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AKwUvBxnHc0dalJzo4X8oavuWbjOvi89ZKERzgHRwHRPBh9XNCHsZ6jYIAgkBQztXhxXxWdK5DY=@vger.kernel.org X-Gm-Message-State: AFuF++nSFk0LSiKdV1ThPJrB71oqn5g2wKgB/9cPvWPuZ87AK3teuiUM yYnBur7fbCif2F3dRbfcVascmlYpR+cwhr3+6/rmmRfSMz78OCOyPMubIHFSNRUmoDp2b2xQNqw H7dtljdqWGUMWTBXnDkFz3+B8Og== X-Received: from pghf4.prod.google.com ([2002:a63:e304:0:b0:cc4:56ea:7ae7]) (user=hramamurthy job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6a21:339a:b0:3d3:adad:f171 with SMTP id adf61e73a8af0-3dabb2435bbmr13084975637.19.1788981100707; Wed, 09 Sep 2026 12:11:40 -0700 (PDT) Date: Wed, 9 Sep 2026 19:11:27 +0000 In-Reply-To: <20260909191136.3811892-1-hramamurthy@google.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20260909191136.3811892-1-hramamurthy@google.com> X-Mailer: git-send-email 2.55.0.1003.g10538fe699-goog Message-ID: <20260909191136.3811892-5-hramamurthy@google.com> Subject: [PATCH net-next v6 04/12] gve: introduce gve_adminq_get_device_properties() From: Harshitha Ramamurthy To: netdev@vger.kernel.org Cc: joshwash@google.com, hramamurthy@google.com, andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, ast@kernel.org, daniel@iogearbox.net, hawk@kernel.org, john.fastabend@gmail.com, sdf@fomichev.me, jordanrhee@google.com, willemb@google.com, nktgrg@google.com, maolson@google.com, thostet@google.com, jacob.e.keller@intel.com, debarghyak@google.com, kees@kernel.org, bpf@vger.kernel.org, linux-kernel@vger.kernel.org, przemyslaw.kitszel@intel.com Content-Type: text/plain; charset="UTF-8" Introduce gve_adminq_get_device_properties() which executes the first two Adminq commands: VERIFY_DRIVER_COMPATIBILITY and DESCRIBE_DEVICE so that this can be called during initialization. Move these to Adminq specific files. This is just code movement, no functional change. Reviewed-by: Willem de Bruijn Reviewed-by: Jordan Rhee Reviewed-by: Przemek Kitszel Signed-off-by: Harshitha Ramamurthy --- v5: - Place the utsname.h and version.h header files only where needed - drop uneccessary __maybe_unused (Sashiko) v3: - move patch down so that the function is introduced just before usage - mark function as maybe_unused - update commit message drivers/net/ethernet/google/gve/gve_adminq.c | 68 ++++++++++++++++++-- drivers/net/ethernet/google/gve/gve_adminq.h | 5 +- drivers/net/ethernet/google/gve/gve_main.c | 47 +------------- 3 files changed, 65 insertions(+), 55 deletions(-) diff --git a/drivers/net/ethernet/google/gve/gve_adminq.c b/drivers/net/ethernet/google/gve/gve_adminq.c index 046155ae7d66..f420a8e1dd3d 100644 --- a/drivers/net/ethernet/google/gve/gve_adminq.c +++ b/drivers/net/ethernet/google/gve/gve_adminq.c @@ -6,6 +6,8 @@ #include #include +#include +#include #include "gve.h" #include "gve_adminq.h" #include "gve_register.h" @@ -1143,6 +1145,27 @@ int gve_adminq_describe_device(struct gve_priv *priv) return err; } +int gve_adminq_get_device_properties(struct gve_priv *priv) +{ + int err; + + err = gve_adminq_verify_driver_compatibility(priv); + if (err) { + dev_err(&priv->pdev->dev, + "Could not verify driver compatibility: err=%d\n", err); + return err; + } + + /* Get the initial information we need from the device */ + err = gve_adminq_describe_device(priv); + if (err) { + dev_err(&priv->pdev->dev, + "Could not get device information: err=%d\n", err); + return err; + } + return 0; +} + int gve_adminq_register_page_list(struct gve_priv *priv, struct gve_queue_page_list *qpl) { @@ -1205,20 +1228,53 @@ int gve_adminq_report_stats(struct gve_priv *priv, u64 stats_report_len, return gve_adminq_execute_cmd(priv, &cmd); } -int gve_adminq_verify_driver_compatibility(struct gve_priv *priv, - u64 driver_info_len, - dma_addr_t driver_info_addr) +int gve_adminq_verify_driver_compatibility(struct gve_priv *priv) { + struct gve_driver_info *driver_info; union gve_adminq_command cmd; + dma_addr_t driver_info_bus; + int err; + + driver_info = dma_alloc_coherent(&priv->pdev->dev, + sizeof(struct gve_driver_info), + &driver_info_bus, GFP_KERNEL); + if (!driver_info) + return -ENOMEM; + + *driver_info = (struct gve_driver_info) { + .os_type = 1, /* Linux */ + .os_version_major = cpu_to_be32(LINUX_VERSION_MAJOR), + .os_version_minor = cpu_to_be32(LINUX_VERSION_SUBLEVEL), + .os_version_sub = cpu_to_be32(LINUX_VERSION_PATCHLEVEL), + .driver_capability_flags = { + cpu_to_be64(GVE_DRIVER_CAPABILITY_FLAGS1), + cpu_to_be64(GVE_DRIVER_CAPABILITY_FLAGS2), + cpu_to_be64(GVE_DRIVER_CAPABILITY_FLAGS3), + cpu_to_be64(GVE_DRIVER_CAPABILITY_FLAGS4), + }, + }; + strscpy(driver_info->os_version_str1, utsname()->release, + sizeof(driver_info->os_version_str1)); + strscpy(driver_info->os_version_str2, utsname()->version, + sizeof(driver_info->os_version_str2)); memset(&cmd, 0, sizeof(cmd)); cmd.opcode = cpu_to_be32(GVE_ADMINQ_VERIFY_DRIVER_COMPATIBILITY); cmd.verify_driver_compatibility = (struct gve_adminq_verify_driver_compatibility) { - .driver_info_len = cpu_to_be64(driver_info_len), - .driver_info_addr = cpu_to_be64(driver_info_addr), + .driver_info_len = cpu_to_be64(sizeof(struct gve_driver_info)), + .driver_info_addr = cpu_to_be64(driver_info_bus), }; - return gve_adminq_execute_cmd(priv, &cmd); + err = gve_adminq_execute_cmd(priv, &cmd); + + /* It's ok if the device doesn't support this */ + if (err == -EOPNOTSUPP) + err = 0; + + dma_free_coherent(&priv->pdev->dev, + sizeof(struct gve_driver_info), + driver_info, driver_info_bus); + return err; } int gve_adminq_report_link_speed(struct gve_priv *priv) diff --git a/drivers/net/ethernet/google/gve/gve_adminq.h b/drivers/net/ethernet/google/gve/gve_adminq.h index ed3504853908..2ab68c822e22 100644 --- a/drivers/net/ethernet/google/gve/gve_adminq.h +++ b/drivers/net/ethernet/google/gve/gve_adminq.h @@ -640,9 +640,8 @@ int gve_adminq_register_page_list(struct gve_priv *priv, int gve_adminq_unregister_page_list(struct gve_priv *priv, u32 page_list_id); int gve_adminq_report_stats(struct gve_priv *priv, u64 stats_report_len, dma_addr_t stats_report_addr, u64 interval); -int gve_adminq_verify_driver_compatibility(struct gve_priv *priv, - u64 driver_info_len, - dma_addr_t driver_info_addr); +int gve_adminq_verify_driver_compatibility(struct gve_priv *priv); +int gve_adminq_get_device_properties(struct gve_priv *priv); int gve_adminq_report_link_speed(struct gve_priv *priv); int gve_adminq_add_flow_rule(struct gve_priv *priv, struct gve_adminq_flow_rule *rule, u32 loc); int gve_adminq_del_flow_rule(struct gve_priv *priv, u32 loc); diff --git a/drivers/net/ethernet/google/gve/gve_main.c b/drivers/net/ethernet/google/gve/gve_main.c index da53c1fb6afb..addfd8dc1a1a 100644 --- a/drivers/net/ethernet/google/gve/gve_main.c +++ b/drivers/net/ethernet/google/gve/gve_main.c @@ -17,8 +17,6 @@ #include #include #include -#include -#include #include #include #include @@ -41,49 +39,6 @@ char gve_driver_name[] = "gve"; const char gve_version_str[] = GVE_VERSION; static const char gve_version_prefix[] = GVE_VERSION_PREFIX; -static int gve_verify_driver_compatibility(struct gve_priv *priv) -{ - int err; - struct gve_driver_info *driver_info; - dma_addr_t driver_info_bus; - - driver_info = dma_alloc_coherent(&priv->pdev->dev, - sizeof(struct gve_driver_info), - &driver_info_bus, GFP_KERNEL); - if (!driver_info) - return -ENOMEM; - - *driver_info = (struct gve_driver_info) { - .os_type = 1, /* Linux */ - .os_version_major = cpu_to_be32(LINUX_VERSION_MAJOR), - .os_version_minor = cpu_to_be32(LINUX_VERSION_SUBLEVEL), - .os_version_sub = cpu_to_be32(LINUX_VERSION_PATCHLEVEL), - .driver_capability_flags = { - cpu_to_be64(GVE_DRIVER_CAPABILITY_FLAGS1), - cpu_to_be64(GVE_DRIVER_CAPABILITY_FLAGS2), - cpu_to_be64(GVE_DRIVER_CAPABILITY_FLAGS3), - cpu_to_be64(GVE_DRIVER_CAPABILITY_FLAGS4), - }, - }; - strscpy(driver_info->os_version_str1, utsname()->release, - sizeof(driver_info->os_version_str1)); - strscpy(driver_info->os_version_str2, utsname()->version, - sizeof(driver_info->os_version_str2)); - - err = gve_adminq_verify_driver_compatibility(priv, - sizeof(struct gve_driver_info), - driver_info_bus); - - /* It's ok if the device doesn't support this */ - if (err == -EOPNOTSUPP) - err = 0; - - dma_free_coherent(&priv->pdev->dev, - sizeof(struct gve_driver_info), - driver_info, driver_info_bus); - return err; -} - static netdev_features_t gve_features_check(struct sk_buff *skb, struct net_device *dev, netdev_features_t features) @@ -2480,7 +2435,7 @@ static int gve_init_priv(struct gve_priv *priv, bool skip_describe_device) return err; } - err = gve_verify_driver_compatibility(priv); + err = gve_adminq_verify_driver_compatibility(priv); if (err) { dev_err(&priv->pdev->dev, "Could not verify driver compatibility: err=%d\n", err); -- 2.55.0.979.g7e5102b832-goog