cxl: Add callback to parse the SSLBIS subtable from CDAT

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Provide a callback to parse the Switched Scoped Latency and Bandwidth
Information Structure (SSLBIS) in the CDAT structures. The SSLBIS
contains the bandwidth and latency information that's tied to the
CXL switch that the data table has been read from. The extracted
values are stored to the cxl_dport correlated by the port_id
depending on the SSLBIS entry.

Coherent Device Attribute Table 1.03 2.1 Switched Scoped Latency
and Bandwidth Information Structure (DSLBIS)

Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/170319620635.2212653.5194389158785365150.stgit@djiang5-mobl3
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

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Dave Jiang 2023-12-21 15:03:26 -07:00 • committed by Dan Williams

parent 63cef81b9d

commit 80aa780dda

3 changed files with 104 additions and 0 deletions

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98

drivers/cxl/core/cdat.c

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4

drivers/cxl/cxl.h

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2

drivers/cxl/port.c

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