diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h index fa6e46e36ae4..76f399229ddb 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h @@ -678,6 +678,7 @@ void npc_read_mcam_entry(struct rvu *rvu, struct npc_mcam *mcam, u8 *intf, u8 *ena); bool is_mac_feature_supported(struct rvu *rvu, int pf, int feature); u32 rvu_cgx_get_fifolen(struct rvu *rvu); +void *rvu_first_cgx_pdata(struct rvu *rvu); /* CPT APIs */ int rvu_cpt_lf_teardown(struct rvu *rvu, u16 pcifunc, int lf, int slot); diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c index e668e482383a..6e2bf4fcd29c 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c @@ -89,6 +89,21 @@ void *rvu_cgx_pdata(u8 cgx_id, struct rvu *rvu) return rvu->cgx_idmap[cgx_id]; } +/* Return first enabled CGX instance if none are enabled then return NULL */ +void *rvu_first_cgx_pdata(struct rvu *rvu) +{ + int first_enabled_cgx = 0; + void *cgxd = NULL; + + for (; first_enabled_cgx < rvu->cgx_cnt_max; first_enabled_cgx++) { + cgxd = rvu_cgx_pdata(first_enabled_cgx, rvu); + if (cgxd) + break; + } + + return cgxd; +} + /* Based on P2X connectivity find mapped NIX block for a PF */ static void rvu_map_cgx_nix_block(struct rvu *rvu, int pf, int cgx_id, int lmac_id) @@ -711,10 +726,9 @@ int rvu_mbox_handler_cgx_features_get(struct rvu *rvu, u32 rvu_cgx_get_fifolen(struct rvu *rvu) { struct mac_ops *mac_ops; - int rvu_def_cgx_id = 0; u32 fifo_len; - mac_ops = get_mac_ops(rvu_cgx_pdata(rvu_def_cgx_id, rvu)); + mac_ops = get_mac_ops(rvu_first_cgx_pdata(rvu)); fifo_len = mac_ops ? mac_ops->fifo_len : 0; return fifo_len; diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c index dc946953af06..b4c53b19f535 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c @@ -331,7 +331,6 @@ static int rvu_dbg_rvu_pf_cgx_map_display(struct seq_file *filp, void *unused) struct rvu *rvu = filp->private; struct pci_dev *pdev = NULL; struct mac_ops *mac_ops; - int rvu_def_cgx_id = 0; char cgx[10], lmac[10]; struct rvu_pfvf *pfvf; int pf, domain, blkid; @@ -339,7 +338,10 @@ static int rvu_dbg_rvu_pf_cgx_map_display(struct seq_file *filp, void *unused) u16 pcifunc; domain = 2; - mac_ops = get_mac_ops(rvu_cgx_pdata(rvu_def_cgx_id, rvu)); + mac_ops = get_mac_ops(rvu_first_cgx_pdata(rvu)); + /* There can be no CGX devices at all */ + if (!mac_ops) + return 0; seq_printf(filp, "PCI dev\t\tRVU PF Func\tNIX block\t%s\tLMAC\n", mac_ops->name); for (pf = 0; pf < rvu->hw->total_pfs; pf++) { @@ -1830,7 +1832,6 @@ static void rvu_dbg_cgx_init(struct rvu *rvu) { struct mac_ops *mac_ops; unsigned long lmac_bmap; - int rvu_def_cgx_id = 0; int i, lmac_id; char dname[20]; void *cgx; @@ -1838,7 +1839,7 @@ static void rvu_dbg_cgx_init(struct rvu *rvu) if (!cgx_get_cgxcnt_max()) return; - mac_ops = get_mac_ops(rvu_cgx_pdata(rvu_def_cgx_id, rvu)); + mac_ops = get_mac_ops(rvu_first_cgx_pdata(rvu)); if (!mac_ops) return;