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Sat, 10 Oct 2020 03:24:23 -0700 (PDT) From: Coiby Xu X-Google-Original-From: Coiby Xu Date: Sat, 10 Oct 2020 18:24:16 +0800 To: Benjamin Poirier Cc: devel@driverdev.osuosl.org, Shung-Hsi Yu , Manish Chopra , "supporter:QLOGIC QLGE 10Gb ETHERNET DRIVER" , Greg Kroah-Hartman , open list , "open list:QLOGIC QLGE 10Gb ETHERNET DRIVER" Subject: Re: [PATCH v1 1/6] staging: qlge: Initialize devlink health dump framework for the dlge driver Message-ID: <20201010102416.hvbgx3mgyadmu6ui@Rk> References: <20201008115808.91850-1-coiby.xu@gmail.com> <20201008115808.91850-2-coiby.xu@gmail.com> <20201010073514.GA14495@f3> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline In-Reply-To: <20201010073514.GA14495@f3> Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Sat, Oct 10, 2020 at 04:35:14PM +0900, Benjamin Poirier wrote: >On 2020-10-08 19:58 +0800, Coiby Xu wrote: >> Initialize devlink health dump framework for the dlge driver so the >> coredump could be done via devlink. >> >> Signed-off-by: Coiby Xu >> --- >> drivers/staging/qlge/Kconfig | 1 + >> drivers/staging/qlge/Makefile | 2 +- >> drivers/staging/qlge/qlge.h | 9 +++++++ >> drivers/staging/qlge/qlge_devlink.c | 38 +++++++++++++++++++++++++++++ >> drivers/staging/qlge/qlge_devlink.h | 8 ++++++ >> drivers/staging/qlge/qlge_main.c | 28 +++++++++++++++++++++ >> 6 files changed, 85 insertions(+), 1 deletion(-) >> create mode 100644 drivers/staging/qlge/qlge_devlink.c >> create mode 100644 drivers/staging/qlge/qlge_devlink.h >> >> diff --git a/drivers/staging/qlge/Kconfig b/drivers/staging/qlge/Kconfig >> index a3cb25a3ab80..6d831ed67965 100644 >> --- a/drivers/staging/qlge/Kconfig >> +++ b/drivers/staging/qlge/Kconfig >> @@ -3,6 +3,7 @@ >> config QLGE >> tristate "QLogic QLGE 10Gb Ethernet Driver Support" >> depends on ETHERNET && PCI >> + select NET_DEVLINK >> help >> This driver supports QLogic ISP8XXX 10Gb Ethernet cards. >> >> diff --git a/drivers/staging/qlge/Makefile b/drivers/staging/qlge/Makefile >> index 1dc2568e820c..07c1898a512e 100644 >> --- a/drivers/staging/qlge/Makefile >> +++ b/drivers/staging/qlge/Makefile >> @@ -5,4 +5,4 @@ >> >> obj-$(CONFIG_QLGE) += qlge.o >> >> -qlge-objs := qlge_main.o qlge_dbg.o qlge_mpi.o qlge_ethtool.o >> +qlge-objs := qlge_main.o qlge_dbg.o qlge_mpi.o qlge_ethtool.o qlge_devlink.o >> diff --git a/drivers/staging/qlge/qlge.h b/drivers/staging/qlge/qlge.h >> index b295990e361b..290e754450c5 100644 >> --- a/drivers/staging/qlge/qlge.h >> +++ b/drivers/staging/qlge/qlge.h >> @@ -2060,6 +2060,14 @@ struct nic_operations { >> int (*port_initialize)(struct ql_adapter *qdev); >> }; >> >> + >> + >> +struct qlge_devlink { >> + struct ql_adapter *qdev; >> + struct net_device *ndev; > >This member should be removed, it is unused throughout the rest of the >series. Indeed, it's simple to use qdev->ndev and that's what >qlge_reporter_coredump() does. It reminds me that I forgot to reply to one of your comments in RFC and sorry for that, >> + >> + >> +struct qlge_devlink { >> + struct ql_adapter *qdev; >> + struct net_device *ndev; > >I don't have experience implementing devlink callbacks but looking at >some other devlink users (mlx4, ionic, ice), all of them use devlink >priv space for their main private structure. That would be struct >ql_adapter in this case. Is there a good reason to stray from that >pattern? struct ql_adapter which is created via alloc_etherdev_mq is the private space of struct net_device so we can't use ql_adapter as the the devlink private space simultaneously. Thus struct qlge_devlink is required. -- Best regards, Coiby