mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-11 16:46:41 +07:00
rt2x00: Fix rt2800usb RX frame format and as such L2PAD
According to Ralink source code, the RX frame format is RXINFO + RXWI + 802.11 frame + RXD, including various padding. Before this patch, we were using RXD + RXWI + 802.11 frame, so RXD was not correct. Doing this, we fix the L2PAD bit which is now correctly set on received frames. Signed-off-by: Benoit Papillault <benoit.papillault@free.fr> Acked-by: Ivo van Doorn <ivdoorn@gmail.com> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Benoit Papillault
John W. Linville
parent
9c8427d9de
commit
5de42f9eea
@ -571,41 +571,57 @@ static void rt2800usb_fill_rxdone(struct queue_entry *entry,
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{
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struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
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struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
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__le32 *rxd = (__le32 *)entry->skb->data;
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__le32 *rxi = (__le32 *)entry->skb->data;
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__le32 *rxwi;
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u32 rxd0;
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__le32 *rxd;
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u32 rxi0;
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u32 rxwi0;
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u32 rxwi1;
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u32 rxwi2;
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u32 rxwi3;
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u32 rxd0;
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int rx_pkt_len;
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/*
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* RX frame format is :
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* | RXINFO | RXWI | header | L2 pad | payload | pad | RXD | USB pad |
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* |<------------ rx_pkt_len -------------->|
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*/
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rt2x00_desc_read(rxi, 0, &rxi0);
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rx_pkt_len = rt2x00_get_field32(rxi0, RXINFO_W0_USB_DMA_RX_PKT_LEN);
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rxwi = (__le32 *)(entry->skb->data + RXINFO_DESC_SIZE);
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/*
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* FIXME : we need to check for rx_pkt_len validity
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*/
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rxd = (__le32 *)(entry->skb->data + RXINFO_DESC_SIZE + rx_pkt_len);
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/*
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* Copy descriptor to the skbdesc->desc buffer, making it safe from
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* moving of frame data in rt2x00usb.
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*/
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memcpy(skbdesc->desc, rxd, skbdesc->desc_len);
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rxd = (__le32 *)skbdesc->desc;
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rxwi = &rxd[RXINFO_DESC_SIZE / sizeof(__le32)];
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memcpy(skbdesc->desc, rxi, skbdesc->desc_len);
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/*
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* It is now safe to read the descriptor on all architectures.
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*/
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rt2x00_desc_read(rxd, 0, &rxd0);
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rt2x00_desc_read(rxwi, 0, &rxwi0);
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rt2x00_desc_read(rxwi, 1, &rxwi1);
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rt2x00_desc_read(rxwi, 2, &rxwi2);
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rt2x00_desc_read(rxwi, 3, &rxwi3);
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rt2x00_desc_read(rxd, 0, &rxd0);
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if (rt2x00_get_field32(rxd0, RXINFO_W0_CRC_ERROR))
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if (rt2x00_get_field32(rxd0, RXD_W0_CRC_ERROR))
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rxdesc->flags |= RX_FLAG_FAILED_FCS_CRC;
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if (test_bit(CONFIG_SUPPORT_HW_CRYPTO, &rt2x00dev->flags)) {
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rxdesc->cipher = rt2x00_get_field32(rxwi0, RXWI_W0_UDF);
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rxdesc->cipher_status =
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rt2x00_get_field32(rxd0, RXINFO_W0_CIPHER_ERROR);
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rt2x00_get_field32(rxd0, RXD_W0_CIPHER_ERROR);
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}
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if (rt2x00_get_field32(rxd0, RXINFO_W0_DECRYPTED)) {
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if (rt2x00_get_field32(rxd0, RXD_W0_DECRYPTED)) {
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/*
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* Hardware has stripped IV/EIV data from 802.11 frame during
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* decryption. Unfortunately the descriptor doesn't contain
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@ -620,10 +636,10 @@ static void rt2800usb_fill_rxdone(struct queue_entry *entry,
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rxdesc->flags |= RX_FLAG_MMIC_ERROR;
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}
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if (rt2x00_get_field32(rxd0, RXINFO_W0_MY_BSS))
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if (rt2x00_get_field32(rxd0, RXD_W0_MY_BSS))
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rxdesc->dev_flags |= RXDONE_MY_BSS;
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if (rt2x00_get_field32(rxd0, RXINFO_W0_L2PAD))
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if (rt2x00_get_field32(rxd0, RXD_W0_L2PAD))
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rxdesc->dev_flags |= RXDONE_L2PAD;
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if (rt2x00_get_field32(rxwi1, RXWI_W1_SHORT_GI))
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@ -79,6 +79,8 @@
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*/
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#define TXINFO_DESC_SIZE ( 1 * sizeof(__le32) )
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#define RXINFO_DESC_SIZE ( 1 * sizeof(__le32) )
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#define RXWI_DESC_SIZE ( 4 * sizeof(__le32) )
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#define RXD_DESC_SIZE ( 1 * sizeof(__le32) )
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/*
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* TX Info structure
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@ -100,6 +102,54 @@
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#define TXINFO_W0_USB_DMA_NEXT_VALID FIELD32(0x40000000)
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#define TXINFO_W0_USB_DMA_TX_BURST FIELD32(0x80000000)
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/*
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* RX Info structure
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*/
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/*
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* Word 0
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*/
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#define RXINFO_W0_USB_DMA_RX_PKT_LEN FIELD32(0x0000ffff)
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/*
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* RX WI structure
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*/
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/*
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* Word0
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*/
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#define RXWI_W0_WIRELESS_CLI_ID FIELD32(0x000000ff)
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#define RXWI_W0_KEY_INDEX FIELD32(0x00000300)
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#define RXWI_W0_BSSID FIELD32(0x00001c00)
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#define RXWI_W0_UDF FIELD32(0x0000e000)
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#define RXWI_W0_MPDU_TOTAL_BYTE_COUNT FIELD32(0x0fff0000)
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#define RXWI_W0_TID FIELD32(0xf0000000)
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/*
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* Word1
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*/
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#define RXWI_W1_FRAG FIELD32(0x0000000f)
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#define RXWI_W1_SEQUENCE FIELD32(0x0000fff0)
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#define RXWI_W1_MCS FIELD32(0x007f0000)
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#define RXWI_W1_BW FIELD32(0x00800000)
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#define RXWI_W1_SHORT_GI FIELD32(0x01000000)
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#define RXWI_W1_STBC FIELD32(0x06000000)
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#define RXWI_W1_PHYMODE FIELD32(0xc0000000)
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/*
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* Word2
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*/
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#define RXWI_W2_RSSI0 FIELD32(0x000000ff)
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#define RXWI_W2_RSSI1 FIELD32(0x0000ff00)
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#define RXWI_W2_RSSI2 FIELD32(0x00ff0000)
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/*
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* Word3
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*/
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#define RXWI_W3_SNR0 FIELD32(0x000000ff)
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#define RXWI_W3_SNR1 FIELD32(0x0000ff00)
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/*
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* RX descriptor format for RX Ring.
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*/
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@ -115,25 +165,25 @@
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* AMSDU: rx with 802.3 header, not 802.11 header.
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*/
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#define RXINFO_W0_BA FIELD32(0x00000001)
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#define RXINFO_W0_DATA FIELD32(0x00000002)
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#define RXINFO_W0_NULLDATA FIELD32(0x00000004)
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#define RXINFO_W0_FRAG FIELD32(0x00000008)
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#define RXINFO_W0_UNICAST_TO_ME FIELD32(0x00000010)
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#define RXINFO_W0_MULTICAST FIELD32(0x00000020)
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#define RXINFO_W0_BROADCAST FIELD32(0x00000040)
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#define RXINFO_W0_MY_BSS FIELD32(0x00000080)
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#define RXINFO_W0_CRC_ERROR FIELD32(0x00000100)
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#define RXINFO_W0_CIPHER_ERROR FIELD32(0x00000600)
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#define RXINFO_W0_AMSDU FIELD32(0x00000800)
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#define RXINFO_W0_HTC FIELD32(0x00001000)
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#define RXINFO_W0_RSSI FIELD32(0x00002000)
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#define RXINFO_W0_L2PAD FIELD32(0x00004000)
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#define RXINFO_W0_AMPDU FIELD32(0x00008000)
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#define RXINFO_W0_DECRYPTED FIELD32(0x00010000)
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#define RXINFO_W0_PLCP_RSSI FIELD32(0x00020000)
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#define RXINFO_W0_CIPHER_ALG FIELD32(0x00040000)
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#define RXINFO_W0_LAST_AMSDU FIELD32(0x00080000)
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#define RXINFO_W0_PLCP_SIGNAL FIELD32(0xfff00000)
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#define RXD_W0_BA FIELD32(0x00000001)
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#define RXD_W0_DATA FIELD32(0x00000002)
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#define RXD_W0_NULLDATA FIELD32(0x00000004)
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#define RXD_W0_FRAG FIELD32(0x00000008)
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#define RXD_W0_UNICAST_TO_ME FIELD32(0x00000010)
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#define RXD_W0_MULTICAST FIELD32(0x00000020)
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#define RXD_W0_BROADCAST FIELD32(0x00000040)
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#define RXD_W0_MY_BSS FIELD32(0x00000080)
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#define RXD_W0_CRC_ERROR FIELD32(0x00000100)
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#define RXD_W0_CIPHER_ERROR FIELD32(0x00000600)
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#define RXD_W0_AMSDU FIELD32(0x00000800)
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#define RXD_W0_HTC FIELD32(0x00001000)
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#define RXD_W0_RSSI FIELD32(0x00002000)
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#define RXD_W0_L2PAD FIELD32(0x00004000)
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#define RXD_W0_AMPDU FIELD32(0x00008000)
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#define RXD_W0_DECRYPTED FIELD32(0x00010000)
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#define RXD_W0_PLCP_RSSI FIELD32(0x00020000)
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#define RXD_W0_CIPHER_ALG FIELD32(0x00040000)
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#define RXD_W0_LAST_AMSDU FIELD32(0x00080000)
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#define RXD_W0_PLCP_SIGNAL FIELD32(0xfff00000)
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#endif /* RT2800USB_H */
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