cxgbe(4): Catch up with the different layout of WHOAMI in T6.

Note that the code moved below t4_prep_adapter() as part of this change
because now it needs a working chip_id().

1 files changed, 10 insertions, 9 deletions

diff --git a/sys/dev/cxgbe/t4_main.c b/sys/dev/cxgbe/t4_main.c
index 76fa716c192f..0d80b2b7a836 100644
--- a/sys/dev/cxgbe/t4_main.c
+++ b/sys/dev/cxgbe/t4_main.c
@@ -812,15 +812,6 @@ t4_attach(device_t dev)
 	if (rc != 0)
 		goto done; /* error message displayed already */
 
-	/*
-	 * This is the real PF# to which we're attaching.  Works from within PCI
-	 * passthrough environments too, where pci_get_function() could return a
-	 * different PF# depending on the passthrough configuration.  We need to
-	 * use the real PF# in all our communication with the firmware.
-	 */
-	sc->pf = G_SOURCEPF(t4_read_reg(sc, A_PL_WHOAMI));
-	sc->mbox = sc->pf;
-
 	memset(sc->chan_map, 0xff, sizeof(sc->chan_map));
 
 	/* Prepare the adapter for operation. */
@@ -832,6 +823,16 @@ t4_attach(device_t dev)
 		goto done;
 	}
 
+	/*
+	 * This is the real PF# to which we're attaching.  Works from within PCI
+	 * passthrough environments too, where pci_get_function() could return a
+	 * different PF# depending on the passthrough configuration.  We need to
+	 * use the real PF# in all our communication with the firmware.
+	 */
+	j = t4_read_reg(sc, A_PL_WHOAMI);
+	sc->pf = chip_id(sc) <= CHELSIO_T5 ? G_SOURCEPF(j) : G_T6_SOURCEPF(j);
+	sc->mbox = sc->pf;
+
 	t4_init_devnames(sc);
 	if (sc->names == NULL) {
 		rc = ENOTSUP;