/**
* xge_hal_driver_initialize - Initialize HAL.
* @config: HAL configuration, see xge_hal_driver_config_t{}.
* @uld_callbacks: Upper-layer driver callbacks, e.g. link-up.
*
* HAL initialization entry point. Not to confuse with device initialization
* (note that HAL "contains" zero or more Xframe devices).
*
* Returns: XGE_HAL_OK - success;
* XGE_HAL_ERR_BAD_DRIVER_CONFIG - Driver configuration params invalid.
*
* See also: xge_hal_device_initialize(), xge_hal_status_e{},
* xge_hal_uld_cbs_t{}.
*/
xge_hal_status_e
xge_hal_driver_initialize(xge_hal_driver_config_t *config,
xge_hal_uld_cbs_t *uld_callbacks)
{
xge_hal_status_e status;
g_xge_hal_driver = &g_driver;
xge_hal_driver_debug_module_mask_set(XGE_DEBUG_MODULE_MASK_DEF);
xge_hal_driver_debug_level_set(XGE_DEBUG_LEVEL_DEF);
#ifdef XGE_HAL_DEBUG_BAR0_OFFSET
xge_hal_driver_bar0_offset_check();
#endif
#ifdef XGE_TRACE_INTO_CIRCULAR_ARR
if (config->tracebuf_size == 0)
/*
* Trace buffer implementation is not lock protected.
* The only harm to expect is memcpy() to go beyond of
* allowed boundaries. To make it safe (driver-wise),
* we pre-allocate needed number of extra bytes.
*/
config->tracebuf_size = XGE_HAL_DEF_CIRCULAR_ARR +
XGE_OS_TRACE_MSGBUF_MAX;
#endif
status = __hal_driver_config_check(config);
if (status != XGE_HAL_OK)
return status;
xge_os_memzero(g_xge_hal_driver, sizeof(xge_hal_driver_t));
/* apply config */
xge_os_memcpy(&g_xge_hal_driver->config, config,
sizeof(xge_hal_driver_config_t));
/* apply ULD callbacks */
xge_os_memcpy(&g_xge_hal_driver->uld_callbacks, uld_callbacks,
sizeof(xge_hal_uld_cbs_t));
g_xge_hal_driver->is_initialized = 1;
#ifdef XGE_TRACE_INTO_CIRCULAR_ARR
g_tracebuf.size = config->tracebuf_size;
g_tracebuf.data = (char *)xge_os_malloc(NULL, g_tracebuf.size);
if (g_tracebuf.data == NULL) {
xge_os_printf("cannot allocate trace buffer!");
return XGE_HAL_ERR_OUT_OF_MEMORY;
}
/* timestamps disabled by default */
g_tracebuf.timestamp = config->tracebuf_timestamp_en;
if (g_tracebuf.timestamp) {
xge_os_timestamp(g_tracebuf.msg);
g_tracebuf.msgbuf_max = XGE_OS_TRACE_MSGBUF_MAX -
xge_os_strlen(g_tracebuf.msg);
} else
g_tracebuf.msgbuf_max = XGE_OS_TRACE_MSGBUF_MAX;
g_tracebuf.offset = 0;
*g_tracebuf.msg = 0;
xge_os_memzero(g_tracebuf.data, g_tracebuf.size);
g_xge_os_tracebuf = &g_tracebuf;
dmesg = g_tracebuf.data;
*dmesg = 0;
#endif
return XGE_HAL_OK;
}
/*
* xge_hal_mempool_create
* @memblock_size:
* @items_initial:
* @items_max:
* @item_size:
* @item_func:
*
* This function will create memory pool object. Pool may grow but will
* never shrink. Pool consists of number of dynamically allocated blocks
* with size enough to hold %items_initial number of items. Memory is
* DMA-able but client must map/unmap before interoperating with the device.
* See also: xge_os_dma_map(), xge_hal_dma_unmap(), xge_hal_status_e{}.
*/
xge_hal_mempool_t*
__hal_mempool_create(pci_dev_h pdev, int memblock_size, int item_size,
int items_priv_size, int items_initial, int items_max,
xge_hal_mempool_item_f item_func_alloc,
xge_hal_mempool_item_f item_func_free, void *userdata)
{
xge_hal_status_e status;
int memblocks_to_allocate;
xge_hal_mempool_t *mempool;
int allocated;
if (memblock_size < item_size) {
xge_debug_mm(XGE_ERR,
"memblock_size %d < item_size %d: misconfiguration",
memblock_size, item_size);
return NULL;
}
mempool = (xge_hal_mempool_t *) \
xge_os_malloc(pdev, sizeof(xge_hal_mempool_t));
if (mempool == NULL) {
xge_debug_mm(XGE_ERR, "mempool allocation failure");
return NULL;
}
xge_os_memzero(mempool, sizeof(xge_hal_mempool_t));
mempool->pdev = pdev;
mempool->memblock_size = memblock_size;
mempool->items_max = items_max;
mempool->items_initial = items_initial;
mempool->item_size = item_size;
mempool->items_priv_size = items_priv_size;
mempool->item_func_alloc = item_func_alloc;
mempool->item_func_free = item_func_free;
mempool->userdata = userdata;
mempool->memblocks_allocated = 0;
mempool->items_per_memblock = memblock_size / item_size;
mempool->memblocks_max = (items_max + mempool->items_per_memblock - 1) /
mempool->items_per_memblock;
/* allocate array of memblocks */
mempool->memblocks_arr = (void ** ) xge_os_malloc(mempool->pdev,
sizeof(void*) * mempool->memblocks_max);
if (mempool->memblocks_arr == NULL) {
xge_debug_mm(XGE_ERR, "memblocks_arr allocation failure");
__hal_mempool_destroy(mempool);
return NULL;
}
xge_os_memzero(mempool->memblocks_arr,
sizeof(void*) * mempool->memblocks_max);
/* allocate array of private parts of items per memblocks */
mempool->memblocks_priv_arr = (void **) xge_os_malloc(mempool->pdev,
sizeof(void*) * mempool->memblocks_max);
if (mempool->memblocks_priv_arr == NULL) {
xge_debug_mm(XGE_ERR, "memblocks_priv_arr allocation failure");
__hal_mempool_destroy(mempool);
return NULL;
}
xge_os_memzero(mempool->memblocks_priv_arr,
sizeof(void*) * mempool->memblocks_max);
/* allocate array of memblocks DMA objects */
mempool->memblocks_dma_arr =
(xge_hal_mempool_dma_t *) xge_os_malloc(mempool->pdev,
sizeof(xge_hal_mempool_dma_t) * mempool->memblocks_max);
if (mempool->memblocks_dma_arr == NULL) {
xge_debug_mm(XGE_ERR, "memblocks_dma_arr allocation failure");
__hal_mempool_destroy(mempool);
return NULL;
}
xge_os_memzero(mempool->memblocks_dma_arr,
sizeof(xge_hal_mempool_dma_t) * mempool->memblocks_max);
/* allocate hash array of items */
mempool->items_arr = (void **) xge_os_malloc(mempool->pdev,
sizeof(void*) * mempool->items_max);
if (mempool->items_arr == NULL) {
xge_debug_mm(XGE_ERR, "items_arr allocation failure");
__hal_mempool_destroy(mempool);
return NULL;
}
xge_os_memzero(mempool->items_arr, sizeof(void *) * mempool->items_max);
mempool->shadow_items_arr = (void **) xge_os_malloc(mempool->pdev,
sizeof(void*) * mempool->items_max);
if (mempool->shadow_items_arr == NULL) {
xge_debug_mm(XGE_ERR, "shadow_items_arr allocation failure");
__hal_mempool_destroy(mempool);
return NULL;
}
xge_os_memzero(mempool->shadow_items_arr,
sizeof(void *) * mempool->items_max);
/* calculate initial number of memblocks */
memblocks_to_allocate = (mempool->items_initial +
mempool->items_per_memblock - 1) /
mempool->items_per_memblock;
xge_debug_mm(XGE_TRACE, "allocating %d memblocks, "
"%d items per memblock", memblocks_to_allocate,
mempool->items_per_memblock);
/* pre-allocate the mempool */
status = __hal_mempool_grow(mempool, memblocks_to_allocate, &allocated);
xge_os_memcpy(mempool->shadow_items_arr, mempool->items_arr,
sizeof(void*) * mempool->items_max);
if (status != XGE_HAL_OK) {
xge_debug_mm(XGE_ERR, "mempool_grow failure");
__hal_mempool_destroy(mempool);
return NULL;
}
xge_debug_mm(XGE_TRACE,
"total: allocated %dk of DMA-capable memory",
mempool->memblock_size * allocated / 1024);
return mempool;
}
/*
* __hal_mempool_grow
*
* Will resize mempool up to %num_allocate value.
*/
xge_hal_status_e
__hal_mempool_grow(xge_hal_mempool_t *mempool, int num_allocate,
int *num_allocated)
{
int i, first_time = mempool->memblocks_allocated == 0 ? 1 : 0;
int n_items = mempool->items_per_memblock;
*num_allocated = 0;
if ((mempool->memblocks_allocated + num_allocate) >
mempool->memblocks_max) {
xge_debug_mm(XGE_ERR, "%s",
"__hal_mempool_grow: can grow anymore");
return XGE_HAL_ERR_OUT_OF_MEMORY;
}
for (i = mempool->memblocks_allocated;
i < mempool->memblocks_allocated + num_allocate; i++) {
int j;
int is_last =
((mempool->memblocks_allocated+num_allocate-1) == i);
xge_hal_mempool_dma_t *dma_object =
mempool->memblocks_dma_arr + i;
void *the_memblock;
int dma_flags;
dma_flags = XGE_OS_DMA_CACHELINE_ALIGNED;
#ifdef XGE_HAL_DMA_DTR_CONSISTENT
dma_flags |= XGE_OS_DMA_CONSISTENT;
#else
dma_flags |= XGE_OS_DMA_STREAMING;
#endif
/* allocate DMA-capable memblock */
mempool->memblocks_arr[i] = xge_os_dma_malloc(mempool->pdev,
mempool->memblock_size,
dma_flags,
&dma_object->handle,
&dma_object->acc_handle);
if (mempool->memblocks_arr[i] == NULL) {
xge_debug_mm(XGE_ERR,
"memblock[%d]: out of DMA memory", i);
return XGE_HAL_ERR_OUT_OF_MEMORY;
}
xge_os_memzero(mempool->memblocks_arr[i],
mempool->memblock_size);
the_memblock = mempool->memblocks_arr[i];
/* allocate memblock's private part. Each DMA memblock
* has a space allocated for item's private usage upon
* mempool's user request. Each time mempool grows, it will
* allocate new memblock and its private part at once.
* This helps to minimize memory usage a lot. */
mempool->memblocks_priv_arr[i] = xge_os_malloc(mempool->pdev,
mempool->items_priv_size * n_items);
if (mempool->memblocks_priv_arr[i] == NULL) {
xge_os_dma_free(mempool->pdev,
the_memblock,
mempool->memblock_size,
&dma_object->acc_handle,
&dma_object->handle);
xge_debug_mm(XGE_ERR,
"memblock_priv[%d]: out of virtual memory, "
"requested %d(%d:%d) bytes", i,
mempool->items_priv_size * n_items,
mempool->items_priv_size, n_items);
return XGE_HAL_ERR_OUT_OF_MEMORY;
}
xge_os_memzero(mempool->memblocks_priv_arr[i],
mempool->items_priv_size * n_items);
/* map memblock to physical memory */
dma_object->addr = xge_os_dma_map(mempool->pdev,
dma_object->handle,
the_memblock,
mempool->memblock_size,
XGE_OS_DMA_DIR_BIDIRECTIONAL,
#ifdef XGE_HAL_DMA_DTR_CONSISTENT
XGE_OS_DMA_CONSISTENT
#else
XGE_OS_DMA_STREAMING
#endif
);
if (dma_object->addr == XGE_OS_INVALID_DMA_ADDR) {
xge_os_free(mempool->pdev, mempool->memblocks_priv_arr[i],
mempool->items_priv_size *
n_items);
xge_os_dma_free(mempool->pdev,
the_memblock,
mempool->memblock_size,
&dma_object->acc_handle,
&dma_object->handle);
return XGE_HAL_ERR_OUT_OF_MAPPING;
}
/* fill the items hash array */
for (j=0; j<n_items; j++) {
int index = i*n_items + j;
if (first_time && index >= mempool->items_initial) {
break;
}
mempool->items_arr[index] =
((char *)the_memblock + j*mempool->item_size);
/* let caller to do more job on each item */
if (mempool->item_func_alloc != NULL) {
xge_hal_status_e status;
if ((status = mempool->item_func_alloc(
mempool,
the_memblock,
i,
dma_object,
mempool->items_arr[index],
index,
is_last,
mempool->userdata)) != XGE_HAL_OK) {
if (mempool->item_func_free != NULL) {
int k;
for (k=0; k<j; k++) {
index =i*n_items + k;
(void)mempool->item_func_free(
mempool, the_memblock,
i, dma_object,
mempool->items_arr[index],
index, is_last,
mempool->userdata);
}
}
xge_os_free(mempool->pdev,
mempool->memblocks_priv_arr[i],
mempool->items_priv_size *
n_items);
xge_os_dma_unmap(mempool->pdev,
dma_object->handle,
dma_object->addr,
mempool->memblock_size,
XGE_OS_DMA_DIR_BIDIRECTIONAL);
xge_os_dma_free(mempool->pdev,
the_memblock,
mempool->memblock_size,
&dma_object->acc_handle,
&dma_object->handle);
return status;
}
}
mempool->items_current = index + 1;
}
xge_debug_mm(XGE_TRACE,
"memblock%d: allocated %dk, vaddr 0x"XGE_OS_LLXFMT", "
"dma_addr 0x"XGE_OS_LLXFMT, i, mempool->memblock_size / 1024,
(unsigned long long)(ulong_t)mempool->memblocks_arr[i],
(unsigned long long)dma_object->addr);
(*num_allocated)++;
if (first_time && mempool->items_current ==
mempool->items_initial) {
break;
}
}
/* increment actual number of allocated memblocks */
mempool->memblocks_allocated += *num_allocated;
return XGE_HAL_OK;
}
/*
* __hal_stats_initialize
* @stats: xge_hal_stats_t structure that contains, in particular,
* Xframe hw stat counters.
* @devh: HAL device handle.
*
* Initialize per-device statistics object.
* See also: xge_hal_stats_getinfo(), xge_hal_status_e{}.
*/
xge_hal_status_e
__hal_stats_initialize (xge_hal_stats_t *stats, xge_hal_device_h devh)
{
int dma_flags;
xge_hal_device_t *hldev = (xge_hal_device_t*)devh;
xge_assert(!stats->is_initialized);
dma_flags = XGE_OS_DMA_CACHELINE_ALIGNED;
#ifdef XGE_HAL_DMA_STATS_CONSISTENT
dma_flags |= XGE_OS_DMA_CONSISTENT;
#else
dma_flags |= XGE_OS_DMA_STREAMING;
#endif
if (xge_hal_device_check_id(hldev) != XGE_HAL_CARD_TITAN) {
stats->hw_info =
(xge_hal_stats_hw_info_t *) xge_os_dma_malloc(
hldev->pdev,
sizeof(xge_hal_stats_hw_info_t),
dma_flags,
&stats->hw_info_dmah,
&stats->hw_info_dma_acch);
if (stats->hw_info == NULL) {
xge_debug_stats(XGE_ERR, "%s", "can not DMA alloc");
return XGE_HAL_ERR_OUT_OF_MEMORY;
}
xge_os_memzero(stats->hw_info,
sizeof(xge_hal_stats_hw_info_t));
xge_os_memzero(&stats->hw_info_saved,
sizeof(xge_hal_stats_hw_info_t));
xge_os_memzero(&stats->hw_info_latest,
sizeof(xge_hal_stats_hw_info_t));
stats->dma_addr = xge_os_dma_map(hldev->pdev,
stats->hw_info_dmah,
stats->hw_info,
sizeof(xge_hal_stats_hw_info_t),
XGE_OS_DMA_DIR_FROMDEVICE,
XGE_OS_DMA_CACHELINE_ALIGNED |
#ifdef XGE_HAL_DMA_STATS_CONSISTENT
XGE_OS_DMA_CONSISTENT
#else
XGE_OS_DMA_STREAMING
#endif
);
if (stats->dma_addr == XGE_OS_INVALID_DMA_ADDR) {
xge_debug_stats(XGE_ERR,
"can not map vaddr 0x"XGE_OS_LLXFMT" to DMA",
(unsigned long long)(ulong_t)stats->hw_info);
xge_os_dma_free(hldev->pdev,
stats->hw_info,
sizeof(xge_hal_stats_hw_info_t),
&stats->hw_info_dma_acch,
&stats->hw_info_dmah);
return XGE_HAL_ERR_OUT_OF_MAPPING;
}
}
else {
stats->pcim_info_saved =
(xge_hal_stats_pcim_info_t *)xge_os_malloc(
hldev->pdev, sizeof(xge_hal_stats_pcim_info_t));
if (stats->pcim_info_saved == NULL) {
xge_debug_stats(XGE_ERR, "%s", "can not alloc");
return XGE_HAL_ERR_OUT_OF_MEMORY;
}
stats->pcim_info_latest =
(xge_hal_stats_pcim_info_t *)xge_os_malloc(
hldev->pdev, sizeof(xge_hal_stats_pcim_info_t));
if (stats->pcim_info_latest == NULL) {
xge_os_free(hldev->pdev, stats->pcim_info_saved,
sizeof(xge_hal_stats_pcim_info_t));
xge_debug_stats(XGE_ERR, "%s", "can not alloc");
return XGE_HAL_ERR_OUT_OF_MEMORY;
}
stats->pcim_info =
(xge_hal_stats_pcim_info_t *) xge_os_dma_malloc(
hldev->pdev,
sizeof(xge_hal_stats_pcim_info_t),
dma_flags,
&stats->hw_info_dmah,
&stats->hw_info_dma_acch);
if (stats->pcim_info == NULL) {
xge_os_free(hldev->pdev, stats->pcim_info_saved,
sizeof(xge_hal_stats_pcim_info_t));
xge_os_free(hldev->pdev, stats->pcim_info_latest,
sizeof(xge_hal_stats_pcim_info_t));
xge_debug_stats(XGE_ERR, "%s", "can not DMA alloc");
return XGE_HAL_ERR_OUT_OF_MEMORY;
}
xge_os_memzero(stats->pcim_info,
sizeof(xge_hal_stats_pcim_info_t));
xge_os_memzero(stats->pcim_info_saved,
sizeof(xge_hal_stats_pcim_info_t));
xge_os_memzero(stats->pcim_info_latest,
sizeof(xge_hal_stats_pcim_info_t));
stats->dma_addr = xge_os_dma_map(hldev->pdev,
stats->hw_info_dmah,
stats->pcim_info,
sizeof(xge_hal_stats_pcim_info_t),
XGE_OS_DMA_DIR_FROMDEVICE,
XGE_OS_DMA_CACHELINE_ALIGNED |
#ifdef XGE_HAL_DMA_STATS_CONSISTENT
XGE_OS_DMA_CONSISTENT
#else
XGE_OS_DMA_STREAMING
#endif
);
if (stats->dma_addr == XGE_OS_INVALID_DMA_ADDR) {
xge_debug_stats(XGE_ERR,
"can not map vaddr 0x"XGE_OS_LLXFMT" to DMA",
(unsigned long long)(ulong_t)stats->hw_info);
xge_os_dma_free(hldev->pdev,
stats->pcim_info,
sizeof(xge_hal_stats_pcim_info_t),
&stats->hw_info_dma_acch,
&stats->hw_info_dmah);
xge_os_free(hldev->pdev, stats->pcim_info_saved,
sizeof(xge_hal_stats_pcim_info_t));
xge_os_free(hldev->pdev, stats->pcim_info_latest,
sizeof(xge_hal_stats_pcim_info_t));
return XGE_HAL_ERR_OUT_OF_MAPPING;
}
}
stats->devh = devh;
xge_os_memzero(&stats->sw_dev_info_stats,
sizeof(xge_hal_stats_device_info_t));
stats->is_initialized = 1;
return XGE_HAL_OK;
}
