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qcacld-3.0: Use a dedicated rx refill ring for Direct Link

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Allocate a dedicated rx refill ring for use by LPASS
WiFi driver to provide buffers back to FW in the
Direct Link datapath.

Change-Id: I3b59e2fd3973f37fc2cc77898c4dcf09fc5def57
CRs-Fixed: 3317972
This commit is contained in:
Yeshwanth Sriram Guntuka
2022-05-21 18:33:04 +05:30
committed by Madan Koyyalamudi
parent 876085af7a
commit e8b18e43b9
2 changed files with 69 additions and 1 deletions
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2
components/dp/core/inc/wlan_dp_priv.h
View File

@@ -366,10 +366,12 @@ enum RX_OFFLOAD {
* struct dp_direct_link_context - Datapath Direct Link context
* @dp_ctx: pointer to DP psoc priv context
* @lpass_ep_id: LPASS data msg service endpoint id
* @direct_link_refill_ring_hdl: Direct Link refill ring handle
*/
struct dp_direct_link_context {
struct wlan_dp_psoc_context *dp_ctx;
HTC_ENDPOINT_ID lpass_ep_id;
struct dp_srng *direct_link_refill_ring_hdl;
};
#endif

68
components/dp/core/src/wlan_dp_main.c
View File

@@ -34,6 +34,10 @@
#include "target_if_dp_comp.h"
#include "wlan_dp_txrx.h"
#ifdef FEATURE_DIRECT_LINK
#include "dp_internal.h"
#endif
/* Global DP context */
static struct wlan_dp_psoc_context *gp_dp_ctx;
@@ -1608,6 +1612,56 @@ dp_lpass_connect_htc_service(struct dp_direct_link_context *dp_direct_link_ctx)
return status;
}
/**
* dp_direct_link_refill_ring_init() - Initialize refill ring that would be used
* for Direct Link DP
* @direct_link_ctx: DP Direct Link context
*
* Return: QDF status
*/
static QDF_STATUS
dp_direct_link_refill_ring_init(struct dp_direct_link_context *direct_link_ctx)
{
struct cdp_soc_t *soc = cds_get_context(QDF_MODULE_ID_SOC);
uint8_t pdev_id;
if (!soc)
return QDF_STATUS_E_FAILURE;
pdev_id = wlan_objmgr_pdev_get_pdev_id(direct_link_ctx->dp_ctx->pdev);
direct_link_ctx->direct_link_refill_ring_hdl =
dp_setup_direct_link_refill_ring(soc,
pdev_id);
if (!direct_link_ctx->direct_link_refill_ring_hdl) {
dp_err("Refill ring init for Direct Link failed");
return QDF_STATUS_E_FAILURE;
}
return QDF_STATUS_SUCCESS;
}
/**
* dp_direct_link_refill_ring_deinit() - De-initialize refill ring that would be
* used for Direct Link DP
* @direct_link_ctx: DP Direct Link context
*
* Return: None
*/
static void
dp_direct_link_refill_ring_deinit(struct dp_direct_link_context *dlink_ctx)
{
struct cdp_soc_t *soc = cds_get_context(QDF_MODULE_ID_SOC);
uint8_t pdev_id;
if (!soc)
return;
pdev_id = wlan_objmgr_pdev_get_pdev_id(dlink_ctx->dp_ctx->pdev);
dp_destroy_direct_link_refill_ring(soc, pdev_id);
dlink_ctx->direct_link_refill_ring_hdl = NULL;
}
QDF_STATUS dp_direct_link_init(struct wlan_dp_psoc_context *dp_ctx)
{
struct dp_direct_link_context *dp_direct_link_ctx;
@@ -1621,6 +1675,8 @@ QDF_STATUS dp_direct_link_init(struct wlan_dp_psoc_context *dp_ctx)
return QDF_STATUS_E_NOMEM;
}
dp_direct_link_ctx->dp_ctx = dp_ctx;
status = dp_lpass_connect_htc_service(dp_direct_link_ctx);
if (QDF_IS_STATUS_ERROR(status)) {
dp_err("Failed to connect to LPASS data msg service");
@@ -1628,14 +1684,24 @@ QDF_STATUS dp_direct_link_init(struct wlan_dp_psoc_context *dp_ctx)
return status;
}
status = dp_direct_link_refill_ring_init(dp_direct_link_ctx);
if (QDF_IS_STATUS_ERROR(status)) {
qdf_mem_free(dp_direct_link_ctx);
return status;
}
dp_ctx->dp_direct_link_ctx = dp_direct_link_ctx;
dp_direct_link_ctx->dp_ctx = dp_ctx;
return status;
}
void dp_direct_link_deinit(struct wlan_dp_psoc_context *dp_ctx)
{
if (dp_ctx->dp_direct_link_ctx)
return;
dp_direct_link_refill_ring_deinit(dp_ctx->dp_direct_link_ctx);
qdf_mem_free(dp_ctx->dp_direct_link_ctx);
dp_ctx->dp_direct_link_ctx = NULL;
}