diff for duplicates of <1505529516.3863.3.camel@wdc.com> diff --git a/a/1.txt b/N1/1.txt index ec2ca90..f35e327 100644 --- a/a/1.txt +++ b/N1/1.txt @@ -1,10 +1,11 @@ -T24gU2F0LCAyMDE3LTA5LTE2IGF0IDA3OjM1ICswOTAwLCBEYW1pZW4gTGUgTW9hbCB3cm90ZToN -Cj4gcncxNiBpcyBtYW5kYXRvcnkgZm9yIFpCQyBkcml2ZXMuIFNvIGl0IGhhcyB0byBiZSBzZXQg -dG8gdHJ1ZS4gSWYgdGhlDQo+IEhCQSBkb2VzIG5vdCBzdXBwb3J0IHJ3MTYgKHdoeSB3b3VsZCB0 -aGF0IGhhcHBlbiA/KSwgdGhlbiB0aGUgZGlzaw0KPiBzaG91bGQgbm90IGJlIHVzZWQuDQoNCkl0 -J3MgZ29vZCB0aGF0IGFsbCBIQkFzIHN1cHBvcnQgcncxNi4gQnV0IGl0J3Mgbm9udHJpdmlhbCB0 -byBhbmFseXplIHdoZXRoZXINCm9yIG5vdCB1c2VfMVswNl1fZm9yX3J3IGFyZSBzZXQgYmVmb3Jl -IHRoZXNlIGFyZSB1c2VkIHNvIG1heWJlIHdlIHNob3VsZCB0aGluaw0KYWJvdXQgaG93IHdlIGNh -biByZXN0cnVjdHVyZSB0aGUgU0NTSSBjb2RlIHN1Y2ggdGhhdCBpdCBiZWNvbWVzIGVhc2llciB0 -byB2ZXJpZnkNCnRoYXQgdXNlXzFbMDZdX2Zvcl9ydyBhcmUgc2V0IGJlZm9yZSB0aGVzZSBhcmUg -dXNlZC4NCg0KQmFydC4= +On Sat, 2017-09-16 at 07:35 +0900, Damien Le Moal wrote: +> rw16 is mandatory for ZBC drives. So it has to be set to true. If the +> HBA does not support rw16 (why would that happen ?), then the disk +> should not be used. + +It's good that all HBAs support rw16. But it's nontrivial to analyze whether +or not use_1[06]_for_rw are set before these are used so maybe we should think +about how we can restructure the SCSI code such that it becomes easier to verify +that use_1[06]_for_rw are set before these are used. + +Bart. diff --git a/a/content_digest b/N1/content_digest index 1321ee1..f31d8c0 100644 --- a/a/content_digest +++ b/N1/content_digest @@ -15,15 +15,16 @@ " axboe@kernel.dk <axboe@kernel.dk>\0" "\00:1\0" "b\0" - "T24gU2F0LCAyMDE3LTA5LTE2IGF0IDA3OjM1ICswOTAwLCBEYW1pZW4gTGUgTW9hbCB3cm90ZToN\n" - "Cj4gcncxNiBpcyBtYW5kYXRvcnkgZm9yIFpCQyBkcml2ZXMuIFNvIGl0IGhhcyB0byBiZSBzZXQg\n" - "dG8gdHJ1ZS4gSWYgdGhlDQo+IEhCQSBkb2VzIG5vdCBzdXBwb3J0IHJ3MTYgKHdoeSB3b3VsZCB0\n" - "aGF0IGhhcHBlbiA/KSwgdGhlbiB0aGUgZGlzaw0KPiBzaG91bGQgbm90IGJlIHVzZWQuDQoNCkl0\n" - "J3MgZ29vZCB0aGF0IGFsbCBIQkFzIHN1cHBvcnQgcncxNi4gQnV0IGl0J3Mgbm9udHJpdmlhbCB0\n" - "byBhbmFseXplIHdoZXRoZXINCm9yIG5vdCB1c2VfMVswNl1fZm9yX3J3IGFyZSBzZXQgYmVmb3Jl\n" - "IHRoZXNlIGFyZSB1c2VkIHNvIG1heWJlIHdlIHNob3VsZCB0aGluaw0KYWJvdXQgaG93IHdlIGNh\n" - "biByZXN0cnVjdHVyZSB0aGUgU0NTSSBjb2RlIHN1Y2ggdGhhdCBpdCBiZWNvbWVzIGVhc2llciB0\n" - "byB2ZXJpZnkNCnRoYXQgdXNlXzFbMDZdX2Zvcl9ydyBhcmUgc2V0IGJlZm9yZSB0aGVzZSBhcmUg\n" - dXNlZC4NCg0KQmFydC4= + "On Sat, 2017-09-16 at 07:35 +0900, Damien Le Moal wrote:\n" + "> rw16 is mandatory for ZBC drives. So it has to be set to true. If the\n" + "> HBA does not support rw16 (why would that happen ?), then the disk\n" + "> should not be used.\n" + "\n" + "It's good that all HBAs support rw16. But it's nontrivial to analyze whether\n" + "or not use_1[06]_for_rw are set before these are used so maybe we should think\n" + "about how we can restructure the SCSI code such that it becomes easier to verify\n" + "that use_1[06]_for_rw are set before these are used.\n" + "\n" + Bart. -16e995a1dd79f13bb061f3f26ecb5d179f8cb70807b3f21ed1d2831183b17f3c +c786e39b5848a03508b5dcc2ac3de976a03b179b1fcc3912b93ce1727b172af4
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