From: Edward Cree <ecree@solarflare.com>
To: <linux-net-drivers@solarflare.com>, <davem@davemloft.net>
Cc: <netdev@vger.kernel.org>
Subject: [PATCH v2 net-next 11/16] sfc_ef100: read datapath caps, implement check_caps
Date: Mon, 13 Jul 2020 12:35:01 +0100 [thread overview]
Message-ID: <96b7fc93-0724-55ae-b1f5-fdee38472d8f@solarflare.com> (raw)
In-Reply-To: <dbd87499-161e-09f3-7dec-8b7c13ad02dd@solarflare.com>
Signed-off-by: Edward Cree <ecree@solarflare.com>
---
drivers/net/ethernet/sfc/ef100_nic.c | 58 +++++++++++++++++++++++++++-
drivers/net/ethernet/sfc/ef100_nic.h | 2 +
2 files changed, 58 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/sfc/ef100_nic.c b/drivers/net/ethernet/sfc/ef100_nic.c
index d415d25e532a..06e9ae58f1c6 100644
--- a/drivers/net/ethernet/sfc/ef100_nic.c
+++ b/drivers/net/ethernet/sfc/ef100_nic.c
@@ -124,6 +124,49 @@ static void ef100_mcdi_reboot_detected(struct efx_nic *efx)
{
}
+/* MCDI calls
+ */
+static int efx_ef100_init_datapath_caps(struct efx_nic *efx)
+{
+ MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_CAPABILITIES_V4_OUT_LEN);
+ struct ef100_nic_data *nic_data = efx->nic_data;
+ u8 vi_window_mode;
+ size_t outlen;
+ int rc;
+
+ BUILD_BUG_ON(MC_CMD_GET_CAPABILITIES_IN_LEN != 0);
+
+ rc = efx_mcdi_rpc(efx, MC_CMD_GET_CAPABILITIES, NULL, 0,
+ outbuf, sizeof(outbuf), &outlen);
+ if (rc)
+ return rc;
+ if (outlen < MC_CMD_GET_CAPABILITIES_V4_OUT_LEN) {
+ netif_err(efx, drv, efx->net_dev,
+ "unable to read datapath firmware capabilities\n");
+ return -EIO;
+ }
+
+ nic_data->datapath_caps = MCDI_DWORD(outbuf,
+ GET_CAPABILITIES_OUT_FLAGS1);
+ nic_data->datapath_caps2 = MCDI_DWORD(outbuf,
+ GET_CAPABILITIES_V2_OUT_FLAGS2);
+
+ vi_window_mode = MCDI_BYTE(outbuf,
+ GET_CAPABILITIES_V3_OUT_VI_WINDOW_MODE);
+ rc = efx_mcdi_window_mode_to_stride(efx, vi_window_mode);
+ if (rc)
+ return rc;
+
+ if (efx_ef100_has_cap(nic_data->datapath_caps2, TX_TSO_V3))
+ efx->net_dev->features |= NETIF_F_TSO | NETIF_F_TSO6;
+ efx->num_mac_stats = MCDI_WORD(outbuf,
+ GET_CAPABILITIES_V4_OUT_MAC_STATS_NUM_STATS);
+ netif_dbg(efx, probe, efx->net_dev,
+ "firmware reports num_mac_stats = %u\n",
+ efx->num_mac_stats);
+ return 0;
+}
+
/* Event handling
*/
static int ef100_ev_probe(struct efx_channel *channel)
@@ -299,8 +342,16 @@ static int ef100_reset(struct efx_nic *efx, enum reset_type reset_type)
static unsigned int ef100_check_caps(const struct efx_nic *efx,
u8 flag, u32 offset)
{
- /* stub */
- return 0;
+ const struct ef100_nic_data *nic_data = efx->nic_data;
+
+ switch (offset) {
+ case MC_CMD_GET_CAPABILITIES_V8_OUT_FLAGS1_OFST:
+ return nic_data->datapath_caps & BIT_ULL(flag);
+ case MC_CMD_GET_CAPABILITIES_V8_OUT_FLAGS2_OFST:
+ return nic_data->datapath_caps2 & BIT_ULL(flag);
+ default:
+ return 0;
+ }
}
/* NIC level access functions
@@ -409,6 +460,9 @@ static int ef100_probe_main(struct efx_nic *efx)
}
if (rc)
goto fail;
+ rc = efx_ef100_init_datapath_caps(efx);
+ if (rc < 0)
+ goto fail;
efx->max_vis = EF100_MAX_VIS;
diff --git a/drivers/net/ethernet/sfc/ef100_nic.h b/drivers/net/ethernet/sfc/ef100_nic.h
index 5d376e2d98a7..392611cc33b5 100644
--- a/drivers/net/ethernet/sfc/ef100_nic.h
+++ b/drivers/net/ethernet/sfc/ef100_nic.h
@@ -20,6 +20,8 @@ void ef100_remove(struct efx_nic *efx);
struct ef100_nic_data {
struct efx_nic *efx;
struct efx_buffer mcdi_buf;
+ u32 datapath_caps;
+ u32 datapath_caps2;
u16 warm_boot_count;
DECLARE_BITMAP(evq_phases, EFX_MAX_CHANNELS);
};
next prev parent reply other threads:[~2020-07-13 11:35 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-13 11:27 [PATCH v2 net-next 00/16] sfc_ef100: driver for EF100 family NICs, part 1 Edward Cree
2020-07-13 11:29 ` [PATCH v2 net-next 01/16] sfc: remove efx_ethtool_nway_reset() Edward Cree
2020-07-13 11:30 ` [PATCH v2 net-next 02/16] sfc_ef100: add EF100 register definitions Edward Cree
2020-07-13 11:31 ` [PATCH v2 net-next 03/16] sfc_ef100: register accesses on EF100 Edward Cree
2020-07-13 11:32 ` [PATCH v2 net-next 04/16] sfc_ef100: skeleton EF100 PF driver Edward Cree
2020-07-13 23:02 ` Jakub Kicinski
2020-07-14 9:02 ` Edward Cree
2020-07-14 16:33 ` Jakub Kicinski
2020-07-13 23:07 ` Jakub Kicinski
2020-07-13 23:08 ` Jakub Kicinski
2020-07-13 11:32 ` [PATCH v2 net-next 05/16] sfc_ef100: reset-handling stub Edward Cree
2020-07-13 11:32 ` [PATCH v2 net-next 06/16] sfc_ef100: PHY probe stub Edward Cree
2020-07-13 11:33 ` [PATCH v2 net-next 07/16] sfc_ef100: don't call efx_reset_down()/up() on EF100 Edward Cree
2020-07-13 11:33 ` [PATCH v2 net-next 08/16] sfc_ef100: implement MCDI transport Edward Cree
2020-07-13 11:34 ` [PATCH v2 net-next 09/16] sfc_ef100: implement ndo_open/close and EVQ probing Edward Cree
2020-07-13 11:34 ` [PATCH v2 net-next 10/16] sfc_ef100: process events for MCDI completions Edward Cree
2020-07-13 11:35 ` Edward Cree [this message]
2020-07-13 11:35 ` [PATCH v2 net-next 12/16] sfc_ef100: extend ef100_check_caps to cover datapath_caps3 Edward Cree
2020-07-13 11:36 ` [PATCH v2 net-next 13/16] sfc_ef100: actually perform resets Edward Cree
2020-07-13 11:36 ` [PATCH v2 net-next 14/16] sfc_ef100: probe the PHY and configure the MAC Edward Cree
2020-07-13 11:37 ` [PATCH v2 net-next 15/16] sfc_ef100: read device MAC address at probe time Edward Cree
2020-07-13 11:37 ` [PATCH v2 net-next 16/16] sfc_ef100: implement ndo_get_phys_port_{id,name} Edward Cree
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