diff mbox series

[v3,03/16] octeontx2-af: Cleanup CGX config permission checks

Message ID 1574272086-21055-4-git-send-email-sunil.kovvuri@gmail.com
State Changes Requested
Delegated to: David Miller
Headers show
Series octeontx2-af: SSO, TIM HW blocks and other config support | expand

Commit Message

Sunil Kovvuri Nov. 20, 2019, 5:47 p.m. UTC 
From: Sunil Goutham <sgoutham@marvell.com>

Most of the CGX register config is restricted to mapped RVU PFs,
this patch cleans up these permission checks spread across
the rvu_cgx.c file by moving the checks to a common fn().

Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
---
 .../net/ethernet/marvell/octeontx2/af/rvu_cgx.c    | 55 ++++++++++------------
 1 file changed, 24 insertions(+), 31 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c
index 0bbb2eb..e3c87c2 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c
@@ -350,6 +350,18 @@  int rvu_cgx_exit(struct rvu *rvu)
 	return 0;
 }
 
+/* Most of the CGX configuration is restricted to the mapped PF only,
+ * VF's of mapped PF and other PFs are not allowed. This fn() checks
+ * whether a PFFUNC is permitted to do the config or not.
+ */
+static bool is_cgx_config_permitted(struct rvu *rvu, u16 pcifunc)
+{
+	if ((pcifunc & RVU_PFVF_FUNC_MASK) ||
+	    !is_pf_cgxmapped(rvu, rvu_get_pf(pcifunc)))
+		return false;
+	return true;
+}
+
 void rvu_cgx_enadis_rx_bp(struct rvu *rvu, int pf, bool enable)
 {
 	u8 cgx_id, lmac_id;
@@ -373,11 +385,8 @@  int rvu_cgx_config_rxtx(struct rvu *rvu, u16 pcifunc, bool start)
 	int pf = rvu_get_pf(pcifunc);
 	u8 cgx_id, lmac_id;
 
-	/* This msg is expected only from PFs that are mapped to CGX 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_cgx_config_permitted(rvu, pcifunc))
+		return -EPERM;
 
 	rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
 
@@ -409,8 +418,7 @@  int rvu_mbox_handler_cgx_stats(struct rvu *rvu, struct msg_req *req,
 	u8 cgx_idx, lmac;
 	void *cgxd;
 
-	if ((req->hdr.pcifunc & RVU_PFVF_FUNC_MASK) ||
-	    !is_pf_cgxmapped(rvu, pf))
+	if (!is_cgx_config_permitted(rvu, req->hdr.pcifunc))
 		return -ENODEV;
 
 	rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_idx, &lmac);
@@ -477,12 +485,8 @@  int rvu_mbox_handler_cgx_promisc_enable(struct rvu *rvu, struct msg_req *req,
 	int pf = rvu_get_pf(pcifunc);
 	u8 cgx_id, lmac_id;
 
-	/* This msg is expected only from PFs that are mapped to CGX LMACs,
-	 * if received from other PF/VF simply ACK, nothing to do.
-	 */
-	if ((req->hdr.pcifunc & RVU_PFVF_FUNC_MASK) ||
-	    !is_pf_cgxmapped(rvu, pf))
-		return -ENODEV;
+	if (!is_cgx_config_permitted(rvu, req->hdr.pcifunc))
+		return -EPERM;
 
 	rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
 
@@ -493,16 +497,11 @@  int rvu_mbox_handler_cgx_promisc_enable(struct rvu *rvu, struct msg_req *req,
 int rvu_mbox_handler_cgx_promisc_disable(struct rvu *rvu, struct msg_req *req,
 					 struct msg_rsp *rsp)
 {
-	u16 pcifunc = req->hdr.pcifunc;
-	int pf = rvu_get_pf(pcifunc);
+	int pf = rvu_get_pf(req->hdr.pcifunc);
 	u8 cgx_id, lmac_id;
 
-	/* This msg is expected only from PFs that are mapped to CGX LMACs,
-	 * if received from other PF/VF simply ACK, nothing to do.
-	 */
-	if ((req->hdr.pcifunc & RVU_PFVF_FUNC_MASK) ||
-	    !is_pf_cgxmapped(rvu, pf))
-		return -ENODEV;
+	if (!is_cgx_config_permitted(rvu, req->hdr.pcifunc))
+		return -EPERM;
 
 	rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
 
@@ -515,11 +514,8 @@  static int rvu_cgx_config_linkevents(struct rvu *rvu, u16 pcifunc, bool en)
 	int pf = rvu_get_pf(pcifunc);
 	u8 cgx_id, lmac_id;
 
-	/* This msg is expected only from PFs that are mapped to CGX 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_cgx_config_permitted(rvu, pcifunc))
+		return -EPERM;
 
 	rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
 
@@ -571,11 +567,8 @@  static int rvu_cgx_config_intlbk(struct rvu *rvu, u16 pcifunc, bool en)
 	int pf = rvu_get_pf(pcifunc);
 	u8 cgx_id, lmac_id;
 
-	/* This msg is expected only from PFs that are mapped to CGX 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_cgx_config_permitted(rvu, pcifunc))
+		return -EPERM;
 
 	rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);