diff mbox series

[net-next,v3,1/3] net: macb: Update gem PTP support check

Message ID	20230327110607.21964-2-harini.katakam@amd.com
State	New
Headers	Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Received-SPF: Pass (protection.outlook.com: domain of amd.com designates 165.204.84.17 as permitted sender) receiver=protection.outlook.com; client-ip=165.204.84.17; helo=SATLEXMB03.amd.com; pr=C From: Harini Katakam <harini.katakam@amd.com> To: <nicolas.ferre@microchip.com>, <davem@davemloft.net>, <richardcochran@gmail.com>, <claudiu.beznea@microchip.com>, <andrei.pistirica@microchip.com>, <kuba@kernel.org>, <edumazet@google.com>, <pabeni@redhat.com> CC: <netdev@vger.kernel.org>, <linux-kernel@vger.kernel.org>, <michal.simek@amd.com>, <harinikatakamlinux@gmail.com>, <harini.katakam@amd.com> Subject: [PATCH net-next v3 1/3] net: macb: Update gem PTP support check Date: Mon, 27 Mar 2023 16:36:05 +0530 Message-ID: <20230327110607.21964-2-harini.katakam@amd.com> In-Reply-To: <20230327110607.21964-1-harini.katakam@amd.com> References: <20230327110607.21964-1-harini.katakam@amd.com> MIME-Version: 1.0 Content-Type: text/plain Precedence: bulk
Series	Macb PTP minor updates \| [net-next,v3,0/3] Macb PTP minor updates [net-next,v3,1/3] net: macb: Update gem PTP support check [net-next,v3,2/3] net: macb: Enable PTP unicast [net-next,v3,3/3] net: macb: Optimize reading HW timestamp

Commit Message

Harini Katakam March 27, 2023, 11:06 a.m. UTC

  There are currently two checks for PTP functionality - one on GEM
capability and another on the kernel config option. Combine them
into a single function as there's no use case where gem_has_ptp is
TRUE and MACB_USE_HWSTAMP is false.

Signed-off-by: Harini Katakam <harini.katakam@amd.com>
---
v3:
New patch

 drivers/net/ethernet/cadence/macb.h      | 2 +-
 drivers/net/ethernet/cadence/macb_main.c | 2 --
 2 files changed, 1 insertion(+), 3 deletions(-)

Comments

kernel test robot March 27, 2023, 5:51 p.m. UTC | #1

Hi Harini,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on net-next/main]

url:    https://github.com/intel-lab-lkp/linux/commits/Harini-Katakam/net-macb-Update-gem-PTP-support-check/20230327-190937
patch link:    https://lore.kernel.org/r/20230327110607.21964-2-harini.katakam%40amd.com
patch subject: [PATCH net-next v3 1/3] net: macb: Update gem PTP support check
config: riscv-rv32_defconfig (https://download.01.org/0day-ci/archive/20230328/202303280125.0cmGPLT1-lkp@intel.com/config)
compiler: riscv32-linux-gcc (GCC) 12.1.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/intel-lab-lkp/linux/commit/0a2f03b6a91caa746dfd1b56b998534464dae83d
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Harini-Katakam/net-macb-Update-gem-PTP-support-check/20230327-190937
        git checkout 0a2f03b6a91caa746dfd1b56b998534464dae83d
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=riscv olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash drivers/net/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202303280125.0cmGPLT1-lkp@intel.com/

All errors (new ones prefixed by >>):

   drivers/net/ethernet/cadence/macb_main.c: In function 'macb_configure_caps':
>> drivers/net/ethernet/cadence/macb_main.c:3897:35: error: 'struct macb' has no member named 'hw_dma_cap'
    3897 |                                 bp->hw_dma_cap |= HW_DMA_CAP_PTP;
         |                                   ^~
>> drivers/net/ethernet/cadence/macb_main.c:3897:51: error: 'HW_DMA_CAP_PTP' undeclared (first use in this function)
    3897 |                                 bp->hw_dma_cap |= HW_DMA_CAP_PTP;
         |                                                   ^~~~~~~~~~~~~~
   drivers/net/ethernet/cadence/macb_main.c:3897:51: note: each undeclared identifier is reported only once for each function it appears in
>> drivers/net/ethernet/cadence/macb_main.c:3898:49: error: 'gem_ptp_info' undeclared (first use in this function); did you mean 'gem_ptp_init'?
    3898 |                                 bp->ptp_info = &gem_ptp_info;
         |                                                 ^~~~~~~~~~~~
         |                                                 gem_ptp_init


vim +3897 drivers/net/ethernet/cadence/macb_main.c

5f1fa992382cf8 drivers/net/macb.c                       Alexander Beregalov 2009-04-11  3866  
64ec42fe272322 drivers/net/ethernet/cadence/macb.c      Moritz Fischer      2016-03-29  3867  /* Configure peripheral capabilities according to device tree
e175587f4d32de drivers/net/ethernet/cadence/macb.c      Nicolas Ferre       2014-07-24  3868   * and integration options used
e175587f4d32de drivers/net/ethernet/cadence/macb.c      Nicolas Ferre       2014-07-24  3869   */
64ec42fe272322 drivers/net/ethernet/cadence/macb.c      Moritz Fischer      2016-03-29  3870  static void macb_configure_caps(struct macb *bp,
64ec42fe272322 drivers/net/ethernet/cadence/macb.c      Moritz Fischer      2016-03-29  3871  				const struct macb_config *dt_conf)
e175587f4d32de drivers/net/ethernet/cadence/macb.c      Nicolas Ferre       2014-07-24  3872  {
e175587f4d32de drivers/net/ethernet/cadence/macb.c      Nicolas Ferre       2014-07-24  3873  	u32 dcfg;
e175587f4d32de drivers/net/ethernet/cadence/macb.c      Nicolas Ferre       2014-07-24  3874  
f6970505defd0e drivers/net/ethernet/cadence/macb.c      Nicolas Ferre       2015-03-31  3875  	if (dt_conf)
f6970505defd0e drivers/net/ethernet/cadence/macb.c      Nicolas Ferre       2015-03-31  3876  		bp->caps = dt_conf->caps;
f6970505defd0e drivers/net/ethernet/cadence/macb.c      Nicolas Ferre       2015-03-31  3877  
f2ce8a9e48385f drivers/net/ethernet/cadence/macb.c      Andy Shevchenko     2015-07-24  3878  	if (hw_is_gem(bp->regs, bp->native_io)) {
e175587f4d32de drivers/net/ethernet/cadence/macb.c      Nicolas Ferre       2014-07-24  3879  		bp->caps |= MACB_CAPS_MACB_IS_GEM;
e175587f4d32de drivers/net/ethernet/cadence/macb.c      Nicolas Ferre       2014-07-24  3880  
e175587f4d32de drivers/net/ethernet/cadence/macb.c      Nicolas Ferre       2014-07-24  3881  		dcfg = gem_readl(bp, DCFG1);
e175587f4d32de drivers/net/ethernet/cadence/macb.c      Nicolas Ferre       2014-07-24  3882  		if (GEM_BFEXT(IRQCOR, dcfg) == 0)
e175587f4d32de drivers/net/ethernet/cadence/macb.c      Nicolas Ferre       2014-07-24  3883  			bp->caps |= MACB_CAPS_ISR_CLEAR_ON_WRITE;
e4e143e26ce8f5 drivers/net/ethernet/cadence/macb_main.c Parshuram Thombare  2020-10-29  3884  		if (GEM_BFEXT(NO_PCS, dcfg) == 0)
e4e143e26ce8f5 drivers/net/ethernet/cadence/macb_main.c Parshuram Thombare  2020-10-29  3885  			bp->caps |= MACB_CAPS_PCS;
e4e143e26ce8f5 drivers/net/ethernet/cadence/macb_main.c Parshuram Thombare  2020-10-29  3886  		dcfg = gem_readl(bp, DCFG12);
e4e143e26ce8f5 drivers/net/ethernet/cadence/macb_main.c Parshuram Thombare  2020-10-29  3887  		if (GEM_BFEXT(HIGH_SPEED, dcfg) == 1)
e4e143e26ce8f5 drivers/net/ethernet/cadence/macb_main.c Parshuram Thombare  2020-10-29  3888  			bp->caps |= MACB_CAPS_HIGH_SPEED;
e175587f4d32de drivers/net/ethernet/cadence/macb.c      Nicolas Ferre       2014-07-24  3889  		dcfg = gem_readl(bp, DCFG2);
e175587f4d32de drivers/net/ethernet/cadence/macb.c      Nicolas Ferre       2014-07-24  3890  		if ((dcfg & (GEM_BIT(RX_PKT_BUFF) | GEM_BIT(TX_PKT_BUFF))) == 0)
e175587f4d32de drivers/net/ethernet/cadence/macb.c      Nicolas Ferre       2014-07-24  3891  			bp->caps |= MACB_CAPS_FIFO_MODE;
ab91f0a9b5f4b9 drivers/net/ethernet/cadence/macb_main.c Rafal Ozieblo       2017-06-29  3892  		if (gem_has_ptp(bp)) {
7b4296148066f1 drivers/net/ethernet/cadence/macb.c      Rafal Ozieblo       2017-06-29  3893  			if (!GEM_BFEXT(TSU, gem_readl(bp, DCFG5)))
7897b071ac3b45 drivers/net/ethernet/cadence/macb_main.c Antoine Tenart      2019-11-13  3894  				dev_err(&bp->pdev->dev,
7897b071ac3b45 drivers/net/ethernet/cadence/macb_main.c Antoine Tenart      2019-11-13  3895  					"GEM doesn't support hardware ptp.\n");
ab91f0a9b5f4b9 drivers/net/ethernet/cadence/macb_main.c Rafal Ozieblo       2017-06-29  3896  			else {
7b4296148066f1 drivers/net/ethernet/cadence/macb.c      Rafal Ozieblo       2017-06-29 @3897  				bp->hw_dma_cap |= HW_DMA_CAP_PTP;
ab91f0a9b5f4b9 drivers/net/ethernet/cadence/macb_main.c Rafal Ozieblo       2017-06-29 @3898  				bp->ptp_info = &gem_ptp_info;
7b4296148066f1 drivers/net/ethernet/cadence/macb.c      Rafal Ozieblo       2017-06-29  3899  			}
e175587f4d32de drivers/net/ethernet/cadence/macb.c      Nicolas Ferre       2014-07-24  3900  		}
ab91f0a9b5f4b9 drivers/net/ethernet/cadence/macb_main.c Rafal Ozieblo       2017-06-29  3901  	}
e175587f4d32de drivers/net/ethernet/cadence/macb.c      Nicolas Ferre       2014-07-24  3902  
a35919e174350d drivers/net/ethernet/cadence/macb.c      Andy Shevchenko     2015-07-24  3903  	dev_dbg(&bp->pdev->dev, "Cadence caps 0x%08x\n", bp->caps);
e175587f4d32de drivers/net/ethernet/cadence/macb.c      Nicolas Ferre       2014-07-24  3904  }
e175587f4d32de drivers/net/ethernet/cadence/macb.c      Nicolas Ferre       2014-07-24  3905

kernel test robot March 27, 2023, 10:39 p.m. UTC | #2

Hi Harini,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on net-next/main]

url:    https://github.com/intel-lab-lkp/linux/commits/Harini-Katakam/net-macb-Update-gem-PTP-support-check/20230327-190937
patch link:    https://lore.kernel.org/r/20230327110607.21964-2-harini.katakam%40amd.com
patch subject: [PATCH net-next v3 1/3] net: macb: Update gem PTP support check
config: powerpc-randconfig-r021-20230327 (https://download.01.org/0day-ci/archive/20230328/202303280600.LarprmhI-lkp@intel.com/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project 67409911353323ca5edf2049ef0df54132fa1ca7)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install powerpc cross compiling tool for clang build
        # apt-get install binutils-powerpc-linux-gnu
        # https://github.com/intel-lab-lkp/linux/commit/0a2f03b6a91caa746dfd1b56b998534464dae83d
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Harini-Katakam/net-macb-Update-gem-PTP-support-check/20230327-190937
        git checkout 0a2f03b6a91caa746dfd1b56b998534464dae83d
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=powerpc olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=powerpc SHELL=/bin/bash drivers/net/ethernet/cadence/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202303280600.LarprmhI-lkp@intel.com/

All errors (new ones prefixed by >>):

>> drivers/net/ethernet/cadence/macb_main.c:3897:9: error: no member named 'hw_dma_cap' in 'struct macb'
                                   bp->hw_dma_cap |= HW_DMA_CAP_PTP;
                                   ~~  ^
>> drivers/net/ethernet/cadence/macb_main.c:3897:23: error: use of undeclared identifier 'HW_DMA_CAP_PTP'
                                   bp->hw_dma_cap |= HW_DMA_CAP_PTP;
                                                     ^
>> drivers/net/ethernet/cadence/macb_main.c:3898:21: error: use of undeclared identifier 'gem_ptp_info'; did you mean 'gem_ptp_init'?
                                   bp->ptp_info = &gem_ptp_info;
                                                   ^~~~~~~~~~~~
                                                   gem_ptp_init
   drivers/net/ethernet/cadence/macb.h:1352:20: note: 'gem_ptp_init' declared here
   static inline void gem_ptp_init(struct net_device *ndev) { }
                      ^
   3 errors generated.


vim +3897 drivers/net/ethernet/cadence/macb_main.c

5f1fa992382cf8 drivers/net/macb.c                       Alexander Beregalov 2009-04-11  3866  
64ec42fe272322 drivers/net/ethernet/cadence/macb.c      Moritz Fischer      2016-03-29  3867  /* Configure peripheral capabilities according to device tree
e175587f4d32de drivers/net/ethernet/cadence/macb.c      Nicolas Ferre       2014-07-24  3868   * and integration options used
e175587f4d32de drivers/net/ethernet/cadence/macb.c      Nicolas Ferre       2014-07-24  3869   */
64ec42fe272322 drivers/net/ethernet/cadence/macb.c      Moritz Fischer      2016-03-29  3870  static void macb_configure_caps(struct macb *bp,
64ec42fe272322 drivers/net/ethernet/cadence/macb.c      Moritz Fischer      2016-03-29  3871  				const struct macb_config *dt_conf)
e175587f4d32de drivers/net/ethernet/cadence/macb.c      Nicolas Ferre       2014-07-24  3872  {
e175587f4d32de drivers/net/ethernet/cadence/macb.c      Nicolas Ferre       2014-07-24  3873  	u32 dcfg;
e175587f4d32de drivers/net/ethernet/cadence/macb.c      Nicolas Ferre       2014-07-24  3874  
f6970505defd0e drivers/net/ethernet/cadence/macb.c      Nicolas Ferre       2015-03-31  3875  	if (dt_conf)
f6970505defd0e drivers/net/ethernet/cadence/macb.c      Nicolas Ferre       2015-03-31  3876  		bp->caps = dt_conf->caps;
f6970505defd0e drivers/net/ethernet/cadence/macb.c      Nicolas Ferre       2015-03-31  3877  
f2ce8a9e48385f drivers/net/ethernet/cadence/macb.c      Andy Shevchenko     2015-07-24  3878  	if (hw_is_gem(bp->regs, bp->native_io)) {
e175587f4d32de drivers/net/ethernet/cadence/macb.c      Nicolas Ferre       2014-07-24  3879  		bp->caps |= MACB_CAPS_MACB_IS_GEM;
e175587f4d32de drivers/net/ethernet/cadence/macb.c      Nicolas Ferre       2014-07-24  3880  
e175587f4d32de drivers/net/ethernet/cadence/macb.c      Nicolas Ferre       2014-07-24  3881  		dcfg = gem_readl(bp, DCFG1);
e175587f4d32de drivers/net/ethernet/cadence/macb.c      Nicolas Ferre       2014-07-24  3882  		if (GEM_BFEXT(IRQCOR, dcfg) == 0)
e175587f4d32de drivers/net/ethernet/cadence/macb.c      Nicolas Ferre       2014-07-24  3883  			bp->caps |= MACB_CAPS_ISR_CLEAR_ON_WRITE;
e4e143e26ce8f5 drivers/net/ethernet/cadence/macb_main.c Parshuram Thombare  2020-10-29  3884  		if (GEM_BFEXT(NO_PCS, dcfg) == 0)
e4e143e26ce8f5 drivers/net/ethernet/cadence/macb_main.c Parshuram Thombare  2020-10-29  3885  			bp->caps |= MACB_CAPS_PCS;
e4e143e26ce8f5 drivers/net/ethernet/cadence/macb_main.c Parshuram Thombare  2020-10-29  3886  		dcfg = gem_readl(bp, DCFG12);
e4e143e26ce8f5 drivers/net/ethernet/cadence/macb_main.c Parshuram Thombare  2020-10-29  3887  		if (GEM_BFEXT(HIGH_SPEED, dcfg) == 1)
e4e143e26ce8f5 drivers/net/ethernet/cadence/macb_main.c Parshuram Thombare  2020-10-29  3888  			bp->caps |= MACB_CAPS_HIGH_SPEED;
e175587f4d32de drivers/net/ethernet/cadence/macb.c      Nicolas Ferre       2014-07-24  3889  		dcfg = gem_readl(bp, DCFG2);
e175587f4d32de drivers/net/ethernet/cadence/macb.c      Nicolas Ferre       2014-07-24  3890  		if ((dcfg & (GEM_BIT(RX_PKT_BUFF) | GEM_BIT(TX_PKT_BUFF))) == 0)
e175587f4d32de drivers/net/ethernet/cadence/macb.c      Nicolas Ferre       2014-07-24  3891  			bp->caps |= MACB_CAPS_FIFO_MODE;
ab91f0a9b5f4b9 drivers/net/ethernet/cadence/macb_main.c Rafal Ozieblo       2017-06-29  3892  		if (gem_has_ptp(bp)) {
7b4296148066f1 drivers/net/ethernet/cadence/macb.c      Rafal Ozieblo       2017-06-29  3893  			if (!GEM_BFEXT(TSU, gem_readl(bp, DCFG5)))
7897b071ac3b45 drivers/net/ethernet/cadence/macb_main.c Antoine Tenart      2019-11-13  3894  				dev_err(&bp->pdev->dev,
7897b071ac3b45 drivers/net/ethernet/cadence/macb_main.c Antoine Tenart      2019-11-13  3895  					"GEM doesn't support hardware ptp.\n");
ab91f0a9b5f4b9 drivers/net/ethernet/cadence/macb_main.c Rafal Ozieblo       2017-06-29  3896  			else {
7b4296148066f1 drivers/net/ethernet/cadence/macb.c      Rafal Ozieblo       2017-06-29 @3897  				bp->hw_dma_cap |= HW_DMA_CAP_PTP;
ab91f0a9b5f4b9 drivers/net/ethernet/cadence/macb_main.c Rafal Ozieblo       2017-06-29 @3898  				bp->ptp_info = &gem_ptp_info;
7b4296148066f1 drivers/net/ethernet/cadence/macb.c      Rafal Ozieblo       2017-06-29  3899  			}
e175587f4d32de drivers/net/ethernet/cadence/macb.c      Nicolas Ferre       2014-07-24  3900  		}
ab91f0a9b5f4b9 drivers/net/ethernet/cadence/macb_main.c Rafal Ozieblo       2017-06-29  3901  	}
e175587f4d32de drivers/net/ethernet/cadence/macb.c      Nicolas Ferre       2014-07-24  3902  
a35919e174350d drivers/net/ethernet/cadence/macb.c      Andy Shevchenko     2015-07-24  3903  	dev_dbg(&bp->pdev->dev, "Cadence caps 0x%08x\n", bp->caps);
e175587f4d32de drivers/net/ethernet/cadence/macb.c      Nicolas Ferre       2014-07-24  3904  }
e175587f4d32de drivers/net/ethernet/cadence/macb.c      Nicolas Ferre       2014-07-24  3905

diff mbox series

Patch

diff --git a/drivers/net/ethernet/cadence/macb.h b/drivers/net/ethernet/cadence/macb.h
index c1fc91c97cee..b6c5ecbd572c 100644
--- a/drivers/net/ethernet/cadence/macb.h
+++ b/drivers/net/ethernet/cadence/macb.h
@@ -1363,7 +1363,7 @@  static inline bool macb_is_gem(struct macb *bp)
 
 static inline bool gem_has_ptp(struct macb *bp)
 {
-	return !!(bp->caps & MACB_CAPS_GEM_HAS_PTP);
+	return (IS_ENABLED(CONFIG_MACB_USE_HWSTAMP) && (!!(bp->caps & MACB_CAPS_GEM_HAS_PTP)));
 }
 
 /**
diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
index f77bd1223c8f..bcda6a08706f 100644
--- a/drivers/net/ethernet/cadence/macb_main.c
+++ b/drivers/net/ethernet/cadence/macb_main.c
@@ -3889,7 +3889,6 @@  static void macb_configure_caps(struct macb *bp,
 		dcfg = gem_readl(bp, DCFG2);
 		if ((dcfg & (GEM_BIT(RX_PKT_BUFF) | GEM_BIT(TX_PKT_BUFF))) == 0)
 			bp->caps |= MACB_CAPS_FIFO_MODE;
-#ifdef CONFIG_MACB_USE_HWSTAMP
 		if (gem_has_ptp(bp)) {
 			if (!GEM_BFEXT(TSU, gem_readl(bp, DCFG5)))
 				dev_err(&bp->pdev->dev,
@@ -3899,7 +3898,6 @@  static void macb_configure_caps(struct macb *bp,
 				bp->ptp_info = &gem_ptp_info;
 			}
 		}
-#endif
 	}
 
 	dev_dbg(&bp->pdev->dev, "Cadence caps 0x%08x\n", bp->caps);