On 13/08/18 19:01, Christophe Lombard wrote:
From: Christophe Lombard <christophe_lomb...@fr.ibm.cm>

Your git committer email should probably match your sign-off email.


The AFU Information DVSEC capability is a means to extract common,
general information about all of the AFUs associated with a Function
independent of the specific functionality that each AFU provides.

This patch fixes the access to the AFU Descriptor Data indexed by the
AFU Info Index field.

Fixes: 5ef3166e8a32 ("ocxl: Driver code for 'generic' opencapi devices")

Signed-off-by: Christophe Lombard <clomb...@linux.vnet.ibm.com>

This looks like it should go to stable? I assume the reason we haven't noticed this previously is because we have not been testing with multi-AFU cards.

---
  drivers/misc/ocxl/config.c | 4 +++-
  1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/misc/ocxl/config.c b/drivers/misc/ocxl/config.c
index 2e30de9..de01623 100644
--- a/drivers/misc/ocxl/config.c
+++ b/drivers/misc/ocxl/config.c
@@ -280,7 +280,9 @@ int ocxl_config_check_afu_index(struct pci_dev *dev,
        u32 val;
        int rc, templ_major, templ_minor, len;
- pci_write_config_word(dev, fn->dvsec_afu_info_pos, afu_idx);
+       pci_write_config_word(dev,
+                             fn->dvsec_afu_info_pos + 
OCXL_DVSEC_AFU_INFO_AFU_IDX,
+                             afu_idx);

pci_write_config_byte() would be more appropriate here (see ocxl_config_read_afu() at line 454)

        rc = read_afu_info(dev, fn, OCXL_DVSEC_TEMPL_VERSION, &val);
        if (rc)
                return rc;


--
Andrew Donnellan              OzLabs, ADL Canberra
andrew.donnel...@au1.ibm.com  IBM Australia Limited

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