2021-10-26 14:20:31

by Wen Gong

[permalink] [raw]
Subject: [PATCH 01/15] ath11k: add support for extended wmi service bit

The max wmi service bit is 256 in ath11k, Extend it
for more wmi service bit.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1

Signed-off-by: Wen Gong <[email protected]>
---
drivers/net/wireless/ath/ath11k/wmi.c | 81 ++++++++++++++++-----------
drivers/net/wireless/ath/ath11k/wmi.h | 6 +-
2 files changed, 53 insertions(+), 34 deletions(-)

diff --git a/drivers/net/wireless/ath/ath11k/wmi.c b/drivers/net/wireless/ath/ath11k/wmi.c
index 51b694c1f948..69c7b8355e52 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.c
+++ b/drivers/net/wireless/ath/ath11k/wmi.c
@@ -6626,47 +6626,64 @@ static void ath11k_vdev_install_key_compl_event(struct ath11k_base *ab,
rcu_read_unlock();
}

-static void ath11k_service_available_event(struct ath11k_base *ab, struct sk_buff *skb)
+static int ath11k_wmi_tlv_services_parser(struct ath11k_base *ab,
+ u16 tag, u16 len,
+ const void *ptr, void *data)
{
- const void **tb;
const struct wmi_service_available_event *ev;
- int ret;
+ u32 *wmi_ext2_service_bitmap;
int i, j;

- tb = ath11k_wmi_tlv_parse_alloc(ab, skb->data, skb->len, GFP_ATOMIC);
- if (IS_ERR(tb)) {
- ret = PTR_ERR(tb);
- ath11k_warn(ab, "failed to parse tlv: %d\n", ret);
- return;
- }
+ switch (tag) {
+ case WMI_TAG_SERVICE_AVAILABLE_EVENT:
+ ev = (struct wmi_service_available_event *)ptr;
+ for (i = 0, j = WMI_MAX_SERVICE;
+ i < WMI_SERVICE_SEGMENT_BM_SIZE32 && j < WMI_MAX_EXT_SERVICE;
+ i++) {
+ do {
+ if (ev->wmi_service_segment_bitmap[i] &
+ BIT(j % WMI_AVAIL_SERVICE_BITS_IN_SIZE32))
+ set_bit(j, ab->wmi_ab.svc_map);
+ } while (++j % WMI_AVAIL_SERVICE_BITS_IN_SIZE32);
+ }

- ev = tb[WMI_TAG_SERVICE_AVAILABLE_EVENT];
- if (!ev) {
- ath11k_warn(ab, "failed to fetch svc available ev");
- kfree(tb);
- return;
- }
+ ath11k_dbg(ab, ATH11K_DBG_WMI,
+ "wmi_ext_service_bitmap 0:0x%04x, 1:0x%04x, 2:0x%04x, 3:0x%04x",
+ ev->wmi_service_segment_bitmap[0],
+ ev->wmi_service_segment_bitmap[1],
+ ev->wmi_service_segment_bitmap[2],
+ ev->wmi_service_segment_bitmap[3]);
+ break;
+ case WMI_TAG_ARRAY_UINT32:
+ wmi_ext2_service_bitmap = (u32 *)ptr;
+ for (i = 0, j = WMI_MAX_EXT_SERVICE;
+ i < WMI_SERVICE_SEGMENT_BM_SIZE32 && j < WMI_MAX_EXT2_SERVICE;
+ i++) {
+ do {
+ if (wmi_ext2_service_bitmap[i] &
+ BIT(j % WMI_AVAIL_SERVICE_BITS_IN_SIZE32))
+ set_bit(j, ab->wmi_ab.svc_map);
+ } while (++j % WMI_AVAIL_SERVICE_BITS_IN_SIZE32);
+ }

- /* TODO: Use wmi_service_segment_offset information to get the service
- * especially when more services are advertised in multiple sevice
- * available events.
- */
- for (i = 0, j = WMI_MAX_SERVICE;
- i < WMI_SERVICE_SEGMENT_BM_SIZE32 && j < WMI_MAX_EXT_SERVICE;
- i++) {
- do {
- if (ev->wmi_service_segment_bitmap[i] &
- BIT(j % WMI_AVAIL_SERVICE_BITS_IN_SIZE32))
- set_bit(j, ab->wmi_ab.svc_map);
- } while (++j % WMI_AVAIL_SERVICE_BITS_IN_SIZE32);
+ ath11k_dbg(ab, ATH11K_DBG_WMI,
+ "wmi_ext2_service__bitmap 0:0x%04x, 1:0x%04x, 2:0x%04x, 3:0x%04x",
+ wmi_ext2_service_bitmap[0], wmi_ext2_service_bitmap[1],
+ wmi_ext2_service_bitmap[2], wmi_ext2_service_bitmap[3]);
+ break;
}
+ return 0;
+}

- ath11k_dbg(ab, ATH11K_DBG_WMI,
- "wmi_ext_service_bitmap 0:0x%x, 1:0x%x, 2:0x%x, 3:0x%x",
- ev->wmi_service_segment_bitmap[0], ev->wmi_service_segment_bitmap[1],
- ev->wmi_service_segment_bitmap[2], ev->wmi_service_segment_bitmap[3]);
+static void ath11k_service_available_event(struct ath11k_base *ab, struct sk_buff *skb)
+{
+ int ret;

- kfree(tb);
+ ret = ath11k_wmi_tlv_iter(ab, skb->data, skb->len,
+ ath11k_wmi_tlv_services_parser,
+ NULL);
+ if (ret)
+ ath11k_warn(ab, "failed to parse services available tlv %d\n", ret);
}

static void ath11k_peer_assoc_conf_event(struct ath11k_base *ab, struct sk_buff *skb)
diff --git a/drivers/net/wireless/ath/ath11k/wmi.h b/drivers/net/wireless/ath/ath11k/wmi.h
index e1809ae8d628..79e9140b40d0 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.h
+++ b/drivers/net/wireless/ath/ath11k/wmi.h
@@ -2059,7 +2059,9 @@ enum wmi_tlv_service {
WMI_TLV_SERVICE_EXT2_MSG = 220,
WMI_TLV_SERVICE_SRG_SRP_SPATIAL_REUSE_SUPPORT = 249,

- WMI_MAX_EXT_SERVICE
+ WMI_MAX_EXT_SERVICE = 256,
+
+ WMI_MAX_EXT2_SERVICE
};

enum {
@@ -5066,7 +5068,7 @@ struct ath11k_wmi_base {

struct completion service_ready;
struct completion unified_ready;
- DECLARE_BITMAP(svc_map, WMI_MAX_EXT_SERVICE);
+ DECLARE_BITMAP(svc_map, WMI_MAX_EXT2_SERVICE);
wait_queue_head_t tx_credits_wq;
const struct wmi_peer_flags_map *peer_flags;
u32 num_mem_chunks;
--
2.31.1


2021-12-09 16:16:54

by Kalle Valo

[permalink] [raw]
Subject: Re: [PATCH 01/15] ath11k: add support for extended wmi service bit

Wen Gong <[email protected]> writes:

> The max wmi service bit is 256 in ath11k, Extend it
> for more wmi service bit.
>
> Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1
>
> Signed-off-by: Wen Gong <[email protected]>

[...]

> --- a/drivers/net/wireless/ath/ath11k/wmi.h
> +++ b/drivers/net/wireless/ath/ath11k/wmi.h
> @@ -2059,7 +2059,9 @@ enum wmi_tlv_service {
> WMI_TLV_SERVICE_EXT2_MSG = 220,
> WMI_TLV_SERVICE_SRG_SRP_SPATIAL_REUSE_SUPPORT = 249,
>
> - WMI_MAX_EXT_SERVICE
> + WMI_MAX_EXT_SERVICE = 256,
> +
> + WMI_MAX_EXT2_SERVICE
> };
>
> enum {
> @@ -5066,7 +5068,7 @@ struct ath11k_wmi_base {
>
> struct completion service_ready;
> struct completion unified_ready;
> - DECLARE_BITMAP(svc_map, WMI_MAX_EXT_SERVICE);
> + DECLARE_BITMAP(svc_map, WMI_MAX_EXT2_SERVICE);

I don't get this, why do we need two MAX enums? Please explain in the
commit log.

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