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Miller" , Eric Dumazet , Paolo Abeni , oss-drivers@corigine.com (open list:NETRONOME ETHERNET DRIVERS), linux-kernel@vger.kernel.org (open list) Subject: [PATCH] net: netronome: use double ptr for gstrings Date: Fri, 8 Nov 2024 12:41:54 -0800 Message-ID: <20241108204154.305560-1-rosenp@gmail.com> X-Mailer: git-send-email 2.47.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Currently the code copies a pointer and propagates increments that way. Instead of doing that, increment with a double pointer, which the ethtool string helpers expect. Also converted some memcpy calls to ethtool_puts, as they should be. Signed-off-by: Rosen Penev --- drivers/net/ethernet/netronome/nfp/abm/main.c | 12 +- drivers/net/ethernet/netronome/nfp/nfp_app.c | 6 +- drivers/net/ethernet/netronome/nfp/nfp_app.h | 6 +- .../ethernet/netronome/nfp/nfp_net_ethtool.c | 119 ++++++++---------- 4 files changed, 65 insertions(+), 78 deletions(-) diff --git a/drivers/net/ethernet/netronome/nfp/abm/main.c b/drivers/net/et= hernet/netronome/nfp/abm/main.c index 5d3df28c648f..ee6dbe4f8c42 100644 --- a/drivers/net/ethernet/netronome/nfp/abm/main.c +++ b/drivers/net/ethernet/netronome/nfp/abm/main.c @@ -407,22 +407,20 @@ nfp_abm_port_get_stats_count(struct nfp_app *app, str= uct nfp_port *port) return alink->vnic->dp.num_r_vecs * 2; } =20 -static u8 * -nfp_abm_port_get_stats_strings(struct nfp_app *app, struct nfp_port *port, - u8 *data) +static void nfp_abm_port_get_stats_strings(struct nfp_app *app, + struct nfp_port *port, u8 **data) { struct nfp_repr *repr =3D netdev_priv(port->netdev); struct nfp_abm_link *alink; unsigned int i; =20 if (port->type !=3D NFP_PORT_PF_PORT) - return data; + return; alink =3D repr->app_priv; for (i =3D 0; i < alink->vnic->dp.num_r_vecs; i++) { - ethtool_sprintf(&data, "q%u_no_wait", i); - ethtool_sprintf(&data, "q%u_delayed", i); + ethtool_sprintf(data, "q%u_no_wait", i); + ethtool_sprintf(data, "q%u_delayed", i); } - return data; } =20 static int nfp_abm_fw_init_reset(struct nfp_abm *abm) diff --git a/drivers/net/ethernet/netronome/nfp/nfp_app.c b/drivers/net/eth= ernet/netronome/nfp/nfp_app.c index bb3f46c74f77..294181c7ebad 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_app.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_app.c @@ -92,11 +92,11 @@ int nfp_app_port_get_stats_count(struct nfp_port *port) return port->app->type->port_get_stats_count(port->app, port); } =20 -u8 *nfp_app_port_get_stats_strings(struct nfp_port *port, u8 *data) +void nfp_app_port_get_stats_strings(struct nfp_port *port, u8 **data) { if (!port || !port->app || !port->app->type->port_get_stats_strings) - return data; - return port->app->type->port_get_stats_strings(port->app, port, data); + return; + port->app->type->port_get_stats_strings(port->app, port, data); } =20 struct sk_buff * diff --git a/drivers/net/ethernet/netronome/nfp/nfp_app.h b/drivers/net/eth= ernet/netronome/nfp/nfp_app.h index 90707346a4ef..fc4dbcc8c7e1 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_app.h +++ b/drivers/net/ethernet/netronome/nfp/nfp_app.h @@ -116,8 +116,8 @@ struct nfp_app_type { u64 *(*port_get_stats)(struct nfp_app *app, struct nfp_port *port, u64 *data); int (*port_get_stats_count)(struct nfp_app *app, struct nfp_port *port); - u8 *(*port_get_stats_strings)(struct nfp_app *app, - struct nfp_port *port, u8 *data); + void (*port_get_stats_strings)(struct nfp_app *app, + struct nfp_port *port, u8 **data); =20 int (*start)(struct nfp_app *app); void (*stop)(struct nfp_app *app); @@ -421,7 +421,7 @@ struct nfp_app *nfp_app_from_netdev(struct net_device *= netdev); =20 u64 *nfp_app_port_get_stats(struct nfp_port *port, u64 *data); int nfp_app_port_get_stats_count(struct nfp_port *port); -u8 *nfp_app_port_get_stats_strings(struct nfp_port *port, u8 *data); +void nfp_app_port_get_stats_strings(struct nfp_port *port, u8 **data); =20 struct nfp_reprs * nfp_reprs_get_locked(struct nfp_app *app, enum nfp_repr_type type); diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c b/drivers= /net/ethernet/netronome/nfp/nfp_net_ethtool.c index fbca8d0efd85..6dfaaca737e2 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c @@ -848,37 +848,35 @@ static unsigned int nfp_vnic_get_sw_stats_count(struc= t net_device *netdev) NN_CTRL_PATH_STATS; } =20 -static u8 *nfp_vnic_get_sw_stats_strings(struct net_device *netdev, u8 *da= ta) +static void nfp_vnic_get_sw_stats_strings(struct net_device *netdev, u8 **= data) { struct nfp_net *nn =3D netdev_priv(netdev); int i; =20 for (i =3D 0; i < nn->max_r_vecs; i++) { - ethtool_sprintf(&data, "rvec_%u_rx_pkts", i); - ethtool_sprintf(&data, "rvec_%u_tx_pkts", i); - ethtool_sprintf(&data, "rvec_%u_tx_busy", i); - } - - ethtool_puts(&data, "hw_rx_csum_ok"); - ethtool_puts(&data, "hw_rx_csum_inner_ok"); - ethtool_puts(&data, "hw_rx_csum_complete"); - ethtool_puts(&data, "hw_rx_csum_err"); - ethtool_puts(&data, "rx_replace_buf_alloc_fail"); - ethtool_puts(&data, "rx_tls_decrypted_packets"); - ethtool_puts(&data, "hw_tx_csum"); - ethtool_puts(&data, "hw_tx_inner_csum"); - ethtool_puts(&data, "tx_gather"); - ethtool_puts(&data, "tx_lso"); - ethtool_puts(&data, "tx_tls_encrypted_packets"); - ethtool_puts(&data, "tx_tls_ooo"); - ethtool_puts(&data, "tx_tls_drop_no_sync_data"); - - ethtool_puts(&data, "hw_tls_no_space"); - ethtool_puts(&data, "rx_tls_resync_req_ok"); - ethtool_puts(&data, "rx_tls_resync_req_ign"); - ethtool_puts(&data, "rx_tls_resync_sent"); - - return data; + ethtool_sprintf(data, "rvec_%u_rx_pkts", i); + ethtool_sprintf(data, "rvec_%u_tx_pkts", i); + ethtool_sprintf(data, "rvec_%u_tx_busy", i); + } + + ethtool_puts(data, "hw_rx_csum_ok"); + ethtool_puts(data, "hw_rx_csum_inner_ok"); + ethtool_puts(data, "hw_rx_csum_complete"); + ethtool_puts(data, "hw_rx_csum_err"); + ethtool_puts(data, "rx_replace_buf_alloc_fail"); + ethtool_puts(data, "rx_tls_decrypted_packets"); + ethtool_puts(data, "hw_tx_csum"); + ethtool_puts(data, "hw_tx_inner_csum"); + ethtool_puts(data, "tx_gather"); + ethtool_puts(data, "tx_lso"); + ethtool_puts(data, "tx_tls_encrypted_packets"); + ethtool_puts(data, "tx_tls_ooo"); + ethtool_puts(data, "tx_tls_drop_no_sync_data"); + + ethtool_puts(data, "hw_tls_no_space"); + ethtool_puts(data, "rx_tls_resync_req_ok"); + ethtool_puts(data, "rx_tls_resync_req_ign"); + ethtool_puts(data, "rx_tls_resync_sent"); } =20 static u64 *nfp_vnic_get_sw_stats(struct net_device *netdev, u64 *data) @@ -937,8 +935,8 @@ static unsigned int nfp_vnic_get_hw_stats_count(unsigne= d int num_vecs) return NN_ET_GLOBAL_STATS_LEN + num_vecs * 4; } =20 -static u8 * -nfp_vnic_get_hw_stats_strings(u8 *data, unsigned int num_vecs, bool repr) +static void nfp_vnic_get_hw_stats_strings(u8 **data, unsigned int num_vecs, + bool repr) { int swap_off, i; =20 @@ -950,22 +948,20 @@ nfp_vnic_get_hw_stats_strings(u8 *data, unsigned int = num_vecs, bool repr) swap_off =3D repr * NN_ET_SWITCH_STATS_LEN; =20 for (i =3D 0; i < NN_ET_SWITCH_STATS_LEN; i++) - ethtool_puts(&data, nfp_net_et_stats[i + swap_off].name); + ethtool_puts(data, nfp_net_et_stats[i + swap_off].name); =20 for (i =3D NN_ET_SWITCH_STATS_LEN; i < NN_ET_SWITCH_STATS_LEN * 2; i++) - ethtool_puts(&data, nfp_net_et_stats[i - swap_off].name); + ethtool_puts(data, nfp_net_et_stats[i - swap_off].name); =20 for (i =3D NN_ET_SWITCH_STATS_LEN * 2; i < NN_ET_GLOBAL_STATS_LEN; i++) - ethtool_puts(&data, nfp_net_et_stats[i].name); + ethtool_puts(data, nfp_net_et_stats[i].name); =20 for (i =3D 0; i < num_vecs; i++) { - ethtool_sprintf(&data, "rxq_%u_pkts", i); - ethtool_sprintf(&data, "rxq_%u_bytes", i); - ethtool_sprintf(&data, "txq_%u_pkts", i); - ethtool_sprintf(&data, "txq_%u_bytes", i); + ethtool_sprintf(data, "rxq_%u_pkts", i); + ethtool_sprintf(data, "rxq_%u_bytes", i); + ethtool_sprintf(data, "txq_%u_pkts", i); + ethtool_sprintf(data, "txq_%u_bytes", i); } - - return data; } =20 static u64 * @@ -991,7 +987,7 @@ static unsigned int nfp_vnic_get_tlv_stats_count(struct= nfp_net *nn) return nn->tlv_caps.vnic_stats_cnt + nn->max_r_vecs * 4; } =20 -static u8 *nfp_vnic_get_tlv_stats_strings(struct nfp_net *nn, u8 *data) +static void nfp_vnic_get_tlv_stats_strings(struct nfp_net *nn, u8 **data) { unsigned int i, id; u8 __iomem *mem; @@ -1006,22 +1002,18 @@ static u8 *nfp_vnic_get_tlv_stats_strings(struct nf= p_net *nn, u8 *data) id_word >>=3D 16; =20 if (id < ARRAY_SIZE(nfp_tlv_stat_names) && - nfp_tlv_stat_names[id][0]) { - memcpy(data, nfp_tlv_stat_names[id], ETH_GSTRING_LEN); - data +=3D ETH_GSTRING_LEN; - } else { - ethtool_sprintf(&data, "dev_unknown_stat%u", id); - } + nfp_tlv_stat_names[id][0]) + ethtool_puts(data, nfp_tlv_stat_names[id]); + else + ethtool_sprintf(data, "dev_unknown_stat%u", id); } =20 for (i =3D 0; i < nn->max_r_vecs; i++) { - ethtool_sprintf(&data, "rxq_%u_pkts", i); - ethtool_sprintf(&data, "rxq_%u_bytes", i); - ethtool_sprintf(&data, "txq_%u_pkts", i); - ethtool_sprintf(&data, "txq_%u_bytes", i); + ethtool_sprintf(data, "rxq_%u_pkts", i); + ethtool_sprintf(data, "rxq_%u_bytes", i); + ethtool_sprintf(data, "txq_%u_pkts", i); + ethtool_sprintf(data, "txq_%u_bytes", i); } - - return data; } =20 static u64 *nfp_vnic_get_tlv_stats(struct nfp_net *nn, u64 *data) @@ -1056,19 +1048,17 @@ static unsigned int nfp_mac_get_stats_count(struct = net_device *netdev) return ARRAY_SIZE(nfp_mac_et_stats); } =20 -static u8 *nfp_mac_get_stats_strings(struct net_device *netdev, u8 *data) +static void nfp_mac_get_stats_strings(struct net_device *netdev, u8 **data) { struct nfp_port *port; unsigned int i; =20 port =3D nfp_port_from_netdev(netdev); if (!__nfp_port_get_eth_port(port) || !port->eth_stats) - return data; + return; =20 for (i =3D 0; i < ARRAY_SIZE(nfp_mac_et_stats); i++) - ethtool_sprintf(&data, "mac.%s", nfp_mac_et_stats[i].name); - - return data; + ethtool_sprintf(data, "mac.%s", nfp_mac_et_stats[i].name); } =20 static u64 *nfp_mac_get_stats(struct net_device *netdev, u64 *data) @@ -1093,15 +1083,14 @@ static void nfp_net_get_strings(struct net_device *= netdev, =20 switch (stringset) { case ETH_SS_STATS: - data =3D nfp_vnic_get_sw_stats_strings(netdev, data); + nfp_vnic_get_sw_stats_strings(netdev, &data); if (!nn->tlv_caps.vnic_stats_off) - data =3D nfp_vnic_get_hw_stats_strings(data, - nn->max_r_vecs, - false); + nfp_vnic_get_hw_stats_strings(&data, nn->max_r_vecs, + false); else - data =3D nfp_vnic_get_tlv_stats_strings(nn, data); - data =3D nfp_mac_get_stats_strings(netdev, data); - data =3D nfp_app_port_get_stats_strings(nn->port, data); + nfp_vnic_get_tlv_stats_strings(nn, &data); + nfp_mac_get_stats_strings(netdev, &data); + nfp_app_port_get_stats_strings(nn->port, &data); break; case ETH_SS_TEST: nfp_get_self_test_strings(netdev, data); @@ -1155,10 +1144,10 @@ static void nfp_port_get_strings(struct net_device = *netdev, switch (stringset) { case ETH_SS_STATS: if (nfp_port_is_vnic(port)) - data =3D nfp_vnic_get_hw_stats_strings(data, 0, true); + nfp_vnic_get_hw_stats_strings(&data, 0, true); else - data =3D nfp_mac_get_stats_strings(netdev, data); - data =3D nfp_app_port_get_stats_strings(port, data); + nfp_mac_get_stats_strings(netdev, &data); + nfp_app_port_get_stats_strings(port, &data); break; case ETH_SS_TEST: nfp_get_self_test_strings(netdev, data); --=20 2.47.0