octeontx2-af: Enable hardware timestamping for VFs

Currently for VFs, mailbox returns ENODEV error when hardware timestamping
enable is requested. This patch fixes this issue. Modified this patch to
return EPERM error for the PF/VFs which are not attached to CGX/RPM.

Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Sunil Kovvuri Goutham <sgoutham@marvell.com>
Signed-off-by: Sai Krishna <saikrishnag@marvell.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20231011121551.1205211-1-saikrishnag@marvell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c
index f2b1edf1bb43c0e67e7cffaf47fa78d66397cd74..15a319684ed364f5c89df0e8b591309b8f9ec1d3 100644 (file)
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c
@@ -756,12 +756,11 @@ static int rvu_cgx_ptp_rx_cfg(struct rvu *rvu, u16 pcifunc, bool enable)
        if (!is_mac_feature_supported(rvu, pf, RVU_LMAC_FEAT_PTP))
                return 0;
 
-       /* This msg is expected only from PFs that are mapped to CGX LMACs,
+       /* This msg is expected only from PF/VFs that are mapped to CGX/RPM LMACs,
         * if received from other PF/VF simply ACK, nothing to do.
         */
-       if ((pcifunc & RVU_PFVF_FUNC_MASK) ||
-           !is_pf_cgxmapped(rvu, pf))
-               return -ENODEV;
+       if (!is_pf_cgxmapped(rvu, pf))
+               return -EPERM;
 
        rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
        cgxd = rvu_cgx_pdata(cgx_id, rvu);