netdev - [PATCH net-next 2/7] nfp: pass ctrl_bar pointer to nfp_net

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Message-Id: <20181109035039.25823-3-jakub.kicinski@netronome.com>
Date:   Thu,  8 Nov 2018 19:50:34 -0800
From:   Jakub Kicinski <jakub.kicinski@...ronome.com>
To:     davem@...emloft.net
Cc:     netdev@...r.kernel.org, oss-drivers@...ronome.com,
        Jakub Kicinski <jakub.kicinski@...ronome.com>
Subject: [PATCH net-next 2/7] nfp: pass ctrl_bar pointer to nfp_net_alloc

Move setting ctrl_bar pointer to the nfp_net_alloc function,
to make sure we can parse capabilities early in the following
patch.

Signed-off-by: Jakub Kicinski <jakub.kicinski@...ronome.com>
Reviewed-by: John Hurley <john.hurley@...ronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@...ronome.com>
---
 drivers/net/ethernet/netronome/nfp/nfp_net.h        | 2 +-
 drivers/net/ethernet/netronome/nfp/nfp_net_common.c | 8 +++++---
 drivers/net/ethernet/netronome/nfp/nfp_net_main.c   | 4 ++--
 drivers/net/ethernet/netronome/nfp/nfp_netvf_main.c | 3 +--
 4 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net.h b/drivers/net/ethernet/netronome/nfp/nfp_net.h
index 6f0c37d09256..dda02fefc806 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_net.h
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net.h
@@ -851,7 +851,7 @@ void nfp_net_get_fw_version(struct nfp_net_fw_version *fw_ver,
 			    void __iomem *ctrl_bar);
 
 struct nfp_net *
-nfp_net_alloc(struct pci_dev *pdev, bool needs_netdev,
+nfp_net_alloc(struct pci_dev *pdev, void __iomem *ctrl_bar, bool needs_netdev,
 	      unsigned int max_tx_rings, unsigned int max_rx_rings);
 void nfp_net_free(struct nfp_net *nn);
 
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
index 6bddfcfdec34..54ce8353715f 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
@@ -3560,6 +3560,7 @@ void nfp_net_info(struct nfp_net *nn)
 /**
  * nfp_net_alloc() - Allocate netdev and related structure
  * @pdev:         PCI device
+ * @ctrl_bar:     PCI IOMEM with vNIC config memory
  * @needs_netdev: Whether to allocate a netdev for this vNIC
  * @max_tx_rings: Maximum number of TX rings supported by device
  * @max_rx_rings: Maximum number of RX rings supported by device
@@ -3570,9 +3571,9 @@ void nfp_net_info(struct nfp_net *nn)
  *
  * Return: NFP Net device structure, or ERR_PTR on error.
  */
-struct nfp_net *nfp_net_alloc(struct pci_dev *pdev, bool needs_netdev,
-			      unsigned int max_tx_rings,
-			      unsigned int max_rx_rings)
+struct nfp_net *
+nfp_net_alloc(struct pci_dev *pdev, void __iomem *ctrl_bar, bool needs_netdev,
+	      unsigned int max_tx_rings, unsigned int max_rx_rings)
 {
 	struct nfp_net *nn;
 
@@ -3594,6 +3595,7 @@ struct nfp_net *nfp_net_alloc(struct pci_dev *pdev, bool needs_netdev,
 	}
 
 	nn->dp.dev = &pdev->dev;
+	nn->dp.ctrl_bar = ctrl_bar;
 	nn->pdev = pdev;
 
 	nn->max_tx_rings = max_tx_rings;
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_main.c b/drivers/net/ethernet/netronome/nfp/nfp_net_main.c
index 1e7d20468a34..08f5fdbd8e41 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_main.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_main.c
@@ -116,13 +116,13 @@ nfp_net_pf_alloc_vnic(struct nfp_pf *pf, bool needs_netdev,
 	n_rx_rings = readl(ctrl_bar + NFP_NET_CFG_MAX_RXRINGS);
 
 	/* Allocate and initialise the vNIC */
-	nn = nfp_net_alloc(pf->pdev, needs_netdev, n_tx_rings, n_rx_rings);
+	nn = nfp_net_alloc(pf->pdev, ctrl_bar, needs_netdev,
+			   n_tx_rings, n_rx_rings);
 	if (IS_ERR(nn))
 		return nn;
 
 	nn->app = pf->app;
 	nfp_net_get_fw_version(&nn->fw_ver, ctrl_bar);
-	nn->dp.ctrl_bar = ctrl_bar;
 	nn->tx_bar = qc_bar + tx_base * NFP_QCP_QUEUE_ADDR_SZ;
 	nn->rx_bar = qc_bar + rx_base * NFP_QCP_QUEUE_ADDR_SZ;
 	nn->dp.is_vf = 0;
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_netvf_main.c b/drivers/net/ethernet/netronome/nfp/nfp_netvf_main.c
index d2c1e9ea5668..1145849ca7ba 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_netvf_main.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_netvf_main.c
@@ -172,7 +172,7 @@ static int nfp_netvf_pci_probe(struct pci_dev *pdev,
 	rx_bar_off = NFP_PCIE_QUEUE(startq);
 
 	/* Allocate and initialise the netdev */
-	nn = nfp_net_alloc(pdev, true, max_tx_rings, max_rx_rings);
+	nn = nfp_net_alloc(pdev, ctrl_bar, true, max_tx_rings, max_rx_rings);
 	if (IS_ERR(nn)) {
 		err = PTR_ERR(nn);
 		goto err_ctrl_unmap;
@@ -180,7 +180,6 @@ static int nfp_netvf_pci_probe(struct pci_dev *pdev,
 	vf->nn = nn;
 
 	nn->fw_ver = fw_ver;
-	nn->dp.ctrl_bar = ctrl_bar;
 	nn->dp.is_vf = 1;
 	nn->stride_tx = stride;
 	nn->stride_rx = stride;
-- 
2.17.1