_pd_get_info(int fd, uint16_t device_id, struct mfi_pd_info *info,
uint8_t *statusp);
int mfi_pd_get_list(int fd, struct mfi_pd_list **listp, uint8_t *statusp);
int mfi_reconfig_supported(void);
const char *mfi_status(u_int status_code);
#endif /* !__MFIUTIL_H__ */
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