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qcacmn: Enable wbuff support for WMI

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Register WMI with wbuff for pre-allocation of
skbs. Register at wmi_unified_attach() and
de-register at wmi wmi_unified_detach().

Change-Id: I9d6df1a8480324dd2a258de12672669a8fbe8940
CRs-Fixed: 2313935
This commit is contained in:
Rakshith Suresh Patkar
2018-09-12 16:51:30 +05:30
committed by nshrivas
parent a1860003dd
commit 1f18454889
3 changed files with 76 additions and 13 deletions
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79
wmi/src/wmi_unified.c
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@@ -352,6 +352,16 @@ typedef PREPACK struct {
#define WMI_MIN_HEAD_ROOM 64
/* WBUFF pool sizes for WMI */
/* Allocation of size 256 bytes */
#define WMI_WBUFF_POOL_0_SIZE 128
/* Allocation of size 512 bytes */
#define WMI_WBUFF_POOL_1_SIZE 16
/* Allocation of size 1024 bytes */
#define WMI_WBUFF_POOL_2_SIZE 8
/* Allocation of size 2048 bytes */
#define WMI_WBUFF_POOL_3_SIZE 8
#ifdef WMI_INTERFACE_EVENT_LOGGING
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 3, 0))
/* TODO Cleanup this backported function */
@@ -1462,10 +1472,13 @@ wmi_buf_alloc_debug(wmi_unified_t wmi_handle, uint32_t len, uint8_t *file_name,
return NULL;
}
wmi_buf = qdf_nbuf_alloc_debug(NULL,
roundup(len + WMI_MIN_HEAD_ROOM, 4),
WMI_MIN_HEAD_ROOM, 4, false, file_name,
line_num);
wmi_buf = wbuff_buff_get(wmi_handle->wbuff_handle, len);
if (!wmi_buf)
wmi_buf = qdf_nbuf_alloc_debug(NULL,
roundup(len + WMI_MIN_HEAD_ROOM,
4),
WMI_MIN_HEAD_ROOM, 4, false,
file_name, line_num);
if (!wmi_buf)
return NULL;
@@ -1484,7 +1497,9 @@ qdf_export_symbol(wmi_buf_alloc_debug);
void wmi_buf_free(wmi_buf_t net_buf)
{
qdf_nbuf_free(net_buf);
net_buf = wbuff_buff_put(net_buf);
if (net_buf)
qdf_nbuf_free(net_buf);
}
qdf_export_symbol(wmi_buf_free);
#else
@@ -1499,8 +1514,12 @@ wmi_buf_t wmi_buf_alloc_fl(wmi_unified_t wmi_handle, uint32_t len,
return NULL;
}
wmi_buf = qdf_nbuf_alloc_fl(NULL, roundup(len + WMI_MIN_HEAD_ROOM, 4),
WMI_MIN_HEAD_ROOM, 4, false, func, line);
wmi_buf = wbuff_buff_get(wmi_handle->wbuff_handle, len);
if (!wmi_buf)
wmi_buf = qdf_nbuf_alloc_fl(NULL, roundup(len +
WMI_MIN_HEAD_ROOM, 4), WMI_MIN_HEAD_ROOM, 4,
false, func, line);
if (!wmi_buf)
return NULL;
@@ -1517,7 +1536,9 @@ qdf_export_symbol(wmi_buf_alloc_fl);
void wmi_buf_free(wmi_buf_t net_buf)
{
qdf_nbuf_free(net_buf);
net_buf = wbuff_buff_put(net_buf);
if (net_buf)
qdf_nbuf_free(net_buf);
}
qdf_export_symbol(wmi_buf_free);
#endif
@@ -2392,6 +2413,41 @@ void wmi_unified_register_module(enum wmi_target_type target_type,
}
qdf_export_symbol(wmi_unified_register_module);
/**
* wmi_wbuff_register() - register wmi with wbuff
* @wmi_handle: handle to wmi
*
* @Return: void
*/
static void wmi_wbuff_register(struct wmi_unified *wmi_handle)
{
struct wbuff_alloc_request wbuff_alloc[4];
wbuff_alloc[0].slot = WBUFF_POOL_0;
wbuff_alloc[0].size = WMI_WBUFF_POOL_0_SIZE;
wbuff_alloc[1].slot = WBUFF_POOL_1;
wbuff_alloc[1].size = WMI_WBUFF_POOL_1_SIZE;
wbuff_alloc[2].slot = WBUFF_POOL_2;
wbuff_alloc[2].size = WMI_WBUFF_POOL_2_SIZE;
wbuff_alloc[3].slot = WBUFF_POOL_3;
wbuff_alloc[3].size = WMI_WBUFF_POOL_3_SIZE;
wmi_handle->wbuff_handle = wbuff_module_register(wbuff_alloc, 4,
WMI_MIN_HEAD_ROOM, 4);
}
/**
* wmi_wbuff_deregister() - deregister wmi with wbuff
* @wmi_handle: handle to wmi
*
* @Return: void
*/
static inline void wmi_wbuff_deregister(struct wmi_unified *wmi_handle)
{
wbuff_module_deregister(wmi_handle->wbuff_handle);
wmi_handle->wbuff_handle = NULL;
}
/**
* wmi_unified_attach() - attach for unified WMI
* @scn_handle: handle to SCN
@@ -2478,6 +2534,8 @@ void *wmi_unified_attach(void *scn_handle,
if (wmi_ext_dbgfs_init(wmi_handle) != QDF_STATUS_SUCCESS)
WMI_LOGE("failed to initialize wmi extended debugfs");
wmi_wbuff_register(wmi_handle);
return wmi_handle;
error:
@@ -2500,7 +2558,10 @@ void wmi_unified_detach(struct wmi_unified *wmi_handle)
struct wmi_soc *soc;
uint8_t i;
wmi_wbuff_deregister(wmi_handle);
wmi_ext_dbgfs_deinit(wmi_handle);
soc = wmi_handle->soc;
for (i = 0; i < WMI_MAX_RADIOS; i++) {
if (soc->wmi_pdev[i]) {
@@ -2621,7 +2682,7 @@ static void wmi_htc_tx_complete(void *ctx, HTC_PACKET *htc_pkt)
buf_ptr = (u_int8_t *) wmi_buf_data(wmi_cmd_buf);
len = qdf_nbuf_len(wmi_cmd_buf);
qdf_mem_zero(buf_ptr, len);
qdf_nbuf_free(wmi_cmd_buf);
wmi_buf_free(wmi_cmd_buf);
qdf_mem_free(htc_pkt);
qdf_atomic_dec(&wmi_handle->pending_cmds);
}