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prayas.patel@broadcom.com, Sumit Saxena Subject: [PATCH 5/7] mpi3mr: expose adapter state to sysfs Date: Tue, 22 Mar 2022 08:21:05 -0400 Message-Id: <20220322122107.8482-6-sumit.saxena@broadcom.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20220322122107.8482-1-sumit.saxena@broadcom.com> References: <20220322122107.8482-1-sumit.saxena@broadcom.com> MIME-Version: 1.0 Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256; boundary="0000000000002b2b4805dacda9f9" Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org --0000000000002b2b4805dacda9f9 Content-Transfer-Encoding: 8bit Signed-off-by: Sumit Saxena --- drivers/scsi/mpi3mr/mpi3mr.h | 2 +- drivers/scsi/mpi3mr/mpi3mr_app.c | 46 ++++++++++++++++++++++++++++++++ drivers/scsi/mpi3mr/mpi3mr_os.c | 1 + 3 files changed, 48 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/mpi3mr/mpi3mr.h b/drivers/scsi/mpi3mr/mpi3mr.h index 10c074c1eea6..5a1b2d9b64da 100644 --- a/drivers/scsi/mpi3mr/mpi3mr.h +++ b/drivers/scsi/mpi3mr/mpi3mr.h @@ -1022,5 +1022,5 @@ int mpi3mr_pel_get_seqnum_post(struct mpi3mr_ioc *mrioc, struct mpi3mr_drv_cmd *drv_cmd); void mpi3mr_app_save_logdata(struct mpi3mr_ioc *mrioc, char *event_data, u16 event_data_size); - +extern const struct attribute_group *mpi3mr_host_groups[]; #endif /*MPI3MR_H_INCLUDED*/ diff --git a/drivers/scsi/mpi3mr/mpi3mr_app.c b/drivers/scsi/mpi3mr/mpi3mr_app.c index aa95bff5412a..da3c7835ada4 100644 --- a/drivers/scsi/mpi3mr/mpi3mr_app.c +++ b/drivers/scsi/mpi3mr/mpi3mr_app.c @@ -1220,3 +1220,49 @@ void mpi3mr_bsg_init(struct mpi3mr_ioc *mrioc) err_device_add: kfree(mrioc->bsg_dev); } + +/** + * adapter_state_show - SysFS callback for adapter state show + * @dev: class device + * @attr: Device attributes + * @buf: Buffer to copy + * + * Return: snprintf() return after copying adapter state + */ +static ssize_t +adp_state_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct mpi3mr_ioc *mrioc = shost_priv(shost); + enum mpi3mr_iocstate ioc_state; + uint8_t adp_state; + + ioc_state = mpi3mr_get_iocstate(mrioc); + if (ioc_state == MRIOC_STATE_UNRECOVERABLE) + adp_state = MPI3MR_BSG_ADPSTATE_UNRECOVERABLE; + else if ((mrioc->reset_in_progress) || (mrioc->stop_bsgs)) + adp_state = MPI3MR_BSG_ADPSTATE_IN_RESET; + else if (ioc_state == MRIOC_STATE_FAULT) + adp_state = MPI3MR_BSG_ADPSTATE_FAULT; + else + adp_state = MPI3MR_BSG_ADPSTATE_OPERATIONAL; + + return snprintf(buf, PAGE_SIZE, "%u\n", adp_state); +} + +static DEVICE_ATTR_RO(adp_state); + +static struct attribute *mpi3mr_host_attrs[] = { + &dev_attr_adp_state.attr, + NULL, +}; + +static const struct attribute_group mpi3mr_host_attr_group = { + .attrs = mpi3mr_host_attrs +}; + +const struct attribute_group *mpi3mr_host_groups[] = { + &mpi3mr_host_attr_group, + NULL, +}; diff --git a/drivers/scsi/mpi3mr/mpi3mr_os.c b/drivers/scsi/mpi3mr/mpi3mr_os.c index 19298136edb6..89a4918c4a9e 100644 --- a/drivers/scsi/mpi3mr/mpi3mr_os.c +++ b/drivers/scsi/mpi3mr/mpi3mr_os.c @@ -4134,6 +4134,7 @@ static struct scsi_host_template mpi3mr_driver_template = { .max_segment_size = 0xffffffff, .track_queue_depth = 1, .cmd_size = sizeof(struct scmd_priv), + .shost_groups = mpi3mr_host_groups, }; /** -- 2.27.0 --0000000000002b2b4805dacda9f9 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIIQbQYJKoZIhvcNAQcCoIIQXjCCEFoCAQExDzANBglghkgBZQMEAgEFADALBgkqhkiG9w0BBwGg gg3EMIIFDTCCA/WgAwIBAgIQeEqpED+lv77edQixNJMdADANBgkqhkiG9w0BAQsFADBMMSAwHgYD VQQLExdHbG9iYWxTaWduIFJvb3QgQ0EgLSBSMzETMBEGA1UEChMKR2xvYmFsU2lnbjETMBEGA1UE AxMKR2xvYmFsU2lnbjAeFw0yMDA5MTYwMDAwMDBaFw0yODA5MTYwMDAwMDBaMFsxCzAJBgNVBAYT AkJFMRkwFwYDVQQKExBHbG9iYWxTaWduIG52LXNhMTEwLwYDVQQDEyhHbG9iYWxTaWduIEdDQyBS 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