git: 169e94c41e23 - main - cxgbe(4): Add support for PPOD_EDRAM feature.

[Navdeep Parhar]

The branch main has been updated by np:

URL: 
https://cgit.FreeBSD.org/src/commit/?id=169e94c41e235191014503de06915b0c1b60db91

commit 169e94c41e235191014503de06915b0c1b60db91
Author:     Navdeep Parhar <n...@freebsd.org>
AuthorDate: 2022-04-14 22:43:32 +0000
Commit:     Navdeep Parhar <n...@freebsd.org>
CommitDate: 2022-04-14 22:43:32 +0000

    cxgbe(4): Add support for PPOD_EDRAM feature.
    
    The driver queries the firmware to find out if it supports this feature
    and enables it if it does. The firmware moves the iSCSI page pod region
    to a lower address so that some of it is located in the faster on-chip
    memory instead of external DDR.
    
    Reviewed by:    jhb@
    MFC after:      3 weeks
    Sponsored by:   Chelsio Communications
    Differential Revision:  https://reviews.freebsd.org/D34895
---
 sys/dev/cxgbe/t4_main.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/sys/dev/cxgbe/t4_main.c b/sys/dev/cxgbe/t4_main.c
index b4069119c167..fa9576308ee5 100644
--- a/sys/dev/cxgbe/t4_main.c
+++ b/sys/dev/cxgbe/t4_main.c
@@ -5097,6 +5097,17 @@ set_params__pre_init(struct adapter *sc)
                            "failed to enable high priority filters :%d.\n",
                            rc);
                }
+
+               param = FW_PARAM_DEV(PPOD_EDRAM);
+               rc = -t4_query_params(sc, sc->mbox, sc->pf, 0, 1, &param, &val);
+               if (rc == 0 && val == 1) {
+                       rc = -t4_set_params(sc, sc->mbox, sc->pf, 0, 1, &param,
+                           &val);
+                       if (rc != 0) {
+                               device_printf(sc->dev,
+                                   "failed to set PPOD_EDRAM: %d.\n", rc);
+                       }
+               }
        }
 
        /* Enable opaque VIIDs with firmwares that support it. */