Messages in this thread | | | Date | Thu, 27 Oct 2022 11:49:29 -0700 | Subject | Re: [PATCH] wifi: ath10k: Add WLAN firmware image version info into smem | From | Jeff Johnson <> |
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On 10/26/2022 3:22 AM, Youghandhar Chintala wrote: > In a SoC based solution, it would be useful to know the versions of the > various binary firmware blobs the system is running on. On a QCOM based > SoC, this info can be obtained from socinfo debugfs infrastructure. For > this to work, respective subsystem drivers have to export the firmware > version information to an SMEM based version information table. > > Having firmware version information at one place will help quickly > figure out the firmware versions of various subsystems on the device > instead of going through builds/logs in an event of a system crash. > > Fill WLAN firmware version information in SMEM version table to be > printed as part of socinfo debugfs infrastructure on a Qualcomm based > SoC. > > This change is applicable only for WCN399X targets. > > Tested-on: WCN3990 hw1.0 SNOC WLAN.HL.3.2.2.c10-00754-QCAHLSWMTPL-1 > > Signed-off-by: Youghandhar Chintala <quic_youghand@quicinc.com> > --- > drivers/net/wireless/ath/ath10k/qmi.c | 28 +++++++++++++++++++++++++++ > 1 file changed, 28 insertions(+) > > diff --git a/drivers/net/wireless/ath/ath10k/qmi.c b/drivers/net/wireless/ath/ath10k/qmi.c > index 66cb7a1e628a..e88bcfd96859 100644 > --- a/drivers/net/wireless/ath/ath10k/qmi.c > +++ b/drivers/net/wireless/ath/ath10k/qmi.c > @@ -14,6 +14,7 @@ > #include <linux/net.h> > #include <linux/platform_device.h> > #include <linux/qcom_scm.h> > +#include <linux/soc/qcom/smem.h> > #include <linux/string.h> > #include <net/sock.h> > > @@ -22,6 +23,8 @@ > > #define ATH10K_QMI_CLIENT_ID 0x4b4e454c > #define ATH10K_QMI_TIMEOUT 30 > +#define ATH10K_SMEM_IMAGE_VERSION_TABLE 469 > +#define ATH10K_SMEM_IMAGE_TABLE_CNSS_INDEX 13 > > static int ath10k_qmi_map_msa_permission(struct ath10k_qmi *qmi, > struct ath10k_msa_mem_info *mem_info) > @@ -536,6 +539,29 @@ int ath10k_qmi_wlan_disable(struct ath10k *ar) > return ath10k_qmi_mode_send_sync_msg(ar, QMI_WLFW_OFF_V01); > } > > +static void ath10k_qmi_add_wlan_ver_smem(struct ath10k *ar, char *fw_build_id)
const char *fw_build_id?
> +{ > + u8 *smem_table_ptr; > + size_t smem_block_size; > + const u32 version_string_size = 128;
should you s/128/MAX_BUILD_ID_LEN/ since that is what is used to size qmi->fw_build_id?
or alternately have the caller pass fw_build_id length as a separate param?
> + const u32 smem_img_idx_wlan = ATH10K_SMEM_IMAGE_TABLE_CNSS_INDEX * 128; > + > + smem_table_ptr = qcom_smem_get(QCOM_SMEM_HOST_ANY, > + ATH10K_SMEM_IMAGE_VERSION_TABLE, > + &smem_block_size); > + if (IS_ERR(smem_table_ptr)) { > + ath10k_dbg(ar, ATH10K_DBG_QMI, "smem image version table not found"); > + return; > + } > + if (smem_img_idx_wlan + version_string_size > smem_block_size) { > + ath10k_dbg(ar, ATH10K_DBG_QMI, "smem block size too small: %i", > + smem_block_size); > + return; > + } > + memcpy(smem_table_ptr + smem_img_idx_wlan, fw_build_id, > + version_string_size); > +} > + > static int ath10k_qmi_cap_send_sync_msg(struct ath10k_qmi *qmi) > { > struct wlfw_cap_resp_msg_v01 *resp; > @@ -606,6 +632,8 @@ static int ath10k_qmi_cap_send_sync_msg(struct ath10k_qmi *qmi) > qmi->fw_version, qmi->fw_build_timestamp, qmi->fw_build_id); > } > > + ath10k_qmi_add_wlan_ver_smem(ar, qmi->fw_build_id); > + > kfree(resp); > return 0; >
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