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qcacld-3.0: Add support for TSO frames in packet capture mode

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Currently, TSO frames are not handled in packet capture mode.
Add support to handle TSO frames.

Change-Id: Ib901defcd369b01a33c87ca888ad80fe5fd086c7
CRs-Fixed: 2932138
This commit is contained in:
Surabhi Vishnoi 2021-04-21 17:24:51 +05:30 • committed by Madan Koyyalamudi
commit 14ed3f8c2d
1 changed files with 52 additions and 3 deletions
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55
components/pkt_capture/core/src/wlan_pkt_capture_main.c
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@ -137,6 +137,7 @@ void pkt_capture_callback(void *soc, enum WDI_EVENT event, void *log_data,
struct pkt_capture_tx_hdr_elem_t *ptr_pktcapture_hdr;
struct pkt_capture_tx_hdr_elem_t pktcapture_hdr = {0};
struct hal_tx_completion_status tx_comp_status = {0};
struct qdf_tso_seg_elem_t *tso_seg = NULL;
uint32_t txcap_hdr_size =
sizeof(struct pkt_capture_tx_hdr_elem_t);
@ -173,7 +174,15 @@ void pkt_capture_callback(void *soc, enum WDI_EVENT event, void *log_data,
tid = tx_comp_status.tid;
status = tx_comp_status.status;
nbuf_len = qdf_nbuf_len(desc->nbuf);
if (desc->frm_type == dp_tx_frm_tso) {
if (!desc->tso_desc)
return;
tso_seg = desc->tso_desc;
nbuf_len = tso_seg->seg.total_len;
} else {
nbuf_len = qdf_nbuf_len(desc->nbuf);
}
netbuf = qdf_nbuf_alloc(NULL,
roundup(nbuf_len + RESERVE_BYTES, 4),
RESERVE_BYTES, 4, false);
@ -183,8 +192,48 @@ void pkt_capture_callback(void *soc, enum WDI_EVENT event, void *log_data,
qdf_nbuf_put_tail(netbuf, nbuf_len);
qdf_mem_copy(qdf_nbuf_data(netbuf),
qdf_nbuf_data(desc->nbuf), nbuf_len);
if (desc->frm_type == dp_tx_frm_tso) {
uint8_t frag_cnt, num_frags = 0;
int frag_len = 0;
uint32_t tcp_seq_num;
uint16_t ip_len;
if (tso_seg->seg.num_frags > 0)
num_frags = tso_seg->seg.num_frags - 1;
/*Num of frags in a tso seg cannot be less than 2 */
if (num_frags < 1) {
pkt_capture_err("num of frags in tso segment is %d\n",
(num_frags + 1));
qdf_nbuf_free(netbuf);
return;
}
tcp_seq_num = tso_seg->seg.tso_flags.tcp_seq_num;
tcp_seq_num = qdf_cpu_to_be32(tcp_seq_num);
ip_len = tso_seg->seg.tso_flags.ip_len;
ip_len = qdf_cpu_to_be16(ip_len);
for (frag_cnt = 0; frag_cnt <= num_frags; frag_cnt++) {
qdf_mem_copy(
qdf_nbuf_data(netbuf) + frag_len,
tso_seg->seg.tso_frags[frag_cnt].vaddr,
tso_seg->seg.tso_frags[frag_cnt].length);
frag_len +=
tso_seg->seg.tso_frags[frag_cnt].length;
}
qdf_mem_copy((qdf_nbuf_data(netbuf) +
IPV4_PKT_LEN_OFFSET),
&ip_len, sizeof(ip_len));
qdf_mem_copy((qdf_nbuf_data(netbuf) +
IPV4_TCP_SEQ_NUM_OFFSET),
&tcp_seq_num, sizeof(tcp_seq_num));
} else {
qdf_mem_copy(qdf_nbuf_data(netbuf),
qdf_nbuf_data(desc->nbuf), nbuf_len);
}
if (qdf_unlikely(qdf_nbuf_headroom(netbuf) < txcap_hdr_size)) {
netbuf = qdf_nbuf_realloc_headroom(netbuf,