2023-10-27 01:46:32

by Ping-Ke Shih

[permalink] [raw]
Subject: [PATCH 0/4] wifi: rtw89: update address CAM size and PPDU parser to support WiFi 7 chips

Patch 1/3 is to fill various entry size of address CAM accordingly, because
hardware designer shrinks size for new chips.

Patch 2/4 ~ 3/4 aim to adjust parser of RX PPDU status, the logic is almost
the same as existing, but size and fields are changed a little. The PPDU
packet looks like

+---------------------------+
| RX WD | (RX WD is fixed length basically)
| type = PDDU satus |
| |
+---------------------------+
| PPDU status - MAC part |
| * basic info (8 bytes) | (basic info indicates if following fields
| - usr_num | are existing)
| - with_rx_info |
| - plcp_len |
| * usrs[usr_num] |
| * rx info(128 bytes opt.) |
| * plcp[plcp_len] |
+---------------------------+
| PPDU status - PHY part |
| * basic info (8 bytes) |
| - total length |
| * IEs[] | (iterate all IEs within total length)
+---------------------------+

Ping-Ke Shih (3):
wifi: rtw89: set entry size of address CAM to H2C field by chip
wifi: rwt89: consider RX info for WiFi 7 chips
wifi: rtw89: extend PHY status parser to support WiFi 7 chips

Zong-Zhe Yang (1):
wifi: rtw89: configure PPDU max user by chip

drivers/net/wireless/realtek/rtw89/cam.c | 16 +++-
drivers/net/wireless/realtek/rtw89/core.c | 86 ++++++++++++++++---
drivers/net/wireless/realtek/rtw89/core.h | 3 +-
drivers/net/wireless/realtek/rtw89/mac.h | 1 +
drivers/net/wireless/realtek/rtw89/rtw8851b.c | 1 +
drivers/net/wireless/realtek/rtw89/rtw8852a.c | 1 +
drivers/net/wireless/realtek/rtw89/rtw8852b.c | 1 +
drivers/net/wireless/realtek/rtw89/rtw8852c.c | 1 +
drivers/net/wireless/realtek/rtw89/txrx.h | 4 +
9 files changed, 99 insertions(+), 15 deletions(-)

--
2.25.1


2023-10-27 01:46:32

by Ping-Ke Shih

[permalink] [raw]
Subject: [PATCH 1/4] wifi: rtw89: set entry size of address CAM to H2C field by chip

The new chips change hardware design to shrink entry size of address
CAM from 0x40 to 0x20, so make this change accordingly.

Signed-off-by: Ping-Ke Shih <[email protected]>
---
drivers/net/wireless/realtek/rtw89/cam.c | 16 +++++++++++++++-
drivers/net/wireless/realtek/rtw89/mac.h | 1 +
2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/realtek/rtw89/cam.c b/drivers/net/wireless/realtek/rtw89/cam.c
index f5301c2bbf13..914c94988b2f 100644
--- a/drivers/net/wireless/realtek/rtw89/cam.c
+++ b/drivers/net/wireless/realtek/rtw89/cam.c
@@ -488,6 +488,20 @@ static int rtw89_cam_get_avail_addr_cam(struct rtw89_dev *rtwdev,
return 0;
}

+static u8 rtw89_get_addr_cam_entry_size(struct rtw89_dev *rtwdev)
+{
+ const struct rtw89_chip_info *chip = rtwdev->chip;
+
+ switch (chip->chip_id) {
+ case RTL8852A:
+ case RTL8852B:
+ case RTL8851B:
+ return ADDR_CAM_ENT_SIZE;
+ default:
+ return ADDR_CAM_ENT_SHORT_SIZE;
+ }
+}
+
int rtw89_cam_init_addr_cam(struct rtw89_dev *rtwdev,
struct rtw89_addr_cam_entry *addr_cam,
const struct rtw89_bssid_cam_entry *bssid_cam)
@@ -509,7 +523,7 @@ int rtw89_cam_init_addr_cam(struct rtw89_dev *rtwdev,
}

addr_cam->addr_cam_idx = addr_cam_idx;
- addr_cam->len = ADDR_CAM_ENT_SIZE;
+ addr_cam->len = rtw89_get_addr_cam_entry_size(rtwdev);
addr_cam->offset = 0;
addr_cam->valid = true;
addr_cam->addr_mask = 0;
diff --git a/drivers/net/wireless/realtek/rtw89/mac.h b/drivers/net/wireless/realtek/rtw89/mac.h
index c11c904f87fe..cd2e9b850c72 100644
--- a/drivers/net/wireless/realtek/rtw89/mac.h
+++ b/drivers/net/wireless/realtek/rtw89/mac.h
@@ -10,6 +10,7 @@

#define MAC_MEM_DUMP_PAGE_SIZE 0x40000
#define ADDR_CAM_ENT_SIZE 0x40
+#define ADDR_CAM_ENT_SHORT_SIZE 0x20
#define BSSID_CAM_ENT_SIZE 0x08
#define HFC_PAGE_UNIT 64
#define RPWM_TRY_CNT 3
--
2.25.1

2023-10-27 01:46:32

by Ping-Ke Shih

[permalink] [raw]
Subject: [PATCH 2/4] wifi: rtw89: configure PPDU max user by chip

From: Zong-Zhe Yang <[email protected]>

Different chip can support different max user in one PPDU report.
So, we now configure it in chip info.

Signed-off-by: Zong-Zhe Yang <[email protected]>
Signed-off-by: Ping-Ke Shih <[email protected]>
---
drivers/net/wireless/realtek/rtw89/core.c | 6 ++++--
drivers/net/wireless/realtek/rtw89/core.h | 2 +-
drivers/net/wireless/realtek/rtw89/rtw8851b.c | 1 +
drivers/net/wireless/realtek/rtw89/rtw8852a.c | 1 +
drivers/net/wireless/realtek/rtw89/rtw8852b.c | 1 +
drivers/net/wireless/realtek/rtw89/rtw8852c.c | 1 +
6 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtw89/core.c b/drivers/net/wireless/realtek/rtw89/core.c
index 4bfb4188de72..6a70c035b22e 100644
--- a/drivers/net/wireless/realtek/rtw89/core.c
+++ b/drivers/net/wireless/realtek/rtw89/core.c
@@ -1407,6 +1407,7 @@ static int rtw89_core_rx_process_mac_ppdu(struct rtw89_dev *rtwdev,
struct sk_buff *skb,
struct rtw89_rx_phy_ppdu *phy_ppdu)
{
+ const struct rtw89_chip_info *chip = rtwdev->chip;
const struct rtw89_rxinfo *rxinfo = (const struct rtw89_rxinfo *)skb->data;
bool rx_cnt_valid = false;
u8 plcp_size = 0;
@@ -1416,8 +1417,9 @@ static int rtw89_core_rx_process_mac_ppdu(struct rtw89_dev *rtwdev,
rx_cnt_valid = le32_get_bits(rxinfo->w0, RTW89_RXINFO_W0_RX_CNT_VLD);
plcp_size = le32_get_bits(rxinfo->w1, RTW89_RXINFO_W1_PLCP_LEN) << 3;
usr_num = le32_get_bits(rxinfo->w0, RTW89_RXINFO_W0_USR_NUM);
- if (usr_num > RTW89_PPDU_MAX_USR) {
- rtw89_warn(rtwdev, "Invalid user number in mac info\n");
+ if (usr_num > chip->ppdu_max_usr) {
+ rtw89_warn(rtwdev, "Invalid user number (%d) in mac info\n",
+ usr_num);
return -EINVAL;
}

diff --git a/drivers/net/wireless/realtek/rtw89/core.h b/drivers/net/wireless/realtek/rtw89/core.h
index 91e4d4e79eea..2eb29ea9ff7b 100644
--- a/drivers/net/wireless/realtek/rtw89/core.h
+++ b/drivers/net/wireless/realtek/rtw89/core.h
@@ -2815,7 +2815,6 @@ struct rtw89_ra_info {
u8 csi_bw:3;
};

-#define RTW89_PPDU_MAX_USR 4
#define RTW89_PPDU_MAC_INFO_USR_SIZE 4
#define RTW89_PPDU_MAC_INFO_SIZE 8
#define RTW89_PPDU_MAC_RX_CNT_SIZE 96
@@ -3644,6 +3643,7 @@ struct rtw89_chip_info {
u8 bacam_num;
u8 bacam_dynamic_num;
enum rtw89_bacam_ver bacam_ver;
+ u8 ppdu_max_usr;

u8 sec_ctrl_efuse_size;
u32 physical_efuse_size;
diff --git a/drivers/net/wireless/realtek/rtw89/rtw8851b.c b/drivers/net/wireless/realtek/rtw89/rtw8851b.c
index 50522ff85003..ffc464b2ac10 100644
--- a/drivers/net/wireless/realtek/rtw89/rtw8851b.c
+++ b/drivers/net/wireless/realtek/rtw89/rtw8851b.c
@@ -2393,6 +2393,7 @@ const struct rtw89_chip_info rtw8851b_chip_info = {
.bacam_num = 2,
.bacam_dynamic_num = 4,
.bacam_ver = RTW89_BACAM_V0,
+ .ppdu_max_usr = 4,
.sec_ctrl_efuse_size = 4,
.physical_efuse_size = 1216,
.logical_efuse_size = 2048,
diff --git a/drivers/net/wireless/realtek/rtw89/rtw8852a.c b/drivers/net/wireless/realtek/rtw89/rtw8852a.c
index 0c36e6180e25..0d6f87b900d5 100644
--- a/drivers/net/wireless/realtek/rtw89/rtw8852a.c
+++ b/drivers/net/wireless/realtek/rtw89/rtw8852a.c
@@ -2129,6 +2129,7 @@ const struct rtw89_chip_info rtw8852a_chip_info = {
.bacam_num = 2,
.bacam_dynamic_num = 4,
.bacam_ver = RTW89_BACAM_V0,
+ .ppdu_max_usr = 4,
.sec_ctrl_efuse_size = 4,
.physical_efuse_size = 1216,
.logical_efuse_size = 1536,
diff --git a/drivers/net/wireless/realtek/rtw89/rtw8852b.c b/drivers/net/wireless/realtek/rtw89/rtw8852b.c
index 9d4e6f08218d..62c2feab569c 100644
--- a/drivers/net/wireless/realtek/rtw89/rtw8852b.c
+++ b/drivers/net/wireless/realtek/rtw89/rtw8852b.c
@@ -2563,6 +2563,7 @@ const struct rtw89_chip_info rtw8852b_chip_info = {
.bacam_num = 2,
.bacam_dynamic_num = 4,
.bacam_ver = RTW89_BACAM_V0,
+ .ppdu_max_usr = 4,
.sec_ctrl_efuse_size = 4,
.physical_efuse_size = 1216,
.logical_efuse_size = 2048,
diff --git a/drivers/net/wireless/realtek/rtw89/rtw8852c.c b/drivers/net/wireless/realtek/rtw89/rtw8852c.c
index 3b7d8ab39bab..7bb5d359a06a 100644
--- a/drivers/net/wireless/realtek/rtw89/rtw8852c.c
+++ b/drivers/net/wireless/realtek/rtw89/rtw8852c.c
@@ -2877,6 +2877,7 @@ const struct rtw89_chip_info rtw8852c_chip_info = {
.bacam_num = 8,
.bacam_dynamic_num = 8,
.bacam_ver = RTW89_BACAM_V0_EXT,
+ .ppdu_max_usr = 8,
.sec_ctrl_efuse_size = 4,
.physical_efuse_size = 1216,
.logical_efuse_size = 2048,
--
2.25.1

2023-10-27 01:46:33

by Ping-Ke Shih

[permalink] [raw]
Subject: [PATCH 3/4] wifi: rwt89: consider RX info for WiFi 7 chips

For WiFi 7 chips, some fields and predefined length are changed, so
add them accordingly.

The mac_id field is used to identify peer that send a packet, and we can
use it to know RSSI and traffic from the peer. For WiFi 7 chips,
RXWD.mac_id of PPDU status packet is not set by hardware. Instead, we
should fill it by rxinfo_user[].mac_id of PPDU status content.

Also, filter out invalid reports to prevent warning messages keep showing.

Signed-off-by: Ping-Ke Shih <[email protected]>
---
drivers/net/wireless/realtek/rtw89/core.c | 59 ++++++++++++++++++++---
drivers/net/wireless/realtek/rtw89/core.h | 1 +
drivers/net/wireless/realtek/rtw89/txrx.h | 4 ++
3 files changed, 57 insertions(+), 7 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtw89/core.c b/drivers/net/wireless/realtek/rtw89/core.c
index 6a70c035b22e..ac99434c0e66 100644
--- a/drivers/net/wireless/realtek/rtw89/core.c
+++ b/drivers/net/wireless/realtek/rtw89/core.c
@@ -1409,29 +1409,63 @@ static int rtw89_core_rx_process_mac_ppdu(struct rtw89_dev *rtwdev,
{
const struct rtw89_chip_info *chip = rtwdev->chip;
const struct rtw89_rxinfo *rxinfo = (const struct rtw89_rxinfo *)skb->data;
+ const struct rtw89_rxinfo_user *user;
+ enum rtw89_chip_gen chip_gen = rtwdev->chip->chip_gen;
+ int rx_cnt_size = RTW89_PPDU_MAC_RX_CNT_SIZE;
bool rx_cnt_valid = false;
+ bool invalid = false;
u8 plcp_size = 0;
- u8 usr_num = 0;
u8 *phy_sts;
+ u8 usr_num;
+ int i;
+
+ if (chip_gen == RTW89_CHIP_BE) {
+ invalid = le32_get_bits(rxinfo->w0, RTW89_RXINFO_W0_INVALID_V1);
+ rx_cnt_size = RTW89_PPDU_MAC_RX_CNT_SIZE_V1;
+ }
+
+ if (invalid)
+ return -EINVAL;

rx_cnt_valid = le32_get_bits(rxinfo->w0, RTW89_RXINFO_W0_RX_CNT_VLD);
- plcp_size = le32_get_bits(rxinfo->w1, RTW89_RXINFO_W1_PLCP_LEN) << 3;
- usr_num = le32_get_bits(rxinfo->w0, RTW89_RXINFO_W0_USR_NUM);
+ if (chip_gen == RTW89_CHIP_BE) {
+ plcp_size = le32_get_bits(rxinfo->w0, RTW89_RXINFO_W0_PLCP_LEN_V1) << 3;
+ usr_num = le32_get_bits(rxinfo->w0, RTW89_RXINFO_W0_USR_NUM_V1);
+ } else {
+ plcp_size = le32_get_bits(rxinfo->w1, RTW89_RXINFO_W1_PLCP_LEN) << 3;
+ usr_num = le32_get_bits(rxinfo->w0, RTW89_RXINFO_W0_USR_NUM);
+ }
if (usr_num > chip->ppdu_max_usr) {
rtw89_warn(rtwdev, "Invalid user number (%d) in mac info\n",
usr_num);
return -EINVAL;
}

+ /* For WiFi 7 chips, RXWD.mac_id of PPDU status is not set by hardware,
+ * so update mac_id by rxinfo_user[].mac_id.
+ */
+ for (i = 0; i < usr_num && chip_gen == RTW89_CHIP_BE; i++) {
+ user = &rxinfo->user[i];
+ if (!le32_get_bits(user->w0, RTW89_RXINFO_USER_MAC_ID_VALID))
+ continue;
+
+ phy_ppdu->mac_id =
+ le32_get_bits(user->w0, RTW89_RXINFO_USER_MACID);
+ break;
+ }
+
phy_sts = skb->data + RTW89_PPDU_MAC_INFO_SIZE;
phy_sts += usr_num * RTW89_PPDU_MAC_INFO_USR_SIZE;
/* 8-byte alignment */
if (usr_num & BIT(0))
phy_sts += RTW89_PPDU_MAC_INFO_USR_SIZE;
if (rx_cnt_valid)
- phy_sts += RTW89_PPDU_MAC_RX_CNT_SIZE;
+ phy_sts += rx_cnt_size;
phy_sts += plcp_size;

+ if (phy_sts > skb->data + skb->len)
+ return -EINVAL;
+
phy_ppdu->buf = phy_sts;
phy_ppdu->len = skb->data + skb->len - phy_sts;

@@ -1565,6 +1599,11 @@ static int rtw89_core_rx_process_phy_ppdu(struct rtw89_dev *rtwdev,
{
const struct rtw89_phy_sts_hdr *hdr = phy_ppdu->buf;
u32 len_from_header;
+ bool physts_valid;
+
+ physts_valid = le32_get_bits(hdr->w0, RTW89_PHY_STS_HDR_W0_VALID);
+ if (!physts_valid)
+ return -EINVAL;

len_from_header = le32_get_bits(hdr->w0, RTW89_PHY_STS_HDR_W0_LEN) << 3;

@@ -2054,13 +2093,19 @@ static void rtw89_core_rx_process_ppdu_sts(struct rtw89_dev *rtwdev,
.mac_id = desc_info->mac_id};
int ret;

- if (desc_info->mac_info_valid)
- rtw89_core_rx_process_mac_ppdu(rtwdev, skb, &phy_ppdu);
+ if (desc_info->mac_info_valid) {
+ ret = rtw89_core_rx_process_mac_ppdu(rtwdev, skb, &phy_ppdu);
+ if (ret)
+ goto out;
+ }
+
ret = rtw89_core_rx_process_phy_ppdu(rtwdev, &phy_ppdu);
if (ret)
- rtw89_debug(rtwdev, RTW89_DBG_TXRX, "process ppdu failed\n");
+ goto out;

rtw89_core_rx_process_phy_sts(rtwdev, &phy_ppdu);
+
+out:
rtw89_core_rx_pending_skb(rtwdev, &phy_ppdu, desc_info, skb);
dev_kfree_skb_any(skb);
}
diff --git a/drivers/net/wireless/realtek/rtw89/core.h b/drivers/net/wireless/realtek/rtw89/core.h
index 2eb29ea9ff7b..da8181539d1a 100644
--- a/drivers/net/wireless/realtek/rtw89/core.h
+++ b/drivers/net/wireless/realtek/rtw89/core.h
@@ -2818,6 +2818,7 @@ struct rtw89_ra_info {
#define RTW89_PPDU_MAC_INFO_USR_SIZE 4
#define RTW89_PPDU_MAC_INFO_SIZE 8
#define RTW89_PPDU_MAC_RX_CNT_SIZE 96
+#define RTW89_PPDU_MAC_RX_CNT_SIZE_V1 128

#define RTW89_MAX_RX_AGG_NUM 64
#define RTW89_MAX_TX_AGG_NUM 128
diff --git a/drivers/net/wireless/realtek/rtw89/txrx.h b/drivers/net/wireless/realtek/rtw89/txrx.h
index 7142cce167de..c467a80ffa88 100644
--- a/drivers/net/wireless/realtek/rtw89/txrx.h
+++ b/drivers/net/wireless/realtek/rtw89/txrx.h
@@ -416,8 +416,11 @@ struct rtw89_rxinfo {
} __packed;

#define RTW89_RXINFO_W0_USR_NUM GENMASK(3, 0)
+#define RTW89_RXINFO_W0_USR_NUM_V1 GENMASK(4, 0)
#define RTW89_RXINFO_W0_FW_DEFINE GENMASK(15, 8)
+#define RTW89_RXINFO_W0_PLCP_LEN_V1 GENMASK(23, 16)
#define RTW89_RXINFO_W0_LSIG_LEN GENMASK(27, 16)
+#define RTW89_RXINFO_W0_INVALID_V1 BIT(27)
#define RTW89_RXINFO_W0_IS_TO_SELF BIT(28)
#define RTW89_RXINFO_W0_RX_CNT_VLD BIT(29)
#define RTW89_RXINFO_W0_LONG_RXD GENMASK(31, 30)
@@ -430,6 +433,7 @@ struct rtw89_phy_sts_hdr {
} __packed;

#define RTW89_PHY_STS_HDR_W0_IE_MAP GENMASK(4, 0)
+#define RTW89_PHY_STS_HDR_W0_VALID BIT(7)
#define RTW89_PHY_STS_HDR_W0_LEN GENMASK(15, 8)
#define RTW89_PHY_STS_HDR_W0_RSSI_AVG GENMASK(31, 24)
#define RTW89_PHY_STS_HDR_W1_RSSI_A GENMASK(7, 0)
--
2.25.1

2023-10-27 01:57:34

by Ping-Ke Shih

[permalink] [raw]
Subject: RE: [PATCH 0/4] wifi: rtw89: update address CAM size and PPDU parser to support WiFi 7 chips


> -----Original Message-----
> From: Ping-Ke Shih <[email protected]>
> Sent: Friday, October 27, 2023 9:44 AM
> To: [email protected]
> Cc: Kevin Yang <[email protected]>; [email protected]
> Subject: [PATCH 0/4] wifi: rtw89: update address CAM size and PPDU parser to support WiFi 7 chips
>

Please drop v0 patchset, because subject prefix of patch 3/4 is typo.

Ping-Ke