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[PATCH v2] validation: pktio: lso: improve test coverage of custom segnum add #2142

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Nov 8, 2024
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[PATCH v2] validation: pktio: lso: improve test coverage of custom segnum add #2142

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12 changes: 10 additions & 2 deletions test/validation/api/pktio/lso.c
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Original file line number Diff line number Diff line change
Expand Up @@ -26,6 +26,9 @@
#define LSO_TEST_IPV4_FLAG_MF 0x2000 /* More fragments flag within the frag_offset field */
#define LSO_TEST_IPV4_FLAG_DF 0x4000 /* Don't fragment flag within the frag_offset field */
#define LSO_TEST_IPV4_FRAG_OFFS_MASK 0x1fff /* Fragment offset bits in the frag_offset field */
/* Segment number field value in the original packet. Nonzero to verify that the LSO operation
* adds to the value instead of simply overwriting it. */
#define LSO_TEST_CUSTOM_ETH_SEGNUM 0x00fe

/* Pktio interface info
*/
Expand Down Expand Up @@ -825,7 +828,7 @@ static void update_custom_eth_hdr(uint8_t *hdr, uint32_t hdr_len, uint32_t orig_
(void)pkt;
(void)seg_offset;
(void)hdr_len;
odp_u16be_t segnum_be = odp_cpu_to_be_16(seg_num);
odp_u16be_t segnum_be = odp_cpu_to_be_16(seg_num + LSO_TEST_CUSTOM_ETH_SEGNUM);

memcpy(hdr + LSO_TEST_CUSTOM_ETH_SEGNUM_OFFSET, &segnum_be, sizeof(segnum_be));
}
Expand All @@ -852,11 +855,16 @@ static void lso_send_custom_eth(const uint8_t *test_packet, uint32_t pkt_len, ui
static void lso_send_custom_eth_723(uint32_t max_payload, int use_opt)
{
uint32_t pkt_len = sizeof(test_packet_custom_eth_1);
odp_u16be_t segnum = odp_cpu_to_be_16(LSO_TEST_CUSTOM_ETH_SEGNUM);
uint8_t test_pkt[pkt_len];

memcpy(test_pkt, test_packet_custom_eth_1, pkt_len);
memcpy(test_pkt + LSO_TEST_CUSTOM_ETH_SEGNUM_OFFSET, &segnum, sizeof(segnum));

if (max_payload > pktio_a->capa.lso.max_payload_len)
max_payload = pktio_a->capa.lso.max_payload_len;

lso_send_custom_eth(test_packet_custom_eth_1, pkt_len, max_payload, use_opt);
lso_send_custom_eth(test_pkt, pkt_len, max_payload, use_opt);
}

/* No segmentation needed: packet size 723 bytes, LSO segment payload 800 bytes */
Expand Down