From: "Xing, Beilei" <beilei.xing@intel.com>
To: "Rybalchenko, Kirill" <kirill.rybalchenko@intel.com>,
"dev@dpdk.org" <dev@dpdk.org>
Cc: "Chilikin, Andrey" <andrey.chilikin@intel.com>,
"Wu, Jingjing" <jingjing.wu@intel.com>
Subject: Re: [dpdk-dev] [PATCH v5 1/2] net/i40e: get information about protocols defined in ddp profile
Date: Tue, 26 Sep 2017 03:35:05 +0000 [thread overview]
Message-ID: <94479800C636CB44BD422CB454846E013203780F@SHSMSX101.ccr.corp.intel.com> (raw)
In-Reply-To: <1505843612-40976-2-git-send-email-kirill.rybalchenko@intel.com>
> -----Original Message-----
> From: Rybalchenko, Kirill
> Sent: Wednesday, September 20, 2017 1:54 AM
> To: dev@dpdk.org
> Cc: Rybalchenko, Kirill <kirill.rybalchenko@intel.com>; Chilikin, Andrey
> <andrey.chilikin@intel.com>; Xing, Beilei <beilei.xing@intel.com>; Wu,
> Jingjing <jingjing.wu@intel.com>
> Subject: [PATCH v5 1/2] net/i40e: get information about protocols defined in
> ddp profile
>
> This patch adds new package info types to get list of protocols, pctypes and
> ptypes defined in a profile
>
> ---
> v3
> info_size parameter always represents size of the info buffer in bytes
>
> Signed-off-by: Kirill Rybalchenko <kirill.rybalchenko@intel.com>
> ---
> drivers/net/i40e/rte_pmd_i40e.c | 171
> ++++++++++++++++++++++++++++++++++++++++
> drivers/net/i40e/rte_pmd_i40e.h | 25 ++++++
> 2 files changed, 196 insertions(+)
>
> diff --git a/drivers/net/i40e/rte_pmd_i40e.c
> b/drivers/net/i40e/rte_pmd_i40e.c index c08e07a..80af18b 100644
> --- a/drivers/net/i40e/rte_pmd_i40e.c
> +++ b/drivers/net/i40e/rte_pmd_i40e.c
> @@ -1706,6 +1706,26 @@ rte_pmd_i40e_process_ddp_package(uint8_t
> port, uint8_t *buff,
> return status;
> }
>
> +/* Get number of tvl records in the section */ static unsigned int
> +i40e_get_tlv_section_size(struct i40e_profile_section_header *sec) {
> + unsigned int i, nb_rec, nb_tlv = 0;
> + struct i40e_profile_tlv_section_record *tlv;
> +
> + if (!sec)
> + return nb_tlv;
> +
> + /* get number of records in the section */
> + nb_rec = sec->section.size / sizeof(struct
> i40e_profile_tlv_section_record);
> + for (i = 0; i < nb_rec; ) {
> + tlv = (struct i40e_profile_tlv_section_record *)&sec[1 + i];
> + i += tlv->len;
> + nb_tlv++;
> + }
> + return nb_tlv;
In my opinion, nb_rec should be the same with nb_tlv, why need the for loop to get and return nb_tlv? Please correct me if I'm wrong.
<snip>
> +
> + /* get list of protocols */
> + if (type == RTE_PMD_I40E_PKG_INFO_PROTOCOL_LIST) {
> + uint32_t i, j, nb_rec;
> + struct rte_pmd_i40e_proto_info *pinfo;
> + struct i40e_profile_section_header *proto;
> + struct i40e_profile_tlv_section_record *tlv;
> +
> + proto = i40e_find_section_in_profile(SECTION_TYPE_PROTO,
> + (struct
> i40e_profile_segment *)
> + i40e_seg_hdr);
> + nb_rec = i40e_get_tlv_section_size(proto);
> + if (info_size < nb_rec * sizeof(struct
> rte_pmd_i40e_proto_info)) {
> + PMD_DRV_LOG(ERR, "Invalid information buffer
> size");
> + return -EINVAL;
> + }
> + pinfo = (struct rte_pmd_i40e_proto_info *)info_buff;
> + for (i = 0; i < info_size; i++) {
You changed info_size represents the size of the info buffer, then should use 'i < nb_rec' instead of ' i < info_size ' in for loop, otherwise there will be unexpected issue.
> + pinfo[i].proto_id = RTE_PMD_I40E_PROTO_UNUSED;
> + memset(pinfo[i].name, 0,
> RTE_PMD_I40E_DDP_NAME_SIZE);
> + }
> + if (nb_rec == 0)
> + return I40E_SUCCESS;
Why not adding the condition just after 'nb_rec = i40e_get_tlv_section_size(proto);' ?
> + /* get number of records in the section */
> + nb_rec = proto->section.size /
> + sizeof(struct
> i40e_profile_tlv_section_record);
Why do we need to get the nb_rec again? I think the value should be the same as the last value.
> + tlv = (struct i40e_profile_tlv_section_record *)&proto[1];
> + for (i = j = 0; i < nb_rec; j++) {
> + pinfo[j].proto_id = tlv->data[0];
> + strncpy(pinfo[j].name, (const char *)&tlv->data[1],
> + I40E_DDP_NAME_SIZE);
> + i += tlv->len;
> + tlv = &tlv[tlv->len];
> + }
> + return I40E_SUCCESS;
> + }
> +
<snip>
Same comments for get RTE_PMD_I40E_PKG_INFO_PCTYPE_LIST and RTE_PMD_I40E_PKG_INFO_PTYPE_LIST.
next prev parent reply other threads:[~2017-09-26 3:35 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <4075836-102681-1-git-send-email-kirill.rybalchenko@intel.com>
2017-09-01 16:01 ` [dpdk-dev] [PATCH v2 0/2] " Kirill Rybalchenko
2017-09-01 16:01 ` [dpdk-dev] [PATCH v2 1/2] " Kirill Rybalchenko
2017-09-04 12:36 ` Iremonger, Bernard
2017-09-11 15:32 ` Ferruh Yigit
2017-09-01 16:01 ` [dpdk-dev] [PATCH v2 2/2] app/testpmd: " Kirill Rybalchenko
2017-09-04 12:44 ` Iremonger, Bernard
2017-09-04 12:46 ` Iremonger, Bernard
2017-09-11 15:32 ` Ferruh Yigit
2017-09-19 16:46 ` [dpdk-dev] [PATCH v3 0/2] net/i40e: " Kirill Rybalchenko
2017-09-19 16:46 ` [dpdk-dev] [PATCH v3 1/2] " Kirill Rybalchenko
2017-09-19 16:46 ` [dpdk-dev] [PATCH v3 2/2] app/testpmd: " Kirill Rybalchenko
2017-09-19 17:32 ` [dpdk-dev] [PATCH v4 0/2] net/i40e: " Kirill Rybalchenko
2017-09-19 17:32 ` [dpdk-dev] [PATCH v4 1/2] " Kirill Rybalchenko
2017-09-19 17:32 ` [dpdk-dev] [PATCH v4 2/2] app/testpmd: " Kirill Rybalchenko
2017-09-19 17:53 ` [dpdk-dev] [PATCH v5 0/2] net/i40e: " Kirill Rybalchenko
2017-09-19 17:53 ` [dpdk-dev] [PATCH v5 1/2] " Kirill Rybalchenko
2017-09-26 3:35 ` Xing, Beilei [this message]
2017-09-19 17:53 ` [dpdk-dev] [PATCH v5 2/2] app/testpmd: " Kirill Rybalchenko
2017-09-28 13:33 ` [dpdk-dev] [PATCH v6 0/2] net/i40e: " Kirill Rybalchenko
2017-09-28 13:33 ` [dpdk-dev] [PATCH v6 1/2] " Kirill Rybalchenko
2017-09-29 7:30 ` Xing, Beilei
2017-09-28 13:33 ` [dpdk-dev] [PATCH v6 2/2] app/testpmd: " Kirill Rybalchenko
2017-10-02 9:39 ` [dpdk-dev] [PATCH v7 0/2] net/i40e: " Kirill Rybalchenko
2017-10-02 9:39 ` [dpdk-dev] [PATCH v7 1/2] " Kirill Rybalchenko
2017-10-02 9:39 ` [dpdk-dev] [PATCH v7 2/2] app/testpmd: " Kirill Rybalchenko
2017-10-04 14:00 ` [dpdk-dev] [PATCH v8 0/2] et/i40e: " Kirill Rybalchenko
2017-10-04 14:00 ` [dpdk-dev] [PATCH v8 1/2] net/i40e: " Kirill Rybalchenko
2017-10-04 14:00 ` [dpdk-dev] [PATCH v8 2/2] app/testpmd: " Kirill Rybalchenko
2017-10-04 22:00 ` [dpdk-dev] [PATCH v8 0/2] et/i40e: " Ferruh Yigit
2017-10-05 1:11 ` Ferruh Yigit
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