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cxl/mbox: Use new return_code handling 

Use the global cxl_mbox_cmd_rc table to improve debug messaging
in __cxl_pci_mbox_send_cmd() and allow cxl_mbox_send_cmd()
to map to proper kernel style errno codes - this patch
continues to use -ENXIO only so no change in semantics.

Signed-off-by: Davidlohr Bueso <dave@stgolabs.net>
Reviewed by: Adam Manzanares <a.manzanares@samsung.com>
Link: https://lore.kernel.org/r/20220404021216.66841-5-dave@stgolabs.net
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Davidlohr Bueso 2022-04-03 19:12:16 -07:00 committed by Dan Williams
parent 92fcc1abab
commit c43e036d6f
2 changed files with 3 additions and 3 deletions
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3
drivers/cxl/core/mbox.c
View File

@ -180,9 +180,8 @@ int cxl_mbox_send_cmd(struct cxl_dev_state *cxlds, u16 opcode, void *in,
if (rc)
return rc;
/* TODO: Map return code to proper kernel style errno */
if (mbox_cmd.return_code != CXL_MBOX_CMD_RC_SUCCESS)
return -ENXIO;
return cxl_mbox_cmd_rc2errno(&mbox_cmd);
/*
* Variable sized commands can't be validated and so it's up to the

3
drivers/cxl/pci.c
View File

@ -178,7 +178,8 @@ static int __cxl_pci_mbox_send_cmd(struct cxl_dev_state *cxlds,
FIELD_GET(CXLDEV_MBOX_STATUS_RET_CODE_MASK, status_reg);
if (mbox_cmd->return_code != CXL_MBOX_CMD_RC_SUCCESS) {
dev_dbg(dev, "Mailbox operation had an error\n");
dev_dbg(dev, "Mailbox operation had an error: %s\n",
cxl_mbox_cmd_rc2str(mbox_cmd));
return 0; /* completed but caller must check return_code */
}