[{"id":1865287,"web_url":"http://patchwork.ozlabs.org/comment/1865287/","msgid":"","list_archive_url":null,"date":"2018-02-27T22:33:17","subject":"Re: [Qemu-devel] [PATCH v5 3/7] hw/mdio: Generalize phy\n\tinitialization routine","submitter":{"id":47878,"url":"http://patchwork.ozlabs.org/api/people/47878/","name":"Alistair Francis","email":"alistair.francis@xilinx.com"},"content":"On Fri, Sep 22, 2017 at 10:13 AM, Philippe Mathieu-Daudé\n wrote:\n> From: Grant Likely \n>\n> There really isn't anything tdk-specific about tdk_init() other than the\n> phy id registers. The function should instead be generalized for any\n> phy, at least as far as the ID registers are concerned. For the most\n> part the read/write behaviour should be very similar across PHYs.\n>\n> This patch renames tdk_{read,write,init}() to mdio_phy_*() so it can be\n> used for any PHY.\n>\n> More work definitely needs to be done here to make it easy to override\n> the default behaviour for specific PHYs, but this at least is a\n> reasonable start.\n>\n> Signed-off-by: Grant Likely \n> Signed-off-by: Philippe Mathieu-Daudé \n> [PMD: just rebased]\n> ---\n> include/hw/net/mdio.h | 2 +-\n> hw/net/etraxfs_eth.c | 2 +-\n> hw/net/mdio.c | 14 +++++++-------\n> hw/net/xilinx_axienet.c | 2 +-\n> 4 files changed, 10 insertions(+), 10 deletions(-)\n>\n> diff --git a/include/hw/net/mdio.h b/include/hw/net/mdio.h\n> index 7ffa4389b9..b3b4f497c0 100644\n> --- a/include/hw/net/mdio.h\n> +++ b/include/hw/net/mdio.h\n> @@ -86,7 +86,7 @@ struct qemu_mdio {\n> struct qemu_phy *devs[32];\n> };\n>\n> -void tdk_init(struct qemu_phy *phy);\n> +void mdio_phy_init(struct qemu_phy *phy, uint16_t id1, uint16_t id2);\n> void mdio_attach(struct qemu_mdio *bus, struct qemu_phy *phy,\n> unsigned int addr);\n> uint16_t mdio_read_req(struct qemu_mdio *bus, uint8_t addr, uint8_t req);\n> diff --git a/hw/net/etraxfs_eth.c b/hw/net/etraxfs_eth.c\n> index f8d8f8441d..4c5415771f 100644\n> --- a/hw/net/etraxfs_eth.c\n> +++ b/hw/net/etraxfs_eth.c\n> @@ -333,7 +333,7 @@ static int fs_eth_init(SysBusDevice *sbd)\n> qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a);\n>\n>\n> - tdk_init(&s->phy);\n> + mdio_phy_init(&s->phy, 0x0300, 0xe400);\n> mdio_attach(&s->mdio_bus, &s->phy, s->phyaddr);\n> return 0;\n> }\n> diff --git a/hw/net/mdio.c b/hw/net/mdio.c\n> index 3d70d99077..33bfbb4623 100644\n> --- a/hw/net/mdio.c\n> +++ b/hw/net/mdio.c\n> @@ -43,7 +43,7 @@\n> * linux driver (PHYID and Diagnostics reg).\n> * TODO: Add friendly names for the register nums.\n> */\n> -static unsigned int tdk_read(struct qemu_phy *phy, unsigned int req)\n> +static unsigned int mdio_phy_read(struct qemu_phy *phy, unsigned int req)\n> {\n> int regnum;\n> unsigned r = 0;\n> @@ -107,7 +107,7 @@ static unsigned int tdk_read(struct qemu_phy *phy, unsigned int req)\n> return r;\n> }\n>\n> -static void tdk_write(struct qemu_phy *phy, unsigned int req, unsigned int data)\n> +static void mdio_phy_write(struct qemu_phy *phy, unsigned int req, unsigned int data)\n> {\n> int regnum;\n>\n> @@ -120,18 +120,18 @@ static void tdk_write(struct qemu_phy *phy, unsigned int req, unsigned int data)\n> }\n> }\n>\n> -void tdk_init(struct qemu_phy *phy)\n> +void mdio_phy_init(struct qemu_phy *phy, uint16_t id1, uint16_t id2)\n> {\n> phy->regs[PHY_CTRL] = 0x3100;\n> /* PHY Id. */\n> - phy->regs[PHY_ID1] = 0x0300;\n> - phy->regs[PHY_ID2] = 0xe400;\n> + phy->regs[PHY_ID1] = id1;\n> + phy->regs[PHY_ID2] = id2;\n\nThese should be set by QEMU properties instead of values to the init() function.\n\nAlistair\n\n> /* Autonegotiation advertisement reg. */\n> phy->regs[PHY_AUTONEG_ADV] = 0x01e1;\n> phy->link = 1;\n>\n> - phy->read = tdk_read;\n> - phy->write = tdk_write;\n> + phy->read = mdio_phy_read;\n> + phy->write = mdio_phy_write;\n> }\n>\n> void mdio_attach(struct qemu_mdio *bus, struct qemu_phy *phy, unsigned int addr)\n> diff --git a/hw/net/xilinx_axienet.c b/hw/net/xilinx_axienet.c\n> index 1e859fdaae..408cd6e675 100644\n> --- a/hw/net/xilinx_axienet.c\n> +++ b/hw/net/xilinx_axienet.c\n> @@ -791,7 +791,7 @@ static void xilinx_enet_realize(DeviceState *dev, Error **errp)\n> object_get_typename(OBJECT(dev)), dev->id, s);\n> qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a);\n>\n> - tdk_init(&s->TEMAC.phy);\n> + mdio_phy_init(&s->TEMAC.phy, 0x0300, 0xe400);\n> mdio_attach(&s->TEMAC.mdio_bus, &s->TEMAC.phy, s->c_phyaddr);\n>\n> s->TEMAC.parent = s;\n> --\n> 2.14.1\n>\n>","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@bilbo.ozlabs.org","Authentication-Results":["ozlabs.org;\n\tspf=pass (mailfrom) smtp.mailfrom=nongnu.org\n\t(client-ip=2001:4830:134:3::11; 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charset=\"UTF-8\"","Content-Transfer-Encoding":"quoted-printable","X-detected-operating-system":"by eggs.gnu.org: Genre and OS details not\n\trecognized.","X-Received-From":"2a00:1450:4010:c07::242","Subject":"Re: [Qemu-devel] [PATCH v5 3/7] hw/mdio: Generalize phy\n\tinitialization routine","X-BeenThere":"qemu-devel@nongnu.org","X-Mailman-Version":"2.1.21","Precedence":"list","List-Id":"","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","Cc":"Peter Maydell , Fam Zheng ,\n\tJason Wang , \"qemu-devel@nongnu.org Developers\"\n\t, \n\tAlistair Francis , Grant Likely\n\t, qemu-arm , \"Edgar E.\n\tIglesias\" , =?utf-8?q?Andreas_F=C3=A4rber?=\n\t","Errors-To":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org","Sender":"\"Qemu-devel\"\n\t"}},{"id":1921931,"web_url":"http://patchwork.ozlabs.org/comment/1921931/","msgid":"<9c754e08-d7ed-bea9-cd22-92d8a57e6335@amsat.org>","list_archive_url":null,"date":"2018-05-28T03:09:34","subject":"Re: [Qemu-devel] [PATCH v5 3/7] hw/mdio: Generalize phy\n\tinitialization routine","submitter":{"id":70924,"url":"http://patchwork.ozlabs.org/api/people/70924/","name":"Philippe Mathieu-Daudé","email":"f4bug@amsat.org"},"content":"Hi Alistair,\n\nOn 02/27/2018 07:33 PM, Alistair Francis wrote:\n> On Fri, Sep 22, 2017 at 10:13 AM, Philippe Mathieu-Daudé\n> wrote:\n>> From: Grant Likely \n>>\n>> There really isn't anything tdk-specific about tdk_init() other than the\n>> phy id registers. The function should instead be generalized for any\n>> phy, at least as far as the ID registers are concerned. For the most\n>> part the read/write behaviour should be very similar across PHYs.\n>>\n>> This patch renames tdk_{read,write,init}() to mdio_phy_*() so it can be\n>> used for any PHY.\n>>\n>> More work definitely needs to be done here to make it easy to override\n>> the default behaviour for specific PHYs, but this at least is a\n>> reasonable start.\n>>\n>> Signed-off-by: Grant Likely \n>> Signed-off-by: Philippe Mathieu-Daudé \n>> [PMD: just rebased]\n>> ---\n>> include/hw/net/mdio.h | 2 +-\n>> hw/net/etraxfs_eth.c | 2 +-\n>> hw/net/mdio.c | 14 +++++++-------\n>> hw/net/xilinx_axienet.c | 2 +-\n>> 4 files changed, 10 insertions(+), 10 deletions(-)\n>>\n>> diff --git a/include/hw/net/mdio.h b/include/hw/net/mdio.h\n>> index 7ffa4389b9..b3b4f497c0 100644\n>> --- a/include/hw/net/mdio.h\n>> +++ b/include/hw/net/mdio.h\n>> @@ -86,7 +86,7 @@ struct qemu_mdio {\n>> struct qemu_phy *devs[32];\n>> };\n>>\n>> -void tdk_init(struct qemu_phy *phy);\n>> +void mdio_phy_init(struct qemu_phy *phy, uint16_t id1, uint16_t id2);\n>> void mdio_attach(struct qemu_mdio *bus, struct qemu_phy *phy,\n>> unsigned int addr);\n>> uint16_t mdio_read_req(struct qemu_mdio *bus, uint8_t addr, uint8_t req);\n>> diff --git a/hw/net/etraxfs_eth.c b/hw/net/etraxfs_eth.c\n>> index f8d8f8441d..4c5415771f 100644\n>> --- a/hw/net/etraxfs_eth.c\n>> +++ b/hw/net/etraxfs_eth.c\n>> @@ -333,7 +333,7 @@ static int fs_eth_init(SysBusDevice *sbd)\n>> qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a);\n>>\n>>\n>> - tdk_init(&s->phy);\n>> + mdio_phy_init(&s->phy, 0x0300, 0xe400);\n>> mdio_attach(&s->mdio_bus, &s->phy, s->phyaddr);\n>> return 0;\n>> }\n>> diff --git a/hw/net/mdio.c b/hw/net/mdio.c\n>> index 3d70d99077..33bfbb4623 100644\n>> --- a/hw/net/mdio.c\n>> +++ b/hw/net/mdio.c\n>> @@ -43,7 +43,7 @@\n>> * linux driver (PHYID and Diagnostics reg).\n>> * TODO: Add friendly names for the register nums.\n>> */\n>> -static unsigned int tdk_read(struct qemu_phy *phy, unsigned int req)\n>> +static unsigned int mdio_phy_read(struct qemu_phy *phy, unsigned int req)\n>> {\n>> int regnum;\n>> unsigned r = 0;\n>> @@ -107,7 +107,7 @@ static unsigned int tdk_read(struct qemu_phy *phy, unsigned int req)\n>> return r;\n>> }\n>>\n>> -static void tdk_write(struct qemu_phy *phy, unsigned int req, unsigned int data)\n>> +static void mdio_phy_write(struct qemu_phy *phy, unsigned int req, unsigned int data)\n>> {\n>> int regnum;\n>>\n>> @@ -120,18 +120,18 @@ static void tdk_write(struct qemu_phy *phy, unsigned int req, unsigned int data)\n>> }\n>> }\n>>\n>> -void tdk_init(struct qemu_phy *phy)\n>> +void mdio_phy_init(struct qemu_phy *phy, uint16_t id1, uint16_t id2)\n>> {\n>> phy->regs[PHY_CTRL] = 0x3100;\n>> /* PHY Id. */\n>> - phy->regs[PHY_ID1] = 0x0300;\n>> - phy->regs[PHY_ID2] = 0xe400;\n>> + phy->regs[PHY_ID1] = id1;\n>> + phy->regs[PHY_ID2] = id2;\n> \n> These should be set by QEMU properties instead of values to the init() function.\n\nI agree, but this is not (yet) a QOM'ified device.\nI believe if I start to QOM'ify it this series will finish in 1 more\nyear. This is however a nice cleanup so far, and the QOM device can come\nin a follow up series.\n\n> \n> Alistair\n> \n>> /* Autonegotiation advertisement reg. */\n>> phy->regs[PHY_AUTONEG_ADV] = 0x01e1;\n>> phy->link = 1;\n>>\n>> - phy->read = tdk_read;\n>> - phy->write = tdk_write;\n>> + phy->read = mdio_phy_read;\n>> + phy->write = mdio_phy_write;\n>> }\n>>\n>> void mdio_attach(struct qemu_mdio *bus, struct qemu_phy *phy, unsigned int addr)\n>> diff --git a/hw/net/xilinx_axienet.c b/hw/net/xilinx_axienet.c\n>> index 1e859fdaae..408cd6e675 100644\n>> --- a/hw/net/xilinx_axienet.c\n>> +++ b/hw/net/xilinx_axienet.c\n>> @@ -791,7 +791,7 @@ static void xilinx_enet_realize(DeviceState *dev, Error **errp)\n>> object_get_typename(OBJECT(dev)), dev->id, s);\n>> qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a);\n>>\n>> - tdk_init(&s->TEMAC.phy);\n>> + mdio_phy_init(&s->TEMAC.phy, 0x0300, 0xe400);\n>> mdio_attach(&s->TEMAC.mdio_bus, &s->TEMAC.phy, s->c_phyaddr);\n>>\n>> s->TEMAC.parent = s;\n>> --\n>> 2.14.1\n>>\n>>","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@bilbo.ozlabs.org","Authentication-Results":["ozlabs.org;\n\tspf=pass (mailfrom) smtp.mailfrom=nongnu.org\n\t(client-ip=2001:4830:134:3::11; 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