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authorDavidlohr Bueso <dave@stgolabs.net>2022-04-04 04:12:16 +0200
committerDan Williams <dan.j.williams@intel.com>2022-04-13 01:07:02 +0200
commitc43e036d6f861f4c68b50eea49ab55b539eaab02 (patch)
treecf4bf5fb102a9302530a86938c21f30247445c40 /drivers/cxl/pci.c
parentcxl/mbox: Improve handling of mbox_cmd hw return codes (diff)
downloadlinux-c43e036d6f861f4c68b50eea49ab55b539eaab02.tar.xz
linux-c43e036d6f861f4c68b50eea49ab55b539eaab02.zip
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>
Diffstat (limited to 'drivers/cxl/pci.c')
-rw-r--r--drivers/cxl/pci.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/cxl/pci.c b/drivers/cxl/pci.c
index 88fcd6cc38a3..39694cc63381 100644
--- a/drivers/cxl/pci.c
+++ b/drivers/cxl/pci.c
@@ -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 */
}