From 042f4ba62ff5fbe1428639187578bae39f513e23 Mon Sep 17 00:00:00 2001 From: Jakub Kicinski Date: Mon, 5 Jun 2017 17:01:47 -0700 Subject: [PATCH] nfp: make sure debug accesses don't depend on netdevs We want to be able to inspect the state of descriptor rings of the control vNIC, so it will use the same interface as data vNICs. Make sure the code doesn't use netdevs to determine state of the rings and names things appropriately. Signed-off-by: Jakub Kicinski Signed-off-by: David S. Miller --- drivers/net/ethernet/netronome/nfp/nfp_net.h | 11 +++++++++++ drivers/net/ethernet/netronome/nfp/nfp_net_debugfs.c | 9 ++++++--- 2 files changed, 17 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net.h b/drivers/net/ethernet/netronome/nfp/nfp_net.h index b14aa31d494a..3eec4195c155 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net.h +++ b/drivers/net/ethernet/netronome/nfp/nfp_net.h @@ -805,6 +805,17 @@ static inline u32 nfp_qcp_wr_ptr_read(u8 __iomem *q) return _nfp_qcp_read(q, NFP_QCP_WRITE_PTR); } +static inline bool nfp_net_is_data_vnic(struct nfp_net *nn) +{ + WARN_ON_ONCE(!nn->dp.netdev && nn->port); + return !!nn->dp.netdev; +} + +static inline bool nfp_net_running(struct nfp_net *nn) +{ + return nn->dp.ctrl & NFP_NET_CFG_CTRL_ENABLE; +} + /* Globals */ extern const char nfp_driver_version[]; diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_debugfs.c b/drivers/net/ethernet/netronome/nfp/nfp_net_debugfs.c index 8c52c0e8379c..40217ece5fcb 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net_debugfs.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_net_debugfs.c @@ -54,7 +54,7 @@ static int nfp_net_debugfs_rx_q_read(struct seq_file *file, void *data) goto out; nn = r_vec->nfp_net; rx_ring = r_vec->rx_ring; - if (!netif_running(nn->dp.netdev)) + if (!nfp_net_running(nn)) goto out; rxd_cnt = rx_ring->cnt; @@ -138,7 +138,7 @@ static int nfp_net_debugfs_tx_q_read(struct seq_file *file, void *data) if (!r_vec->nfp_net || !tx_ring) goto out; nn = r_vec->nfp_net; - if (!netif_running(nn->dp.netdev)) + if (!nfp_net_running(nn)) goto out; txd_cnt = tx_ring->cnt; @@ -209,7 +209,10 @@ void nfp_net_debugfs_vnic_add(struct nfp_net *nn, struct dentry *ddir, int id) if (IS_ERR_OR_NULL(nfp_dir)) return; - sprintf(name, "vnic%d", id); + if (nfp_net_is_data_vnic(nn)) + sprintf(name, "vnic%d", id); + else + strcpy(name, "ctrl-vnic"); nn->debugfs_dir = debugfs_create_dir(name, ddir); if (IS_ERR_OR_NULL(nn->debugfs_dir)) return; -- 2.30.2