eth: bnxt: bump the entry size in indir tables to u32

Ethtool core stores indirection table with u32 entries, "just to be safe".
Switch the type in the driver, so that it's easier to swap local tables
for the core ones. Memory allocations already use sizeof(*entry), switch
the memset()s as well.
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Link: https://patch.msgid.link/20240711220713.283778-11-kuba@kernel.orgSigned-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/ethernet/broadcom/bnxt/bnxt.c

@@ -6225,7 +6225,7 @@ static u16 bnxt_cp_ring_for_tx(struct bnxt *bp, struct bnxt_tx_ring_info *txr)
 int bnxt_alloc_rss_indir_tbl(struct bnxt *bp, struct bnxt_rss_ctx *rss_ctx)
 {
 	int entries;
-	u16 *tbl;
+	u32 *tbl;
 
 	if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS)
 		entries = BNXT_MAX_RSS_TABLE_ENTRIES_P5;
@@ -6248,7 +6248,7 @@ int bnxt_alloc_rss_indir_tbl(struct bnxt *bp, struct bnxt_rss_ctx *rss_ctx)
 void bnxt_set_dflt_rss_indir_tbl(struct bnxt *bp, struct bnxt_rss_ctx *rss_ctx)
 {
 	u16 max_rings, max_entries, pad, i;
-	u16 *rss_indir_tbl;
+	u32 *rss_indir_tbl;
 
 	if (!bp->rx_nr_rings)
 		return;
@@ -6269,12 +6269,12 @@ void bnxt_set_dflt_rss_indir_tbl(struct bnxt *bp, struct bnxt_rss_ctx *rss_ctx)
 
 	pad = bp->rss_indir_tbl_entries - max_entries;
 	if (pad)
-		memset(&rss_indir_tbl[i], 0, pad * sizeof(u16));
+		memset(&rss_indir_tbl[i], 0, pad * sizeof(*rss_indir_tbl));
 }
 
 static u16 bnxt_get_max_rss_ring(struct bnxt *bp)
 {
-	u16 i, tbl_size, max_ring = 0;
+	u32 i, tbl_size, max_ring = 0;
 
 	if (!bp->rss_indir_tbl)
 		return 0;

drivers/net/ethernet/broadcom/bnxt/bnxt.h

@@ -1292,7 +1292,7 @@ struct bnxt_vnic_info {
 
 struct bnxt_rss_ctx {
 	struct bnxt_vnic_info vnic;
-	u16	*rss_indir_tbl;
+	u32	*rss_indir_tbl;
 	u8	index;
 };
 
@@ -2331,7 +2331,7 @@ struct bnxt {
 	struct bnxt_vnic_info	*vnic_info;
 	u32			num_rss_ctx;
 	int			nr_vnics;
-	u16			*rss_indir_tbl;
+	u32			*rss_indir_tbl;
 	u16			rss_indir_tbl_entries;
 	u32			rss_hash_cfg;
 	u32			rss_hash_delta;

drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c

@@ -1804,7 +1804,7 @@ static int bnxt_get_rxfh(struct net_device *dev,
 	u32 rss_context = rxfh->rss_context;
 	struct bnxt_rss_ctx *rss_ctx = NULL;
 	struct bnxt *bp = netdev_priv(dev);
-	u16 *indir_tbl = bp->rss_indir_tbl;
+	u32 *indir_tbl = bp->rss_indir_tbl;
 	struct bnxt_vnic_info *vnic;
 	u32 i, tbl_size;
 
@@ -1848,7 +1848,7 @@ static void bnxt_modify_rss(struct bnxt *bp, struct bnxt_rss_ctx *rss_ctx,
 	}
 	if (rxfh->indir) {
 		u32 i, pad, tbl_size = bnxt_get_rxfh_indir_size(bp->dev);
-		u16 *indir_tbl = bp->rss_indir_tbl;
+		u32 *indir_tbl = bp->rss_indir_tbl;
 
 		if (rss_ctx)
 			indir_tbl = rss_ctx->rss_indir_tbl;
@@ -1856,7 +1856,7 @@ static void bnxt_modify_rss(struct bnxt *bp, struct bnxt_rss_ctx *rss_ctx,
 			indir_tbl[i] = rxfh->indir[i];
 		pad = bp->rss_indir_tbl_entries - tbl_size;
 		if (pad)
-			memset(&indir_tbl[i], 0, pad * sizeof(u16));
+			memset(&indir_tbl[i], 0, pad * sizeof(*indir_tbl));
 	}
 }