From: Adrien Mazarguil <adrien.mazarguil@6wind.com>
To: Zhiyong Yang <zhiyong.yang@intel.com>
Cc: dev@dpdk.org, thomas@monjalon.net, ferruh.yigit@intel.com,
hemant.agrawal@nxp.com, david.hunt@intel.com
Subject: Re: [dpdk-dev] [PATCH v3 1/4] ethdev: increase port_id range
Date: Mon, 11 Sep 2017 11:37:02 +0200 [thread overview]
Message-ID: <20170911093702.GD2481@6wind.com> (raw)
In-Reply-To: <20170909144727.46388-2-zhiyong.yang@intel.com>
Hi Zhiyong,
On Sat, Sep 09, 2017 at 10:47:24PM +0800, Zhiyong Yang wrote:
> Extend port_id definition from uint8_t to uint16_t in lib and drivers
> data structures, specifically rte_eth_dev_data.
> Modify the APIs, drivers and app using port_id at the same time.
>
> Fix some checkpatch issues from the original code and remove some
> unnecessary cast operations.
>
> Signed-off-by: Zhiyong Yang <zhiyong.yang@intel.com>
Thanks for the mlx4/mlx5 update, I have some comments, see below.
By the way, since this commit breaks ABI compatibility for pretty much all
public functions in librte_ether and a few in other places, remember to
update rte_ethdev_version.map and other affected .map files accordingly.
I think this change has to be part of this series.
<snip>
> diff --git a/drivers/net/mlx4/mlx4.h b/drivers/net/mlx4/mlx4.h
> index c0ade4f1a..fe911c3a7 100644
> --- a/drivers/net/mlx4/mlx4.h
> +++ b/drivers/net/mlx4/mlx4.h
> @@ -334,7 +334,7 @@ struct priv {
> } vlan_filter[MLX4_MAX_VLAN_IDS]; /* VLAN filters table. */
> /* Device properties. */
> uint16_t mtu; /* Configured MTU. */
> - uint8_t port; /* Physical port number. */
> + uint16_t port; /* Physical port number. */
> unsigned int started:1; /* Device started, flows enabled. */
> unsigned int promisc:1; /* Device in promiscuous mode. */
> unsigned int allmulti:1; /* Device receives all multicast packets. */
This is a physical port number internal to the device, not DPDK's. Please
drop this change.
What would need change is struct rxq's port_id field (already large enough)
if you want to enforce uint16_t everywhere.
> diff --git a/drivers/net/mlx5/mlx5.h b/drivers/net/mlx5/mlx5.h
> index 43c538419..54a2e8a54 100644
> --- a/drivers/net/mlx5/mlx5.h
> +++ b/drivers/net/mlx5/mlx5.h
> @@ -114,7 +114,7 @@ struct priv {
> unsigned int vlan_filter_n; /* Number of configured VLAN filters. */
> /* Device properties. */
> uint16_t mtu; /* Configured MTU. */
> - uint8_t port; /* Physical port number. */
> + uint16_t port; /* Physical port number. */
Same comment here.
> unsigned int started:1; /* Device started, flows enabled. */
> unsigned int promisc_req:1; /* Promiscuous mode requested. */
> unsigned int allmulti_req:1; /* All multicast mode requested. */
> diff --git a/drivers/net/mlx5/mlx5_ethdev.c b/drivers/net/mlx5/mlx5_ethdev.c
> index b0eb3cdfc..58e7cf571 100644
> --- a/drivers/net/mlx5/mlx5_ethdev.c
> +++ b/drivers/net/mlx5/mlx5_ethdev.c
> @@ -75,7 +75,7 @@ struct ethtool_link_settings {
> uint32_t cmd;
> uint32_t speed;
> uint8_t duplex;
> - uint8_t port;
> + uint16_t port;
This is the ethtool interface from the Linux kernel, again this field has to
remain 8 bits.
That's the kind of mistakes a dedicated type might have prevented by the
way, I'm still not convinced that not adding one was the right decision.
> uint8_t phy_address;
> uint8_t autoneg;
> uint8_t mdio_support;
> diff --git a/drivers/net/mlx5/mlx5_rxtx.h b/drivers/net/mlx5/mlx5_rxtx.h
> index 7de1d1086..c47e54fe0 100644
> --- a/drivers/net/mlx5/mlx5_rxtx.h
> +++ b/drivers/net/mlx5/mlx5_rxtx.h
> @@ -112,7 +112,6 @@ struct rxq {
> unsigned int sges_n:2; /* Log 2 of SGEs (max buffers per packet). */
> unsigned int cqe_n:4; /* Log 2 of CQ elements. */
> unsigned int elts_n:4; /* Log 2 of Mbufs. */
> - unsigned int port_id:8;
> unsigned int rss_hash:1; /* RSS hash result is enabled. */
> unsigned int mark:1; /* Marked flow available on the queue. */
> unsigned int pending_err:1; /* CQE error needs to be handled. */
> @@ -120,6 +119,7 @@ struct rxq {
> unsigned int :6; /* Remaining bits. */
> volatile uint32_t *rq_db;
> volatile uint32_t *cq_db;
> + uint16_t port_id;
> uint16_t rq_ci;
> uint16_t rq_pi;
> uint16_t cq_ci;
This change might have a performance impact. All important fields are found
at the beginning of this structure for that reason. Since there's not enough
room in the above bit-field (8 + 6), I guess there's no other choice for
now, however you should at least update the "Remaining bits" comment.
<snip>
--
Adrien Mazarguil
6WIND
next prev parent reply other threads:[~2017-09-11 9:37 UTC|newest]
Thread overview: 101+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-09 8:42 [dpdk-dev] [PATCH 0/2] " Zhiyong Yang
2017-08-09 8:42 ` [dpdk-dev] [PATCH 1/2] ethdev: " Zhiyong Yang
2017-08-09 12:52 ` Ferruh Yigit
2017-08-09 12:57 ` Wiles, Keith
2017-08-10 0:53 ` Yang, Zhiyong
2017-08-10 0:51 ` Yang, Zhiyong
2017-08-09 8:42 ` [dpdk-dev] [PATCH 2/2] examples: " Zhiyong Yang
2017-08-09 14:48 ` Stephen Hemminger
2017-08-10 1:03 ` Yang, Zhiyong
2017-08-09 9:00 ` [dpdk-dev] [PATCH 0/2] " De Lara Guarch, Pablo
2017-08-09 9:17 ` Yang, Zhiyong
2017-09-04 5:57 ` [dpdk-dev] [PATCH v2 0/4] " Zhiyong Yang
2017-09-04 5:57 ` [dpdk-dev] [PATCH v2 1/4] ethdev: " Zhiyong Yang
2017-09-04 9:06 ` Bruce Richardson
2017-09-04 9:29 ` Ferruh Yigit
2017-09-04 9:47 ` Yang, Zhiyong
2017-09-04 13:12 ` Adrien Mazarguil
2017-09-04 13:17 ` Richardson, Bruce
2017-09-04 13:36 ` Adrien Mazarguil
2017-09-04 13:59 ` Yang, Zhiyong
2017-09-04 14:41 ` Adrien Mazarguil
2017-09-05 6:51 ` Yang, Zhiyong
2017-09-06 8:32 ` Hemant Agrawal
2017-09-06 8:48 ` Yang, Zhiyong
[not found] ` <CALZ3Guikt9x8sz-oEKCuDCSp_wtKa64bSXTrMhqcWyg7f_dS7g@mail.gmail.com>
2017-09-07 0:45 ` Yang, Zhiyong
2017-09-04 5:57 ` [dpdk-dev] [PATCH v2 2/4] examples: " Zhiyong Yang
2017-09-04 14:15 ` Hunt, David
2017-09-04 15:01 ` Yang, Zhiyong
2017-09-04 5:57 ` [dpdk-dev] [PATCH v2 3/4] common_base: extend RTE_MAX_ETHPORTS from 32 to 1024 Zhiyong Yang
2017-09-04 7:46 ` Yao, Lei A
2017-09-04 7:59 ` Yang, Zhiyong
2017-09-04 9:09 ` Bruce Richardson
2017-09-04 10:05 ` Yang, Zhiyong
2017-09-04 10:27 ` Ananyev, Konstantin
2017-09-04 14:18 ` Yang, Zhiyong
2017-09-06 8:42 ` Hemant Agrawal
2017-09-06 8:52 ` Yang, Zhiyong
2017-09-04 10:29 ` Bruce Richardson
2017-09-04 9:27 ` Ananyev, Konstantin
2017-09-04 5:57 ` [dpdk-dev] [PATCH v2 4/4] testpmd: add flexibility to mbuf allocation Zhiyong Yang
2017-09-09 14:47 ` [dpdk-dev] [PATCH v3 0/4] increase port_id range Zhiyong Yang
2017-09-09 14:47 ` [dpdk-dev] [PATCH v3 1/4] ethdev: " Zhiyong Yang
2017-09-11 9:37 ` Adrien Mazarguil [this message]
2017-09-11 10:51 ` Yang, Zhiyong
2017-09-11 10:21 ` Ferruh Yigit
2017-09-13 2:26 ` Yang, Zhiyong
2017-09-13 11:56 ` Ferruh Yigit
2017-09-13 12:15 ` Yang, Zhiyong
2017-09-13 12:18 ` Thomas Monjalon
2017-09-13 13:33 ` Ferruh Yigit
2017-09-19 6:05 ` Yang, Zhiyong
2017-09-19 12:30 ` Wiles, Keith
2017-09-14 12:49 ` Ferruh Yigit
2017-09-15 5:11 ` Yang, Zhiyong
2017-09-09 14:47 ` [dpdk-dev] [PATCH v3 2/4] test: " Zhiyong Yang
2017-09-09 14:47 ` [dpdk-dev] [PATCH v3 3/4] examples: " Zhiyong Yang
2017-09-14 14:41 ` Ferruh Yigit
2017-09-09 14:47 ` [dpdk-dev] [PATCH v3 4/4] librte_mbuf: modify port initialization value Zhiyong Yang
2017-09-11 10:23 ` [dpdk-dev] [PATCH v3 0/4] increase port_id range Ferruh Yigit
2017-09-11 11:25 ` Yang, Zhiyong
2017-09-13 8:14 ` Matej Vido
2017-09-13 8:21 ` Yang, Zhiyong
2017-09-18 14:54 ` Laatz, Kevin
2017-09-19 1:39 ` Yang, Zhiyong
2017-09-11 10:26 ` Ferruh Yigit
2017-09-11 10:55 ` Yang, Zhiyong
2017-09-11 11:24 ` Ferruh Yigit
2017-09-21 8:32 ` [dpdk-dev] [PATCH v4 0/5] " Zhiyong Yang
2017-09-21 8:32 ` [dpdk-dev] [PATCH v4 1/5] net/bonding: remove bonding APIs using ABI versioning Zhiyong Yang
2017-09-21 10:36 ` Ferruh Yigit
2017-09-22 2:02 ` Yang, Zhiyong
2017-09-21 8:32 ` [dpdk-dev] [PATCH v4 2/5] ethdev: increase port_id range Zhiyong Yang
2017-09-21 11:49 ` Adrien Mazarguil
2017-10-06 14:34 ` Nélio Laranjeiro
2017-09-21 8:32 ` [dpdk-dev] [PATCH v4 3/5] examples: " Zhiyong Yang
2017-09-21 8:32 ` [dpdk-dev] [PATCH v4 4/5] test: " Zhiyong Yang
2017-09-21 8:32 ` [dpdk-dev] [PATCH v4 5/5] librte_mbuf: modify port initialization value Zhiyong Yang
2017-09-25 3:22 ` [dpdk-dev] [PATCH v5 0/5] increase port_id range Zhiyong Yang
2017-09-25 3:22 ` [dpdk-dev] [PATCH v5 1/5] net/bonding: remove bonding APIs using ABI versioning Zhiyong Yang
2017-09-25 11:34 ` Ferruh Yigit
2017-09-25 3:22 ` [dpdk-dev] [PATCH v5 2/5] ethdev: increase port_id range Zhiyong Yang
2017-09-25 11:37 ` Ferruh Yigit
2017-09-25 12:06 ` Ferruh Yigit
2017-09-26 7:01 ` Yang, Zhiyong
2017-09-27 18:44 ` Ferruh Yigit
2017-09-28 2:12 ` Yang, Zhiyong
2017-09-25 3:22 ` [dpdk-dev] [PATCH v5 3/5] examples: " Zhiyong Yang
2017-09-25 3:22 ` [dpdk-dev] [PATCH v5 4/5] test: " Zhiyong Yang
2017-09-25 3:22 ` [dpdk-dev] [PATCH v5 5/5] librte_mbuf: modify port initialization value Zhiyong Yang
2017-09-29 7:17 ` [dpdk-dev] [PATCH v6 0/5] increase port_id range Zhiyong Yang
2017-09-29 7:17 ` [dpdk-dev] [PATCH v6 1/5] net/bonding: remove bonding APIs using ABI versioning Zhiyong Yang
2017-09-29 7:17 ` [dpdk-dev] [PATCH v6 2/5] ethdev: increase port_id range Zhiyong Yang
2017-09-29 7:17 ` [dpdk-dev] [PATCH v6 3/5] examples: " Zhiyong Yang
2017-09-29 7:17 ` [dpdk-dev] [PATCH v6 4/5] test: " Zhiyong Yang
2017-09-29 7:17 ` [dpdk-dev] [PATCH v6 5/5] librte_mbuf: modify port initialization value Zhiyong Yang
2017-10-06 2:15 ` [dpdk-dev] [PATCH v6 0/5] increase port_id range Ferruh Yigit
2017-10-06 13:31 ` Gaëtan Rivet
2017-10-06 14:29 ` Thomas Monjalon
2017-10-06 16:02 ` Thomas Monjalon
2017-10-11 21:21 ` Ferruh Yigit
2017-10-12 1:33 ` Yang, Zhiyong
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