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/*-
* Copyright(c) 2002-2011 Exar Corp.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification are permitted provided 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. Neither the name of the Exar Corporation nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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: release/9.1.0/sys/dev/vxge/vxgehal/vxgehal-blockpool.c 221167 2011-04-28 14:33:15Z gnn $*/
#include <dev/vxge/vxgehal/vxgehal.h>
/*
* __hal_blockpool_create - Create block pool
* @devh: Pointer to HAL Device object.
* @blockpool: Block pool to be created.
* @pool_size: Number of blocks in the pool.
* @pool_incr: Number of blocks to be request from OS at a time
* @pool_min: Number of blocks below which new blocks to be requested.
* @pool_max: Number of blocks above which block to be freed.
*
* This function creates block pool
*/
vxge_hal_status_e
__hal_blockpool_create(vxge_hal_device_h devh,
__hal_blockpool_t *blockpool,
u32 pool_size,
u32 pool_incr,
u32 pool_min,
u32 pool_max)
{
u32 i;
__hal_device_t *hldev = (__hal_device_t *) devh;
__hal_blockpool_entry_t *entry;
void *memblock;
dma_addr_t dma_addr;
pci_dma_h dma_handle;
pci_dma_acc_h acc_handle;
vxge_hal_status_e status = VXGE_HAL_OK;
vxge_assert(devh != NULL);
vxge_os_memzero(&dma_handle, sizeof(pci_dma_h));
vxge_os_memzero(&acc_handle, sizeof(pci_dma_acc_h));
vxge_hal_trace_log_pool("==> %s:%s:%d",
__FILE__, __func__, __LINE__);
vxge_hal_trace_log_pool("devh = 0x"VXGE_OS_STXFMT", "
"blockpool = 0x"VXGE_OS_STXFMT", pool_size = %d, pool_incr = %d, "
"pool_min = %d, pool_max = %d", (ptr_t) devh, (ptr_t) blockpool,
pool_size, pool_incr, pool_min, pool_max);
if (blockpool == NULL) {
vxge_hal_err_log_pool(
"%s:%d null pointer passed. blockpool is null",
__FILE__, __LINE__);
vxge_hal_trace_log_pool("<== %s:%s:%d Result: %d",
__FILE__, __func__, __LINE__, VXGE_HAL_FAIL);
return (VXGE_HAL_FAIL);
}
blockpool->hldev = devh;
blockpool->block_size = VXGE_OS_HOST_PAGE_SIZE;
blockpool->pool_size = 0;
blockpool->pool_incr = pool_incr;
blockpool->pool_min = pool_min;
blockpool->pool_max = pool_max;
blockpool->req_out = 0;
#if defined(VXGE_HAL_DMA_CONSISTENT)
blockpool->dma_flags = VXGE_OS_DMA_CONSISTENT;
#else
blockpool->dma_flags = VXGE_OS_DMA_STREAMING;
#endif
vxge_list_init(&blockpool->free_block_list);
vxge_list_init(&blockpool->free_entry_list);
#if defined(VXGE_HAL_BP_POST)
vxge_os_spin_lock_init(&blockpool->pool_lock, hldev->header.pdev);
#elif defined(VXGE_HAL_BP_POST_IRQ)
vxge_os_spin_lock_init_irq(&blockpool->pool_lock, hldev->header.irqh);
#endif
for (i = 0; i < pool_size + pool_max; i++) {
entry = (__hal_blockpool_entry_t *) vxge_os_malloc(
hldev->header.pdev,
sizeof(__hal_blockpool_entry_t));
if (entry == NULL) {
__hal_blockpool_destroy(blockpool);
vxge_hal_trace_log_pool("<== %s:%s:%d Result: %d",
__FILE__, __func__, __LINE__,
VXGE_HAL_ERR_OUT_OF_MEMORY);
return (VXGE_HAL_ERR_OUT_OF_MEMORY);
}
vxge_list_insert(&entry->item, &blockpool->free_entry_list);
}
for (i = 0; i < pool_size; i++) {
memblock = vxge_os_dma_malloc(
hldev->header.pdev,
VXGE_OS_HOST_PAGE_SIZE,
blockpool->dma_flags,
&dma_handle,
&acc_handle);
if (memblock == NULL) {
__hal_blockpool_destroy(blockpool);
vxge_hal_trace_log_pool("<== %s:%s:%d Result: %d",
__FILE__, __func__, __LINE__,
VXGE_HAL_ERR_OUT_OF_MEMORY);
return (VXGE_HAL_ERR_OUT_OF_MEMORY);
}
dma_addr = vxge_os_dma_map(
hldev->header.pdev,
dma_handle,
memblock,
VXGE_OS_HOST_PAGE_SIZE,
VXGE_OS_DMA_DIR_BIDIRECTIONAL,
blockpool->dma_flags);
if (dma_addr == VXGE_OS_INVALID_DMA_ADDR) {
vxge_os_dma_free(hldev->header.pdev,
memblock,
VXGE_OS_HOST_PAGE_SIZE,
blockpool->dma_flags,
&dma_handle,
&acc_handle);
__hal_blockpool_destroy(blockpool);
vxge_hal_trace_log_pool("<== %s:%s:%d Result: %d",
__FILE__, __func__, __LINE__,
VXGE_HAL_ERR_OUT_OF_MEMORY);
return (VXGE_HAL_ERR_OUT_OF_MEMORY);
}
entry = (__hal_blockpool_entry_t *)
vxge_list_first_get(&blockpool->free_entry_list);
if (entry == NULL) {
entry = (__hal_blockpool_entry_t *) vxge_os_malloc(
hldev->header.pdev,
sizeof(__hal_blockpool_entry_t));
}
if (entry != NULL) {
vxge_list_remove(&entry->item);
entry->length = VXGE_OS_HOST_PAGE_SIZE;
entry->memblock = memblock;
entry->dma_addr = dma_addr;
entry->acc_handle = acc_handle;
entry->dma_handle = dma_handle;
vxge_list_insert(&entry->item,
&blockpool->free_block_list);
blockpool->pool_size++;
} else {
__hal_blockpool_destroy(blockpool);
vxge_hal_trace_log_pool("<== %s:%s:%d Result: %d",
__FILE__, __func__, __LINE__,
VXGE_HAL_ERR_OUT_OF_MEMORY);
return (VXGE_HAL_ERR_OUT_OF_MEMORY);
}
}
vxge_hal_info_log_pool(
"Blockpool block size:%d block pool size: %d",
blockpool->block_size, blockpool->pool_size);
vxge_hal_trace_log_pool("<== %s:%s:%d Result: %d",
__FILE__, __func__, __LINE__, status);
return (status);
}
/*
* __hal_blockpool_destroy - Deallocates the block pool
* @blockpool: blockpool to be deallocated
*
* This function freeup the memory pool and removes the
* block pool.
*/
void
__hal_blockpool_destroy(
__hal_blockpool_t *blockpool)
{
__hal_device_t *hldev;
vxge_list_t *p, *n;
vxge_assert(blockpool != NULL);
hldev = (__hal_device_t *) blockpool->hldev;
vxge_hal_trace_log_pool("==> %s:%s:%d",
__FILE__, __func__, __LINE__);
vxge_hal_trace_log_pool("blockpool = 0x"VXGE_OS_STXFMT,
(ptr_t) blockpool);
if (blockpool == NULL) {
vxge_hal_err_log_pool(
"%s:%d null pointer passed blockpool = null",
__FILE__, __LINE__);
vxge_hal_trace_log_pool("<== %s:%s:%d Result: 1",
__FILE__, __func__, __LINE__);
return;
}
vxge_list_for_each_safe(p, n, &blockpool->free_block_list) {
vxge_os_dma_unmap(hldev->header.pdev,
((__hal_blockpool_entry_t *) p)->dma_handle,
((__hal_blockpool_entry_t *) p)->dma_addr,
((__hal_blockpool_entry_t *) p)->length,
VXGE_OS_DMA_DIR_BIDIRECTIONAL);
vxge_os_dma_free(hldev->header.pdev,
((__hal_blockpool_entry_t *) p)->memblock,
((__hal_blockpool_entry_t *) p)->length,
blockpool->dma_flags,
&((__hal_blockpool_entry_t *) p)->dma_handle,
&((__hal_blockpool_entry_t *) p)->acc_handle);
vxge_list_remove(&((__hal_blockpool_entry_t *) p)->item);
vxge_os_free(hldev->header.pdev,
(void *)p, sizeof(__hal_blockpool_entry_t));
blockpool->pool_size--;
}
vxge_list_for_each_safe(p, n, &blockpool->free_entry_list) {
vxge_list_remove(&((__hal_blockpool_entry_t *) p)->item);
vxge_os_free(hldev->header.pdev,
(void *)p, sizeof(__hal_blockpool_entry_t));
}
#if defined(VXGE_HAL_BP_POST)
vxge_os_spin_lock_destroy(&blockpool->pool_lock,
hldev->header.pdev);
#elif defined(VXGE_HAL_BP_POST_IRQ)
vxge_os_spin_lock_destroy_irq(&blockpool->pool_lock,
hldev->header.pdev);
#endif
vxge_hal_trace_log_pool("<== %s:%s:%d Result: 0",
__FILE__, __func__, __LINE__);
}
/*
* __hal_blockpool_blocks_add - Request additional blocks
* @blockpool: Block pool.
*
* Requests additional blocks to block pool
*/
static inline void
__hal_blockpool_blocks_add(
__hal_blockpool_t * blockpool)
{
u32 nreq = 0, i;
__hal_device_t *hldev;
vxge_assert(blockpool != NULL);
hldev = (__hal_device_t *) blockpool->hldev;
vxge_hal_trace_log_pool("==> %s:%s:%d",
__FILE__, __func__, __LINE__);
vxge_hal_trace_log_pool("blockpool = 0x"VXGE_OS_STXFMT,
(ptr_t) blockpool);
#if defined(VXGE_HAL_BP_POST)
vxge_os_spin_lock(&blockpool->pool_lock);
#elif defined(VXGE_HAL_BP_POST_IRQ)
vxge_os_spin_lock_irq(&blockpool->pool_lock, flags);
#endif
if ((blockpool->pool_size + blockpool->req_out) <
blockpool->pool_min) {
nreq = blockpool->pool_incr;
blockpool->req_out += nreq;
}
#if defined(VXGE_HAL_BP_POST)
vxge_os_spin_unlock(&blockpool->pool_lock);
#elif defined(VXGE_HAL_BP_POST_IRQ)
vxge_os_spin_unlock_irq(&blockpool->pool_lock, flags);
#endif
for (i = 0; i < nreq; i++) {
vxge_os_dma_malloc_async(
((__hal_device_t *) blockpool->hldev)->header.pdev,
blockpool->hldev,
VXGE_OS_HOST_PAGE_SIZE,
blockpool->dma_flags);
}
vxge_hal_trace_log_pool("<== %s:%s:%d Result: 0",
__FILE__, __func__, __LINE__);
}
/*
* __hal_blockpool_blocks_remove - Free additional blocks
* @blockpool: Block pool.
*
* Frees additional blocks over maximum from the block pool
*/
static inline void
__hal_blockpool_blocks_remove(
__hal_blockpool_t * blockpool)
{
vxge_list_t *p, *n;
__hal_device_t *hldev;
vxge_assert(blockpool != NULL);
hldev = (__hal_device_t *) blockpool->hldev;
vxge_hal_trace_log_pool("==> %s:%s:%d",
__FILE__, __func__, __LINE__);
vxge_hal_trace_log_pool("blockpool = 0x"VXGE_OS_STXFMT,
(ptr_t) blockpool);
#if defined(VXGE_HAL_BP_POST)
vxge_os_spin_lock(&blockpool->pool_lock);
#elif defined(VXGE_HAL_BP_POST_IRQ)
vxge_os_spin_lock_irq(&blockpool->pool_lock, flags);
#endif
vxge_list_for_each_safe(p, n, &blockpool->free_block_list) {
if (blockpool->pool_size < blockpool->pool_max)
break;
vxge_os_dma_unmap(
((__hal_device_t *) blockpool->hldev)->header.pdev,
((__hal_blockpool_entry_t *) p)->dma_handle,
((__hal_blockpool_entry_t *) p)->dma_addr,
((__hal_blockpool_entry_t *) p)->length,
VXGE_OS_DMA_DIR_BIDIRECTIONAL);
vxge_os_dma_free(
((__hal_device_t *) blockpool->hldev)->header.pdev,
((__hal_blockpool_entry_t *) p)->memblock,
((__hal_blockpool_entry_t *) p)->length,
blockpool->dma_flags,
&((__hal_blockpool_entry_t *) p)->dma_handle,
&((__hal_blockpool_entry_t *) p)->acc_handle);
vxge_list_remove(&((__hal_blockpool_entry_t *) p)->item);
vxge_list_insert(p, &blockpool->free_entry_list);
blockpool->pool_size--;
}
#if defined(VXGE_HAL_BP_POST)
vxge_os_spin_unlock(&blockpool->pool_lock);
#elif defined(VXGE_HAL_BP_POST_IRQ)
vxge_os_spin_unlock_irq(&blockpool->pool_lock, flags);
#endif
vxge_hal_trace_log_pool("<== %s:%s:%d Result: 0",
__FILE__, __func__, __LINE__);
}
/*
* vxge_hal_blockpool_block_add - callback for vxge_os_dma_malloc_async
* @devh: HAL device handle.
* @block_addr: Virtual address of the block
* @length: Length of the block.
* @p_dma_h: Physical address of the block
* @acc_handle: DMA acc handle
*
* Adds a block to block pool
*/
void
vxge_hal_blockpool_block_add(
vxge_hal_device_h devh,
void *block_addr,
u32 length,
pci_dma_h * dma_h,
pci_dma_acc_h * acc_handle)
{
__hal_blockpool_t *blockpool;
__hal_blockpool_entry_t *entry;
__hal_device_t *hldev;
dma_addr_t dma_addr;
vxge_hal_status_e status;
u32 req_out;
vxge_assert(devh != NULL);
hldev = (__hal_device_t *) devh;
vxge_hal_trace_log_pool("==> %s:%s:%d",
__FILE__, __func__, __LINE__);
vxge_hal_trace_log_pool("devh = 0x"VXGE_OS_STXFMT", length = %d, "
"block_addr = 0x"VXGE_OS_STXFMT", dma_h = 0x"VXGE_OS_STXFMT", "
"acc_handle = 0x"VXGE_OS_STXFMT, (ptr_t) devh, length,
(ptr_t) block_addr, (ptr_t) dma_h, (ptr_t) acc_handle);
blockpool = &hldev->block_pool;
if (block_addr == NULL) {
#if defined(VXGE_HAL_BP_POST)
vxge_os_spin_lock(&blockpool->pool_lock);
#elif defined(VXGE_HAL_BP_POST_IRQ)
vxge_os_spin_lock_irq(&blockpool->pool_lock, flags);
#endif
blockpool->req_out--;
#if defined(VXGE_HAL_BP_POST)
vxge_os_spin_unlock(&blockpool->pool_lock);
#elif defined(VXGE_HAL_BP_POST_IRQ)
vxge_os_spin_unlock_irq(&blockpool->pool_lock, flags);
#endif
vxge_hal_trace_log_pool("<== %s:%s:%d Result: 1",
__FILE__, __func__, __LINE__);
return;
}
dma_addr = vxge_os_dma_map(hldev->header.pdev,
*dma_h,
block_addr,
length,
VXGE_OS_DMA_DIR_BIDIRECTIONAL,
blockpool->dma_flags);
if (dma_addr == VXGE_OS_INVALID_DMA_ADDR) {
vxge_os_dma_free(hldev->header.pdev,
block_addr,
length,
blockpool->dma_flags,
dma_h,
acc_handle);
#if defined(VXGE_HAL_BP_POST)
vxge_os_spin_lock(&blockpool->pool_lock);
#elif defined(VXGE_HAL_BP_POST_IRQ)
vxge_os_spin_lock_irq(&blockpool->pool_lock, flags);
#endif
blockpool->req_out--;
#if defined(VXGE_HAL_BP_POST)
vxge_os_spin_unlock(&blockpool->pool_lock);
#elif defined(VXGE_HAL_BP_POST_IRQ)
vxge_os_spin_unlock_irq(&blockpool->pool_lock, flags);
#endif
vxge_hal_trace_log_pool("<== %s:%s:%d Result: 1",
__FILE__, __func__, __LINE__);
return;
}
#if defined(VXGE_HAL_BP_POST)
vxge_os_spin_lock(&blockpool->pool_lock);
#elif defined(VXGE_HAL_BP_POST_IRQ)
vxge_os_spin_lock_irq(&blockpool->pool_lock, flags);
#endif
entry = (__hal_blockpool_entry_t *)
vxge_list_first_get(&blockpool->free_entry_list);
if (entry == NULL) {
entry = (__hal_blockpool_entry_t *) vxge_os_malloc(
hldev->header.pdev,
sizeof(__hal_blockpool_entry_t));
} else {
vxge_list_remove(&entry->item);
}
if (entry != NULL) {
entry->length = length;
entry->memblock = block_addr;
entry->dma_addr = dma_addr;
entry->acc_handle = *acc_handle;
entry->dma_handle = *dma_h;
vxge_list_insert(&entry->item, &blockpool->free_block_list);
blockpool->pool_size++;
status = VXGE_HAL_OK;
} else {
status = VXGE_HAL_ERR_OUT_OF_MEMORY;
}
blockpool->req_out--;
req_out = blockpool->req_out;
#if defined(VXGE_HAL_BP_POST)
vxge_os_spin_unlock(&blockpool->pool_lock);
#elif defined(VXGE_HAL_BP_POST_IRQ)
vxge_os_spin_unlock_irq(&blockpool->pool_lock, flags);
#endif
if (req_out == 0)
__hal_channel_process_pending_list(devh);
vxge_hal_trace_log_pool("<== %s:%s:%d Result: %d",
__FILE__, __func__, __LINE__, status);
}
/*
* __hal_blockpool_malloc - Allocate a memory block from pool
* @devh: HAL device handle.
* @size: Length of the block.
* @dma_addr: Buffer to return DMA Address of the block.
* @dma_handle: Buffer to return DMA handle of the block.
* @acc_handle: Buffer to return DMA acc handle
*
*
* Allocates a block of memory of given size, either from block pool
* or by calling vxge_os_dma_malloc()
*/
void *
__hal_blockpool_malloc(vxge_hal_device_h devh,
u32 size,
dma_addr_t *dma_addr,
pci_dma_h *dma_handle,
pci_dma_acc_h *acc_handle)
{
__hal_blockpool_entry_t *entry;
__hal_blockpool_t *blockpool;
__hal_device_t *hldev;
void *memblock = NULL;
vxge_assert(devh != NULL);
hldev = (__hal_device_t *) devh;
vxge_hal_trace_log_pool("==> %s:%s:%d",
__FILE__, __func__, __LINE__);
vxge_hal_trace_log_pool(
"devh = 0x"VXGE_OS_STXFMT", size = %d, "
"dma_addr = 0x"VXGE_OS_STXFMT", dma_handle = 0x"VXGE_OS_STXFMT", "
"acc_handle = 0x"VXGE_OS_STXFMT, (ptr_t) devh, size,
(ptr_t) dma_addr, (ptr_t) dma_handle, (ptr_t) acc_handle);
blockpool = &((__hal_device_t *) devh)->block_pool;
if (size != blockpool->block_size) {
memblock = vxge_os_dma_malloc(
((__hal_device_t *) devh)->header.pdev,
size,
blockpool->dma_flags |
VXGE_OS_DMA_CACHELINE_ALIGNED,
dma_handle,
acc_handle);
if (memblock == NULL) {
vxge_hal_trace_log_pool("<== %s:%s:%d Result: %d",
__FILE__, __func__, __LINE__,
VXGE_HAL_ERR_OUT_OF_MEMORY);
return (NULL);
}
*dma_addr = vxge_os_dma_map(
((__hal_device_t *) devh)->header.pdev,
*dma_handle,
memblock,
size,
VXGE_OS_DMA_DIR_BIDIRECTIONAL,
blockpool->dma_flags);
if (*dma_addr == VXGE_OS_INVALID_DMA_ADDR) {
vxge_os_dma_free(((__hal_device_t *) devh)->header.pdev,
memblock,
size,
blockpool->dma_flags |
VXGE_OS_DMA_CACHELINE_ALIGNED,
dma_handle,
acc_handle);
vxge_hal_trace_log_pool("<== %s:%s:%d Result: %d",
__FILE__, __func__, __LINE__,
VXGE_HAL_ERR_OUT_OF_MEMORY);
return (NULL);
}
} else {
#if defined(VXGE_HAL_BP_POST)
vxge_os_spin_lock(&blockpool->pool_lock);
#elif defined(VXGE_HAL_BP_POST_IRQ)
vxge_os_spin_lock_irq(&blockpool->pool_lock, flags);
#endif
entry = (__hal_blockpool_entry_t *)
vxge_list_first_get(&blockpool->free_block_list);
if (entry != NULL) {
vxge_list_remove(&entry->item);
*dma_addr = entry->dma_addr;
*dma_handle = entry->dma_handle;
*acc_handle = entry->acc_handle;
memblock = entry->memblock;
vxge_list_insert(&entry->item,
&blockpool->free_entry_list);
blockpool->pool_size--;
}
#if defined(VXGE_HAL_BP_POST)
vxge_os_spin_unlock(&blockpool->pool_lock);
#elif defined(VXGE_HAL_BP_POST_IRQ)
vxge_os_spin_unlock_irq(&blockpool->pool_lock, flags);
#endif
if (memblock != NULL)
__hal_blockpool_blocks_add(blockpool);
}
vxge_hal_trace_log_pool("<== %s:%s:%d Result: %d",
__FILE__, __func__, __LINE__, !memblock);
return (memblock);
}
/*
* __hal_blockpool_free - Frees the memory allcoated with __hal_blockpool_malloc
* @devh: HAL device handle.
* @memblock: Virtual address block
* @size: Length of the block.
* @dma_addr: DMA Address of the block.
* @dma_handle: DMA handle of the block.
* @acc_handle: DMA acc handle
*
*
* Frees the memory allocated with __hal_blockpool_malloc to blockpool or system
*/
void
__hal_blockpool_free(vxge_hal_device_h devh,
void *memblock,
u32 size,
dma_addr_t *dma_addr,
pci_dma_h *dma_handle,
pci_dma_acc_h *acc_handle)
{
__hal_blockpool_entry_t *entry;
__hal_blockpool_t *blockpool;
__hal_device_t *hldev;
vxge_hal_status_e status = VXGE_HAL_OK;
vxge_assert(devh != NULL);
hldev = (__hal_device_t *) devh;
vxge_hal_trace_log_pool("==> %s:%s:%d",
__FILE__, __func__, __LINE__);
vxge_hal_trace_log_pool("devh = 0x"VXGE_OS_STXFMT", size = %d, "
"dma_addr = 0x"VXGE_OS_STXFMT", dma_handle = 0x"VXGE_OS_STXFMT", "
"acc_handle = 0x"VXGE_OS_STXFMT, (ptr_t) devh, size,
(ptr_t) dma_addr, (ptr_t) dma_handle, (ptr_t) acc_handle);
blockpool = &((__hal_device_t *) devh)->block_pool;
if (size != blockpool->block_size) {
vxge_os_dma_unmap(((__hal_device_t *) devh)->header.pdev,
*dma_handle,
*dma_addr,
size,
VXGE_OS_DMA_DIR_BIDIRECTIONAL);
vxge_os_dma_free(((__hal_device_t *) devh)->header.pdev,
memblock,
size,
blockpool->dma_flags |
VXGE_OS_DMA_CACHELINE_ALIGNED,
dma_handle,
acc_handle);
} else {
#if defined(VXGE_HAL_BP_POST)
vxge_os_spin_lock(&blockpool->pool_lock);
#elif defined(VXGE_HAL_BP_POST_IRQ)
vxge_os_spin_lock_irq(&blockpool->pool_lock, flags);
#endif
entry = (__hal_blockpool_entry_t *)
vxge_list_first_get(&blockpool->free_entry_list);
if (entry == NULL) {
entry = (__hal_blockpool_entry_t *) vxge_os_malloc(
((__hal_device_t *) devh)->header.pdev,
sizeof(__hal_blockpool_entry_t));
} else {
vxge_list_remove(&entry->item);
}
if (entry != NULL) {
entry->length = size;
entry->memblock = memblock;
entry->dma_addr = *dma_addr;
entry->acc_handle = *acc_handle;
entry->dma_handle = *dma_handle;
vxge_list_insert(&entry->item,
&blockpool->free_block_list);
blockpool->pool_size++;
status = VXGE_HAL_OK;
} else {
status = VXGE_HAL_ERR_OUT_OF_MEMORY;
}
#if defined(VXGE_HAL_BP_POST)
vxge_os_spin_unlock(&blockpool->pool_lock);
#elif defined(VXGE_HAL_BP_POST_IRQ)
vxge_os_spin_unlock_irq(&blockpool->pool_lock, flags);
#endif
if (status == VXGE_HAL_OK)
__hal_blockpool_blocks_remove(blockpool);
}
vxge_hal_trace_log_pool("<== %s:%s:%d Result: %d",
__FILE__, __func__, __LINE__, status);
}
/*
* __hal_blockpool_block_allocate - Allocates a block from block pool
* @hldev: Hal device
* @size: Size of the block to be allocated
*
* This function allocates a block from block pool or from the system
*/
__hal_blockpool_entry_t *
__hal_blockpool_block_allocate(vxge_hal_device_h devh,
u32 size)
{
__hal_blockpool_entry_t *entry = NULL;
__hal_device_t *hldev;
__hal_blockpool_t *blockpool;
vxge_assert(devh != NULL);
hldev = (__hal_device_t *) devh;
vxge_hal_trace_log_pool("==> %s:%s:%d",
__FILE__, __func__, __LINE__);
vxge_hal_trace_log_pool("devh = 0x"VXGE_OS_STXFMT", size = %d",
(ptr_t) devh, size);
blockpool = &((__hal_device_t *) devh)->block_pool;
if (size == blockpool->block_size) {
#if defined(VXGE_HAL_BP_POST)
vxge_os_spin_lock(&blockpool->pool_lock);
#elif defined(VXGE_HAL_BP_POST_IRQ)
vxge_os_spin_lock_irq(&blockpool->pool_lock, flags);
#endif
entry = (__hal_blockpool_entry_t *)
vxge_list_first_get(&blockpool->free_block_list);
if (entry != NULL) {
vxge_list_remove(&entry->item);
blockpool->pool_size--;
}
#if defined(VXGE_HAL_BP_POST)
vxge_os_spin_unlock(&blockpool->pool_lock);
#elif defined(VXGE_HAL_BP_POST_IRQ)
vxge_os_spin_unlock_irq(&blockpool->pool_lock, flags);
#endif
}
if (entry != NULL)
__hal_blockpool_blocks_add(blockpool);
vxge_hal_trace_log_pool("<== %s:%s:%d Result: %d",
__FILE__, __func__, __LINE__, !entry);
return (entry);
}
/*
* __hal_blockpool_block_free - Frees a block from block pool
* @devh: Hal device
* @entry: Entry of block to be freed
*
* This function frees a block from block pool
*/
void
__hal_blockpool_block_free(vxge_hal_device_h devh,
__hal_blockpool_entry_t *entry)
{
__hal_device_t *hldev;
__hal_blockpool_t *blockpool;
vxge_assert(devh != NULL);
hldev = (__hal_device_t *) devh;
vxge_hal_trace_log_pool("==> %s:%s:%d",
__FILE__, __func__, __LINE__);
vxge_hal_trace_log_pool(
"devh = 0x"VXGE_OS_STXFMT", entry = 0x"VXGE_OS_STXFMT,
(ptr_t) devh, (ptr_t) entry);
blockpool = &((__hal_device_t *) devh)->block_pool;
if (entry->length == blockpool->block_size) {
#if defined(VXGE_HAL_BP_POST)
vxge_os_spin_lock(&blockpool->pool_lock);
#elif defined(VXGE_HAL_BP_POST_IRQ)
vxge_os_spin_lock_irq(&blockpool->pool_lock, flags);
#endif
vxge_list_insert(&entry->item, &blockpool->free_block_list);
blockpool->pool_size++;
#if defined(VXGE_HAL_BP_POST)
vxge_os_spin_unlock(&blockpool->pool_lock);
#elif defined(VXGE_HAL_BP_POST_IRQ)
vxge_os_spin_unlock_irq(&blockpool->pool_lock, flags);
#endif
}
__hal_blockpool_blocks_remove(blockpool);
vxge_hal_trace_log_pool("<== %s:%s:%d Result: 0",
__FILE__, __func__, __LINE__);
}
/*
* __hal_blockpool_list_allocate - Allocate blocks from block pool
* @devh: Hal device
* @blocklist: List into which the allocated blocks to be inserted
* @count: Number of blocks to be allocated
*
* This function allocates a register from the register pool
*/
vxge_hal_status_e
__hal_blockpool_list_allocate(
vxge_hal_device_h devh,
vxge_list_t *blocklist,
u32 count)
{
u32 i;
__hal_device_t *hldev;
__hal_blockpool_t *blockpool;
__hal_blockpool_entry_t *block_entry;
vxge_hal_status_e status = VXGE_HAL_OK;
vxge_assert(devh != NULL);
hldev = (__hal_device_t *) devh;
vxge_hal_trace_log_pool("==> %s:%s:%d",
__FILE__, __func__, __LINE__);
vxge_hal_trace_log_pool("devh = 0x"VXGE_OS_STXFMT", blocklist = "
"0x"VXGE_OS_STXFMT", count = %d", (ptr_t) devh,
(ptr_t) blocklist, count);
blockpool = &((__hal_device_t *) devh)->block_pool;
if (blocklist == NULL) {
vxge_hal_err_log_pool(
"null pointer passed blockpool = 0x"VXGE_OS_STXFMT", "
"blocklist = 0x"VXGE_OS_STXFMT, (ptr_t) blockpool,
(ptr_t) blocklist);
vxge_hal_trace_log_pool("<== %s:%s:%d Result: 1",
__FILE__, __func__, __LINE__);
return (VXGE_HAL_FAIL);
}
#if defined(VXGE_HAL_BP_POST)
vxge_os_spin_lock(&blockpool->pool_lock);
#elif defined(VXGE_HAL_BP_POST_IRQ)
vxge_os_spin_lock_irq(&blockpool->pool_lock, flags);
#endif
vxge_list_init(blocklist);
for (i = 0; i < count; i++) {
block_entry = (__hal_blockpool_entry_t *)
vxge_list_first_get(&blockpool->free_block_list);
if (block_entry == NULL)
break;
vxge_list_remove(&block_entry->item);
vxge_os_memzero(block_entry->memblock, blockpool->block_size);
vxge_list_insert(&block_entry->item, blocklist);
blockpool->pool_size++;
}
#if defined(VXGE_HAL_BP_POST)
vxge_os_spin_unlock(&blockpool->pool_lock);
#elif defined(VXGE_HAL_BP_POST_IRQ)
vxge_os_spin_unlock_irq(&blockpool->pool_lock, flags);
#endif
if (i < count) {
vxge_hal_err_log_pool("%s:%d Blockpool out of blocks",
__FILE__, __LINE__);
vxge_assert(FALSE);
__hal_blockpool_list_free(blockpool, blocklist);
status = VXGE_HAL_ERR_OUT_OF_MEMORY;
}
__hal_blockpool_blocks_add(blockpool);
vxge_hal_trace_log_pool("<== %s:%s:%d Result: %d",
__FILE__, __func__, __LINE__, status);
return (status);
}
/*
* __hal_blockpool_list_free - Free a list of blocks from block pool
* @devh: Hal device
* @blocklist: List of blocks to be freed
*
* This function frees a list of blocks to the block pool
*/
void
__hal_blockpool_list_free(
vxge_hal_device_h devh,
vxge_list_t *blocklist)
{
__hal_device_t *hldev;
__hal_blockpool_t *blockpool;
__hal_blockpool_entry_t *block_entry;
vxge_assert(devh != NULL);
hldev = (__hal_device_t *) devh;
vxge_hal_trace_log_pool("==> %s:%s:%d",
__FILE__, __func__, __LINE__);
vxge_hal_trace_log_pool(
"devh = 0x"VXGE_OS_STXFMT", blocklist = 0x"VXGE_OS_STXFMT,
(ptr_t) devh, (ptr_t) blocklist);
blockpool = &((__hal_device_t *) devh)->block_pool;
if (blocklist == NULL) {
vxge_hal_err_log_pool(
"null pointer passed blockpool = 0x"VXGE_OS_STXFMT", "
"blocklist = 0x"VXGE_OS_STXFMT, (ptr_t) blockpool,
(ptr_t) blocklist);
vxge_hal_trace_log_pool("<== %s:%s:%d Result: 1",
__FILE__, __func__, __LINE__);
return;
}
#if defined(VXGE_HAL_BP_POST)
vxge_os_spin_lock(&blockpool->pool_lock);
#elif defined(VXGE_HAL_BP_POST_IRQ)
vxge_os_spin_lock_irq(&blockpool->pool_lock, flags);
#endif
while ((block_entry = (__hal_blockpool_entry_t *)
vxge_list_first_get(blocklist)) != NULL) {
vxge_list_remove(&block_entry->item);
vxge_list_insert(&block_entry->item,
&blockpool->free_block_list);
blockpool->pool_size++;
}
#if defined(VXGE_HAL_BP_POST)
vxge_os_spin_unlock(&blockpool->pool_lock);
#elif defined(VXGE_HAL_BP_POST_IRQ)
vxge_os_spin_unlock_irq(&blockpool->pool_lock, flags);
#endif
__hal_blockpool_blocks_remove(blockpool);
vxge_hal_trace_log_pool("<== %s:%s:%d Result: 0",
__FILE__, __func__, __LINE__);
}