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vhost/crypto: fix write back source

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This patch fixes vhost crypto library for the incorrect source and
destination buffer calculation in the copy mode.

Fixes: cd1e8f03ab ("vhost/crypto: fix packet copy in chaining mode")
Cc: stable@dpdk.org

Signed-off-by: Fan Zhang <roy.fan.zhang@intel.com>
Acked-by: Chenbo Xia <chenbo.xia@intel.com>
This commit is contained in:
Fan Zhang 2020-09-28 11:59:16 +01:00 committed by Thomas Monjalon
parent b2866f4733
commit 409c47c7c5
1 changed files with 4 additions and 4 deletions
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8
lib/librte_vhost/vhost_crypto.c
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@ -749,14 +749,14 @@ prepare_write_back_data(struct vhost_crypto_data_req *vc_req,
wb_data->src = src + offset;
dlen = desc->len;
dst = IOVA_TO_VVA(uint8_t *, vc_req, desc->addr,
&dlen, VHOST_ACCESS_RW) + offset;
&dlen, VHOST_ACCESS_RW);
if (unlikely(!dst || dlen != desc->len)) {
VC_LOG_ERR("Failed to map descriptor");
goto error_exit;
}
wb_data->dst = dst;
wb_data->len = RTE_MIN(desc->len - offset, write_back_len);
wb_data->dst = dst + offset;
wb_data->len = RTE_MIN(dlen - offset, write_back_len);
write_back_len -= wb_data->len;
src += offset + wb_data->len;
offset = 0;
@ -801,7 +801,7 @@ prepare_write_back_data(struct vhost_crypto_data_req *vc_req,
goto error_exit;
}
wb_data->src = src;
wb_data->src = src + offset;
wb_data->dst = dst;
wb_data->len = RTE_MIN(desc->len - offset, write_back_len);
write_back_len -= wb_data->len;