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Message-ID: <56970F48.9060504@huawei.com>
Date: Thu, 14 Jan 2016 11:00:24 +0800
From: Yisen Zhuang <Yisen.zhuang@...wei.com>
To: Kejian Yan <yankejian@...wei.com>, <davem@...emloft.net>,
<robh+dt@...nel.org>, <pawel.moll@....com>, <mark.rutland@....com>,
<ijc+devicetree@...lion.org.uk>, <galak@...eaurora.org>,
<catalin.marinas@....com>, <will.deacon@....com>,
<huangdaode@...ilicon.com>, <liguozhu@...wei.com>, <arnd@...db.de>,
<fengguang.wu@...el.com>, <salil.mehta@...wei.com>,
<andriy.shevchenko@...ux.intel.com>, <lisheng011@...wei.com>
CC: <devicetree@...r.kernel.org>, <netdev@...r.kernel.org>,
<linuxarm@...wei.com>, <linux-kernel@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v2 next-next] net: hns: enet specifies a reference to dsaf
在 2016/1/13 11:14, Kejian Yan 写道:
> This patch replace the assoication between dsaf and enet from string
> matching to object reference. It requires the DTS to be updated within
> BIOS. Thanks god it can be done for all released boards.
>
Hi kejian,
This patch is fine to me.
Many thanks,
Yisen
> Signed-off-by: Kejian Yan <yankejian@...wei.com>
> ---
> change log:
> v2:
> merge the two patches into one to allow bisection.
>
> v1:
> first submit.
>
> v1 patch reference:
> https://lkml.org/lkml/2015/12/5/11
> https://lkml.org/lkml/2015/12/5/12
> ---
> .../devicetree/bindings/net/hisilicon-hns-dsaf.txt | 5 +----
> .../devicetree/bindings/net/hisilicon-hns-nic.txt | 7 ++++---
> arch/arm64/boot/dts/hisilicon/hip05_hns.dtsi | 19 +++++++++----------
> drivers/net/ethernet/hisilicon/hns/hnae.c | 17 +++++++----------
> drivers/net/ethernet/hisilicon/hns/hnae.h | 7 +++++--
> drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c | 4 ++++
> drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c | 10 +---------
> drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.h | 1 +
> drivers/net/ethernet/hisilicon/hns/hns_enet.c | 13 +++++++++----
> drivers/net/ethernet/hisilicon/hns/hns_enet.h | 2 +-
> 10 files changed, 42 insertions(+), 43 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/net/hisilicon-hns-dsaf.txt b/Documentation/devicetree/bindings/net/hisilicon-hns-dsaf.txt
> index 80411b2..ecacfa4 100644
> --- a/Documentation/devicetree/bindings/net/hisilicon-hns-dsaf.txt
> +++ b/Documentation/devicetree/bindings/net/hisilicon-hns-dsaf.txt
> @@ -4,8 +4,6 @@ Required properties:
> - compatible: should be "hisilicon,hns-dsaf-v1" or "hisilicon,hns-dsaf-v2".
> "hisilicon,hns-dsaf-v1" is for hip05.
> "hisilicon,hns-dsaf-v2" is for Hi1610 and Hi1612.
> -- dsa-name: dsa fabric name who provide this interface.
> - should be "dsafX", X is the dsaf id.
> - mode: dsa fabric mode string. only support one of dsaf modes like these:
> "2port-64vf",
> "6port-16rss",
> @@ -26,9 +24,8 @@ Required properties:
>
> Example:
>
> -dsa: dsa@...00000 {
> +dsaf0: dsa@...00000 {
> compatible = "hisilicon,hns-dsaf-v1";
> - dsa_name = "dsaf0";
> mode = "6port-16rss";
> interrupt-parent = <&mbigen_dsa>;
> reg = <0x0 0xC0000000 0x0 0x420000
> diff --git a/Documentation/devicetree/bindings/net/hisilicon-hns-nic.txt b/Documentation/devicetree/bindings/net/hisilicon-hns-nic.txt
> index 41d19be..e6a9d1c 100644
> --- a/Documentation/devicetree/bindings/net/hisilicon-hns-nic.txt
> +++ b/Documentation/devicetree/bindings/net/hisilicon-hns-nic.txt
> @@ -4,8 +4,9 @@ Required properties:
> - compatible: "hisilicon,hns-nic-v1" or "hisilicon,hns-nic-v2".
> "hisilicon,hns-nic-v1" is for hip05.
> "hisilicon,hns-nic-v2" is for Hi1610 and Hi1612.
> -- ae-name: accelerator name who provides this interface,
> - is simply a name referring to the name of name in the accelerator node.
> +- ae-handle: accelerator engine handle for hns,
> + specifies a reference to the associating hardware driver node.
> + see Documentation/devicetree/bindings/net/hisilicon-hns-dsaf.txt
> - port-id: is the index of port provided by DSAF (the accelerator). DSAF can
> connect to 8 PHYs. Port 0 to 1 are both used for adminstration purpose. They
> are called debug ports.
> @@ -41,7 +42,7 @@ Example:
>
> ethernet@0{
> compatible = "hisilicon,hns-nic-v1";
> - ae-name = "dsaf0";
> + ae-handle = <&dsaf0>;
> port-id = <0>;
> local-mac-address = [a2 14 e4 4b 56 76];
> };
> diff --git a/arch/arm64/boot/dts/hisilicon/hip05_hns.dtsi b/arch/arm64/boot/dts/hisilicon/hip05_hns.dtsi
> index 606dd5a..89c883e 100644
> --- a/arch/arm64/boot/dts/hisilicon/hip05_hns.dtsi
> +++ b/arch/arm64/boot/dts/hisilicon/hip05_hns.dtsi
> @@ -23,9 +23,8 @@ soc0: soc@...000000 {
> };
> };
>
> - dsa: dsa@...00000 {
> + dsaf0: dsa@...00000 {
> compatible = "hisilicon,hns-dsaf-v1";
> - dsa_name = "dsaf0";
> mode = "6port-16rss";
> interrupt-parent = <&mbigen_dsa>;
>
> @@ -127,7 +126,7 @@ soc0: soc@...000000 {
>
> eth0: ethernet@0{
> compatible = "hisilicon,hns-nic-v1";
> - ae-name = "dsaf0";
> + ae-handle = <&dsaf0>;
> port-id = <0>;
> local-mac-address = [00 00 00 01 00 58];
> status = "disabled";
> @@ -135,14 +134,14 @@ soc0: soc@...000000 {
> };
> eth1: ethernet@1{
> compatible = "hisilicon,hns-nic-v1";
> - ae-name = "dsaf0";
> + ae-handle = <&dsaf0>;
> port-id = <1>;
> status = "disabled";
> dma-coherent;
> };
> eth2: ethernet@2{
> compatible = "hisilicon,hns-nic-v1";
> - ae-name = "dsaf0";
> + ae-handle = <&dsaf0>;
> port-id = <2>;
> local-mac-address = [00 00 00 01 00 5a];
> status = "disabled";
> @@ -150,7 +149,7 @@ soc0: soc@...000000 {
> };
> eth3: ethernet@3{
> compatible = "hisilicon,hns-nic-v1";
> - ae-name = "dsaf0";
> + ae-handle = <&dsaf0>;
> port-id = <3>;
> local-mac-address = [00 00 00 01 00 5b];
> status = "disabled";
> @@ -158,7 +157,7 @@ soc0: soc@...000000 {
> };
> eth4: ethernet@4{
> compatible = "hisilicon,hns-nic-v1";
> - ae-name = "dsaf0";
> + ae-handle = <&dsaf0>;
> port-id = <4>;
> local-mac-address = [00 00 00 01 00 5c];
> status = "disabled";
> @@ -166,7 +165,7 @@ soc0: soc@...000000 {
> };
> eth5: ethernet@5{
> compatible = "hisilicon,hns-nic-v1";
> - ae-name = "dsaf0";
> + ae-handle = <&dsaf0>;
> port-id = <5>;
> local-mac-address = [00 00 00 01 00 5d];
> status = "disabled";
> @@ -174,7 +173,7 @@ soc0: soc@...000000 {
> };
> eth6: ethernet@6{
> compatible = "hisilicon,hns-nic-v1";
> - ae-name = "dsaf0";
> + ae-handle = <&dsaf0>;
> port-id = <6>;
> local-mac-address = [00 00 00 01 00 5e];
> status = "disabled";
> @@ -182,7 +181,7 @@ soc0: soc@...000000 {
> };
> eth7: ethernet@7{
> compatible = "hisilicon,hns-nic-v1";
> - ae-name = "dsaf0";
> + ae-handle = <&dsaf0>;
> port-id = <7>;
> local-mac-address = [00 00 00 01 00 5f];
> status = "disabled";
> diff --git a/drivers/net/ethernet/hisilicon/hns/hnae.c b/drivers/net/ethernet/hisilicon/hns/hnae.c
> index b364529..3bfe36f 100644
> --- a/drivers/net/ethernet/hisilicon/hns/hnae.c
> +++ b/drivers/net/ethernet/hisilicon/hns/hnae.c
> @@ -95,21 +95,17 @@ static struct hnae_buf_ops hnae_bops = {
> static int __ae_match(struct device *dev, const void *data)
> {
> struct hnae_ae_dev *hdev = cls_to_ae_dev(dev);
> - const char *ae_id = data;
>
> - if (!strncmp(ae_id, hdev->name, AE_NAME_SIZE))
> - return 1;
> -
> - return 0;
> + return hdev->dev->of_node == data;
> }
>
> -static struct hnae_ae_dev *find_ae(const char *ae_id)
> +static struct hnae_ae_dev *find_ae(const struct device_node *ae_node)
> {
> struct device *dev;
>
> - WARN_ON(!ae_id);
> + WARN_ON(!ae_node);
>
> - dev = class_find_device(hnae_class, NULL, ae_id, __ae_match);
> + dev = class_find_device(hnae_class, NULL, ae_node, __ae_match);
>
> return dev ? cls_to_ae_dev(dev) : NULL;
> }
> @@ -316,7 +312,8 @@ EXPORT_SYMBOL(hnae_reinit_handle);
> * return handle ptr or ERR_PTR
> */
> struct hnae_handle *hnae_get_handle(struct device *owner_dev,
> - const char *ae_id, u32 port_id,
> + const struct device_node *ae_node,
> + u32 port_id,
> struct hnae_buf_ops *bops)
> {
> struct hnae_ae_dev *dev;
> @@ -324,7 +321,7 @@ struct hnae_handle *hnae_get_handle(struct device *owner_dev,
> int i, j;
> int ret;
>
> - dev = find_ae(ae_id);
> + dev = find_ae(ae_node);
> if (!dev)
> return ERR_PTR(-ENODEV);
>
> diff --git a/drivers/net/ethernet/hisilicon/hns/hnae.h b/drivers/net/ethernet/hisilicon/hns/hnae.h
> index 6ca94dc..1cbcb9f 100644
> --- a/drivers/net/ethernet/hisilicon/hns/hnae.h
> +++ b/drivers/net/ethernet/hisilicon/hns/hnae.h
> @@ -524,8 +524,11 @@ struct hnae_handle {
>
> #define ring_to_dev(ring) ((ring)->q->dev->dev)
>
> -struct hnae_handle *hnae_get_handle(struct device *owner_dev, const char *ae_id,
> - u32 port_id, struct hnae_buf_ops *bops);
> +struct hnae_handle *hnae_get_handle(struct device *owner_dev,
> + const struct device_node *ae_node,
> + u32 port_id,
> + struct hnae_buf_ops *bops);
> +
> void hnae_put_handle(struct hnae_handle *handle);
> int hnae_ae_register(struct hnae_ae_dev *dev, struct module *owner);
> void hnae_ae_unregister(struct hnae_ae_dev *dev);
> diff --git a/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c b/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c
> index 522b264..a0070d0 100644
> --- a/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c
> +++ b/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c
> @@ -847,6 +847,7 @@ static struct hnae_ae_ops hns_dsaf_ops = {
> int hns_dsaf_ae_init(struct dsaf_device *dsaf_dev)
> {
> struct hnae_ae_dev *ae_dev = &dsaf_dev->ae_dev;
> + static atomic_t id = ATOMIC_INIT(-1);
>
> switch (dsaf_dev->dsaf_ver) {
> case AE_VERSION_1:
> @@ -858,6 +859,9 @@ int hns_dsaf_ae_init(struct dsaf_device *dsaf_dev)
> default:
> break;
> }
> +
> + snprintf(ae_dev->name, AE_NAME_SIZE, "%s%d", DSAF_DEVICE_NAME,
> + (int)atomic_inc_return(&id));
> ae_dev->ops = &hns_dsaf_ops;
> ae_dev->dev = dsaf_dev->dev;
>
> diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c
> index 1c33bd0..9439f04 100644
> --- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c
> +++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c
> @@ -35,7 +35,7 @@ int hns_dsaf_get_cfg(struct dsaf_device *dsaf_dev)
> int ret, i;
> u32 desc_num;
> u32 buf_size;
> - const char *name, *mode_str;
> + const char *mode_str;
> struct device_node *np = dsaf_dev->dev->of_node;
>
> if (of_device_is_compatible(np, "hisilicon,hns-dsaf-v1"))
> @@ -43,14 +43,6 @@ int hns_dsaf_get_cfg(struct dsaf_device *dsaf_dev)
> else
> dsaf_dev->dsaf_ver = AE_VERSION_2;
>
> - ret = of_property_read_string(np, "dsa_name", &name);
> - if (ret) {
> - dev_err(dsaf_dev->dev, "get dsaf name fail, ret=%d!\n", ret);
> - return ret;
> - }
> - strncpy(dsaf_dev->ae_dev.name, name, AE_NAME_SIZE);
> - dsaf_dev->ae_dev.name[AE_NAME_SIZE - 1] = '\0';
> -
> ret = of_property_read_string(np, "mode", &mode_str);
> if (ret) {
> dev_err(dsaf_dev->dev, "get dsaf mode fail, ret=%d!\n", ret);
> diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.h b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.h
> index 31c312f..40205b9 100644
> --- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.h
> +++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.h
> @@ -18,6 +18,7 @@ struct hns_mac_cb;
>
> #define DSAF_DRV_NAME "hns_dsaf"
> #define DSAF_MOD_VERSION "v1.0"
> +#define DSAF_DEVICE_NAME "dsaf"
>
> #define HNS_DSAF_DEBUG_NW_REG_OFFSET 0x100000
>
> diff --git a/drivers/net/ethernet/hisilicon/hns/hns_enet.c b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
> index 0e30846..340ca54 100644
> --- a/drivers/net/ethernet/hisilicon/hns/hns_enet.c
> +++ b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
> @@ -1802,7 +1802,7 @@ static int hns_nic_try_get_ae(struct net_device *ndev)
> int ret;
>
> h = hnae_get_handle(&priv->netdev->dev,
> - priv->ae_name, priv->port_id, NULL);
> + priv->ae_node, priv->port_id, NULL);
> if (IS_ERR_OR_NULL(h)) {
> ret = PTR_ERR(h);
> dev_dbg(priv->dev, "has not handle, register notifier!\n");
> @@ -1880,9 +1880,12 @@ static int hns_nic_dev_probe(struct platform_device *pdev)
> else
> priv->enet_ver = AE_VERSION_2;
>
> - ret = of_property_read_string(node, "ae-name", &priv->ae_name);
> - if (ret)
> - goto out_read_string_fail;
> + priv->ae_node = (void *)of_parse_phandle(node, "ae-handle", 0);
> + if (IS_ERR_OR_NULL(priv->ae_node)) {
> + ret = PTR_ERR(priv->ae_node);
> + dev_err(dev, "not find ae-handle\n");
> + goto out_read_handle_fai;
> + }
>
> ret = of_property_read_u32(node, "port-id", &priv->port_id);
> if (ret)
> @@ -1945,6 +1948,8 @@ static int hns_nic_dev_probe(struct platform_device *pdev)
>
> out_notify_fail:
> (void)cancel_work_sync(&priv->service_task);
> +out_read_handle_fai:
> +
> out_read_string_fail:
> free_netdev(ndev);
> return ret;
> diff --git a/drivers/net/ethernet/hisilicon/hns/hns_enet.h b/drivers/net/ethernet/hisilicon/hns/hns_enet.h
> index 4b75270..c68ab3d 100644
> --- a/drivers/net/ethernet/hisilicon/hns/hns_enet.h
> +++ b/drivers/net/ethernet/hisilicon/hns/hns_enet.h
> @@ -51,7 +51,7 @@ struct hns_nic_ops {
> };
>
> struct hns_nic_priv {
> - const char *ae_name;
> + const struct device_node *ae_node;
> u32 enet_ver;
> u32 port_id;
> int phy_mode;
>
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