Date: Fri, 27 Nov 2015 11:57:26 +0000 From: "jpa-semihalf.com (Jakub Palider)" <phabric-noreply@FreeBSD.org> To: freebsd-arm@freebsd.org Subject: [Differential] [Request, 35 lines] D4301: Disable MSI-x for AHCI on Alpine plaftrorm Message-ID: <differential-rev-PHID-DREV-boik72iv2f64smtes2dn-req@FreeBSD.org>
next in thread | raw e-mail | index | archive | help
--b1_ceffba8be4d83b3b2c582c2b899af6b6 Content-Type: text/plain; charset = "utf-8" Content-Transfer-Encoding: 8bit jpa-semihalf.com created this revision. jpa-semihalf.com added reviewers: imp, andrew, zbb. jpa-semihalf.com added a subscriber: freebsd-arm-list. REVISION SUMMARY Changes introduced to AHCI code adding support for MSI-x caused interrupt storm on Alpine boards. This is unintended behaviour so added quirk to omit this functionality. This is a small and non-intrusive patch so I hope no problems will arise, anyway, have a look at this, please. REVISION DETAIL https://reviews.freebsd.org/D4301 AFFECTED FILES sys/dev/ahci/ahci.h sys/dev/ahci/ahci_pci.c CHANGE DETAILS diff --git a/sys/dev/ahci/ahci_pci.c b/sys/dev/ahci/ahci_pci.c --- a/sys/dev/ahci/ahci_pci.c +++ b/sys/dev/ahci/ahci_pci.c @@ -293,7 +293,7 @@ {0x11851039, 0x00, "SiS 968", 0}, {0x01861039, 0x00, "SiS 968", 0}, {0xa01c177d, 0x00, "ThunderX", AHCI_Q_ABAR0|AHCI_Q_1MSI}, - {0x00311c36, 0x00, "Annapurna", AHCI_Q_FORCE_PI|AHCI_Q_RESTORE_CAP}, + {0x00311c36, 0x00, "Annapurna", AHCI_Q_FORCE_PI|AHCI_Q_RESTORE_CAP|AHCI_Q_NOMSIX}, {0x00000000, 0x00, NULL, 0} }; @@ -437,6 +437,9 @@ &ctlr->r_rid, RF_ACTIVE))) return ENXIO; + if (ctlr->quirks & AHCI_Q_NOMSIX) + msix_count = 0; + /* Read MSI-x BAR IDs if supported */ if (msix_count > 0) { error = ahci_pci_read_msix_bars(dev, &table_bar, &pba_bar); diff --git a/sys/dev/ahci/ahci.h b/sys/dev/ahci/ahci.h --- a/sys/dev/ahci/ahci.h +++ b/sys/dev/ahci/ahci.h @@ -576,13 +576,14 @@ #define AHCI_Q_NOCOUNT 0x00000400 #define AHCI_Q_ALTSIG 0x00000800 #define AHCI_Q_NOMSI 0x00001000 -#define AHCI_Q_ATI_PMP_BUG 0x00002000 -#define AHCI_Q_MAXIO_64K 0x00004000 -#define AHCI_Q_SATA1_UNIT0 0x00008000 /* need better method for this */ -#define AHCI_Q_ABAR0 0x00010000 -#define AHCI_Q_1MSI 0x00020000 -#define AHCI_Q_FORCE_PI 0x00040000 -#define AHCI_Q_RESTORE_CAP 0x00080000 +#define AHCI_Q_NOMSIX 0x00002000 +#define AHCI_Q_ATI_PMP_BUG 0x00004000 +#define AHCI_Q_MAXIO_64K 0x00008000 +#define AHCI_Q_SATA1_UNIT0 0x00010000 /* need better method for this */ +#define AHCI_Q_ABAR0 0x00020000 +#define AHCI_Q_1MSI 0x00040000 +#define AHCI_Q_FORCE_PI 0x00080000 +#define AHCI_Q_RESTORE_CAP 0x00100000 #define AHCI_Q_BIT_STRING \ "\020" \ @@ -599,13 +600,14 @@ "\013NOCOUNT" \ "\014ALTSIG" \ "\015NOMSI" \ - "\016ATI_PMP_BUG" \ - "\017MAXIO_64K" \ - "\020SATA1_UNIT0" \ - "\021ABAR0" \ - "\0221MSI" \ - "\023FORCE_PI" \ - "\024RESTORE_CAP" + "\016NOMSIX" \ + "\017ATI_PMP_BUG" \ + "\018MAXIO_64K" \ + "\019SATA1_UNIT0" \ + "\020ABAR0" \ + "\0211MSI" \ + "\022FORCE_PI" \ + "\023RESTORE_CAP" int ahci_attach(device_t dev); int ahci_detach(device_t dev); EMAIL PREFERENCES https://reviews.freebsd.org/settings/panel/emailpreferences/ To: jpa-semihalf.com, imp, andrew, zbb Cc: freebsd-arm-list --b1_ceffba8be4d83b3b2c582c2b899af6b6 Content-Type: text/x-patch; charset=utf-8; name="D4301.10542.patch" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="D4301.10542.patch" ZGlmZiAtLWdpdCBhL3N5cy9kZXYvYWhjaS9haGNpX3BjaS5jIGIvc3lzL2Rldi9haGNpL2FoY2lf cGNpLmMKLS0tIGEvc3lzL2Rldi9haGNpL2FoY2lfcGNpLmMKKysrIGIvc3lzL2Rldi9haGNpL2Fo Y2lfcGNpLmMKQEAgLTI5Myw3ICsyOTMsNyBAQAogCXsweDExODUxMDM5LCAweDAwLCAiU2lTIDk2 OCIsCQkwfSwKIAl7MHgwMTg2MTAzOSwgMHgwMCwgIlNpUyA5NjgiLAkJMH0sCiAJezB4YTAxYzE3 N2QsIDB4MDAsICJUaHVuZGVyWCIsCQlBSENJX1FfQUJBUjB8QUhDSV9RXzFNU0l9LAotCXsweDAw MzExYzM2LCAweDAwLCAiQW5uYXB1cm5hIiwJCUFIQ0lfUV9GT1JDRV9QSXxBSENJX1FfUkVTVE9S RV9DQVB9LAorCXsweDAwMzExYzM2LCAweDAwLCAiQW5uYXB1cm5hIiwJCUFIQ0lfUV9GT1JDRV9Q SXxBSENJX1FfUkVTVE9SRV9DQVB8QUhDSV9RX05PTVNJWH0sCiAJezB4MDAwMDAwMDAsIDB4MDAs IE5VTEwsCQkwfQogfTsKIApAQCAtNDM3LDYgKzQzNyw5IEBACiAJICAgICZjdGxyLT5yX3JpZCwg UkZfQUNUSVZFKSkpCiAJCXJldHVybiBFTlhJTzsKIAorCWlmIChjdGxyLT5xdWlya3MgJiBBSENJ X1FfTk9NU0lYKQorCQltc2l4X2NvdW50ID0gMDsKKwogCS8qIFJlYWQgTVNJLXggQkFSIElEcyBp ZiBzdXBwb3J0ZWQgKi8KIAlpZiAobXNpeF9jb3VudCA+IDApIHsKIAkJZXJyb3IgPSBhaGNpX3Bj aV9yZWFkX21zaXhfYmFycyhkZXYsICZ0YWJsZV9iYXIsICZwYmFfYmFyKTsKZGlmZiAtLWdpdCBh L3N5cy9kZXYvYWhjaS9haGNpLmggYi9zeXMvZGV2L2FoY2kvYWhjaS5oCi0tLSBhL3N5cy9kZXYv YWhjaS9haGNpLmgKKysrIGIvc3lzL2Rldi9haGNpL2FoY2kuaApAQCAtNTc2LDEzICs1NzYsMTQg QEAKICNkZWZpbmUgQUhDSV9RX05PQ09VTlQJCTB4MDAwMDA0MDAKICNkZWZpbmUgQUhDSV9RX0FM VFNJRwkJMHgwMDAwMDgwMAogI2RlZmluZSBBSENJX1FfTk9NU0kJCTB4MDAwMDEwMDAKLSNkZWZp bmUgQUhDSV9RX0FUSV9QTVBfQlVHCTB4MDAwMDIwMDAKLSNkZWZpbmUgQUhDSV9RX01BWElPXzY0 SwkweDAwMDA0MDAwCi0jZGVmaW5lIEFIQ0lfUV9TQVRBMV9VTklUMAkweDAwMDA4MDAwCS8qIG5l ZWQgYmV0dGVyIG1ldGhvZCBmb3IgdGhpcyAqLwotI2RlZmluZSBBSENJX1FfQUJBUjAJCTB4MDAw MTAwMDAKLSNkZWZpbmUgQUhDSV9RXzFNU0kJCTB4MDAwMjAwMDAKLSNkZWZpbmUgQUhDSV9RX0ZP UkNFX1BJCQkweDAwMDQwMDAwCi0jZGVmaW5lIEFIQ0lfUV9SRVNUT1JFX0NBUAkweDAwMDgwMDAw CisjZGVmaW5lIEFIQ0lfUV9OT01TSVgJCTB4MDAwMDIwMDAKKyNkZWZpbmUgQUhDSV9RX0FUSV9Q TVBfQlVHCTB4MDAwMDQwMDAKKyNkZWZpbmUgQUhDSV9RX01BWElPXzY0SwkweDAwMDA4MDAwCisj ZGVmaW5lIEFIQ0lfUV9TQVRBMV9VTklUMAkweDAwMDEwMDAwCS8qIG5lZWQgYmV0dGVyIG1ldGhv ZCBmb3IgdGhpcyAqLworI2RlZmluZSBBSENJX1FfQUJBUjAJCTB4MDAwMjAwMDAKKyNkZWZpbmUg QUhDSV9RXzFNU0kJCTB4MDAwNDAwMDAKKyNkZWZpbmUgQUhDSV9RX0ZPUkNFX1BJCQkweDAwMDgw MDAwCisjZGVmaW5lIEFIQ0lfUV9SRVNUT1JFX0NBUAkweDAwMTAwMDAwCiAKICNkZWZpbmUgQUhD SV9RX0JJVF9TVFJJTkcJXAogCSJcMDIwIgkJCVwKQEAgLTU5OSwxMyArNjAwLDE0IEBACiAJIlww MTNOT0NPVU5UIgkJXAogCSJcMDE0QUxUU0lHIgkJXAogCSJcMDE1Tk9NU0kiCQlcCi0JIlwwMTZB VElfUE1QX0JVRyIJXAotCSJcMDE3TUFYSU9fNjRLIgkJXAotCSJcMDIwU0FUQTFfVU5JVDAiCVwK LQkiXDAyMUFCQVIwIgkJXAotCSJcMDIyMU1TSSIgICAgICAgICAgICAgIFwKLQkiXDAyM0ZPUkNF X1BJIiAgICAgICAgICBcCi0JIlwwMjRSRVNUT1JFX0NBUCIKKwkiXDAxNk5PTVNJWCIJCVwKKwki XDAxN0FUSV9QTVBfQlVHIglcCisJIlwwMThNQVhJT182NEsiCQlcCisJIlwwMTlTQVRBMV9VTklU MCIJXAorCSJcMDIwQUJBUjAiCQlcCisJIlwwMjExTVNJIiAgICAgICAgICAgICAgXAorCSJcMDIy Rk9SQ0VfUEkiICAgICAgICAgIFwKKwkiXDAyM1JFU1RPUkVfQ0FQIgogCiBpbnQgYWhjaV9hdHRh Y2goZGV2aWNlX3QgZGV2KTsKIGludCBhaGNpX2RldGFjaChkZXZpY2VfdCBkZXYpOwoK --b1_ceffba8be4d83b3b2c582c2b899af6b6--
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?differential-rev-PHID-DREV-boik72iv2f64smtes2dn-req>