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Thu, 25 Feb 2021 05:37:38 -0800 (PST) From: Kashyap Desai References: <20201222101156.98308-1-kashyap.desai@broadcom.com> <20201222101156.98308-22-kashyap.desai@broadcom.com> In-Reply-To: MIME-Version: 1.0 X-Mailer: Microsoft Outlook 15.0 Thread-Index: AQIVk2r6yGrO96+nYWGuC86HruD4YwHUXBlwALnh5fSp113VMA== Date: Thu, 25 Feb 2021 19:07:36 +0530 Message-ID: Subject: RE: [PATCH 21/24] mpi3mr: add support of PM suspend and resume To: Tomas Henzl , linux-scsi@vger.kernel.org Cc: jejb@linux.ibm.com, martin.petersen@oracle.com, Steve Hagan , Peter Rivera , mpi3mr-drvr-developers , Sathya Prakash Veerichetty Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256; boundary="0000000000004e063605bc29413b" Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org --0000000000004e063605bc29413b Content-Type: text/plain; charset="UTF-8" > -----Original Message----- > From: Tomas Henzl [mailto:thenzl@redhat.com] > Sent: Monday, February 22, 2021 9:03 PM > To: Kashyap Desai ; linux- > scsi@vger.kernel.org > Cc: jejb@linux.ibm.com; martin.petersen@oracle.com; > steve.hagan@broadcom.com; peter.rivera@broadcom.com; mpi3mr- > linuxdrv.pdl@broadcom.com; sathya.prakash@broadcom.com > Subject: Re: [PATCH 21/24] mpi3mr: add support of PM suspend and resume > > On 12/22/20 11:11 AM, Kashyap Desai wrote: > > Signed-off-by: Kashyap Desai > > Cc: sathya.prakash@broadcom.com > > --- > > drivers/scsi/mpi3mr/mpi3mr_os.c | 85 > > +++++++++++++++++++++++++++++++++ > > 1 file changed, 85 insertions(+) > > > > diff --git a/drivers/scsi/mpi3mr/mpi3mr_os.c > > b/drivers/scsi/mpi3mr/mpi3mr_os.c index 1708aca1a5cd..ac47eed74705 > > 100644 > > --- a/drivers/scsi/mpi3mr/mpi3mr_os.c > > +++ b/drivers/scsi/mpi3mr/mpi3mr_os.c > ... > > +/** > > + * mpi3mr_resume - PCI power management resume callback > > + * @pdev: PCI device instance > > + * > > + * Restore the power state to D0 and reinitialize the controller > > + * and resume I/O operations to the target devices > > + * > > + * Return: 0 on success, non-zero on failure */ static int > > +mpi3mr_resume(struct pci_dev *pdev) { > > + struct Scsi_Host *shost = pci_get_drvdata(pdev); > > + struct mpi3mr_ioc *mrioc; > > + pci_power_t device_state = pdev->current_state; > > + int r; > > + > > + mrioc = shost_priv(shost); > > + > > + ioc_info(mrioc, "pdev=0x%p, slot=%s, previous operating state > [D%d]\n", > > + pdev, pci_name(pdev), device_state); > > + pci_set_power_state(pdev, PCI_D0); > > + pci_enable_wake(pdev, PCI_D0, 0); > > + pci_restore_state(pdev); > > + mrioc->pdev = pdev; > > + mrioc->cpu_count = num_online_cpus(); > > + r = mpi3mr_setup_resources(mrioc); > > + if (r) { > > + ioc_info(mrioc, "%s: Setup resoruces failed[%d]\n", > > A typo here ^ Noted. I will fix it in V2. I will scan all the patch for such things one more time. Kashyap > > + __func__, r); > > + return r; > > + } --0000000000004e063605bc29413b Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIIQcAYJKoZIhvcNAQcCoIIQYTCCEF0CAQExDzANBglghkgBZQMEAgEFADALBgkqhkiG9w0BBwGg gg3HMIIFDTCCA/WgAwIBAgIQeEqpED+lv77edQixNJMdADANBgkqhkiG9w0BAQsFADBMMSAwHgYD VQQLExdHbG9iYWxTaWduIFJvb3QgQ0EgLSBSMzETMBEGA1UEChMKR2xvYmFsU2lnbjETMBEGA1UE AxMKR2xvYmFsU2lnbjAeFw0yMDA5MTYwMDAwMDBaFw0yODA5MTYwMDAwMDBaMFsxCzAJBgNVBAYT AkJFMRkwFwYDVQQKExBHbG9iYWxTaWduIG52LXNhMTEwLwYDVQQDEyhHbG9iYWxTaWduIEdDQyBS MyBQZXJzb25hbFNpZ24gMiBDQSAyMDIwMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA vbCmXCcsbZ/a0fRIQMBxp4gJnnyeneFYpEtNydrZZ+GeKSMdHiDgXD1UnRSIudKo+moQ6YlCOu4t rVWO/EiXfYnK7zeop26ry1RpKtogB7/O115zultAz64ydQYLe+a1e/czkALg3sgTcOOcFZTXk38e aqsXsipoX1vsNurqPtnC27TWsA7pk4uKXscFjkeUE8JZu9BDKaswZygxBOPBQBwrA5+20Wxlk6k1 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