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hw/nvme: add support for zoned random write area

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Add support for TP 4076 ("Zoned Random Write Area"), v2021.08.23
("Ratified").

This adds three new namespace parameters: "zoned.numzrwa" (number of
zrwa resources, i.e. number of zones that can have a zrwa),
"zoned.zrwas" (zrwa size in LBAs), "zoned.zrwafg" (granularity in LBAs
for flushes).

Reviewed-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
This commit is contained in:
Klaus Jensen 2021-03-04 08:40:11 +01:00
parent 25872031e1
commit e321b4cdc2
5 changed files with 237 additions and 20 deletions
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hw/nvme/trace-events
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@ -103,6 +103,7 @@ pci_nvme_set_descriptor_extension(uint64_t slba, uint32_t zone_idx) "set zone de
pci_nvme_zd_extension_set(uint32_t zone_idx) "set descriptor extension for zone_idx=%"PRIu32""
pci_nvme_clear_ns_close(uint32_t state, uint64_t slba) "zone state=%"PRIu32", slba=%"PRIu64" transitioned to Closed state"
pci_nvme_clear_ns_reset(uint32_t state, uint64_t slba) "zone state=%"PRIu32", slba=%"PRIu64" transitioned to Empty state"
pci_nvme_zoned_zrwa_implicit_flush(uint64_t zslba, uint32_t nlb) "zslba 0x%"PRIx64" nlb %"PRIu32""
# error conditions
pci_nvme_err_mdts(size_t len) "len %zu"