From: Fan Zhang Date: Mon, 28 Sep 2020 10:59:16 +0000 (+0100) Subject: vhost/crypto: fix write back source X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=409c47c7c5b849b887ad9626f25c4ecdf06c9e68;p=dpdk.git vhost/crypto: fix write back source This patch fixes vhost crypto library for the incorrect source and destination buffer calculation in the copy mode. Fixes: cd1e8f03abf0 ("vhost/crypto: fix packet copy in chaining mode") Cc: stable@dpdk.org Signed-off-by: Fan Zhang Acked-by: Chenbo Xia --- diff --git a/lib/librte_vhost/vhost_crypto.c b/lib/librte_vhost/vhost_crypto.c index 494f49084b..f1cc32a9b2 100644 --- a/lib/librte_vhost/vhost_crypto.c +++ b/lib/librte_vhost/vhost_crypto.c @@ -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;