diff mbox series

[net,2/7] ionic: Use cached VF attributes

Message ID 20231201000519.13363-3-shannon.nelson@amd.com (mailing list archive)
State Superseded
Delegated to: Netdev Maintainers
Headers show
Series ionic: small driver fixes | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for net
netdev/ynl success SINGLE THREAD; Generated files up to date; no warnings/errors;
netdev/fixes_present success Fixes tag present in non-next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 8 this patch: 8
netdev/cc_maintainers warning 4 maintainers not CCed: yuehaibing@huawei.com allen.hubbe@amd.com justinstitt@google.com leon@kernel.org
netdev/build_clang success Errors and warnings before: 1142 this patch: 1142
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success Fixes tag looks correct
netdev/build_allmodconfig_warn success Errors and warnings before: 1143 this patch: 1143
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 199 lines checked
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Nelson, Shannon Dec. 1, 2023, 12:05 a.m. UTC 
From: Brett Creeley <brett.creeley@amd.com>

Each time a VF attribute is set via iproute a call to get the VF
configuration is also made. This is currently problematic because for
each VF configuration call there are multiple commands sent to the
device. Unfortunately, this doesn't scale well. Fix this by reporting
the cached VF attributes.

The original change to query the device for getting the VF attributes
was made to remain consistent with device set VF attributes. However,
after further investigation there is no need to query the device.

Fixes: f16f5be31009 ("ionic: Query FW when getting VF info via ndo_get_vf_config")
Signed-off-by: Brett Creeley <brett.creeley@amd.com>
Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
---
 drivers/net/ethernet/pensando/ionic/ionic.h   |  2 -
 .../net/ethernet/pensando/ionic/ionic_dev.c   | 40 --------
 .../net/ethernet/pensando/ionic/ionic_dev.h   |  3 +-
 .../net/ethernet/pensando/ionic/ionic_lif.c   | 93 ++-----------------
 .../net/ethernet/pensando/ionic/ionic_main.c  | 22 -----
 5 files changed, 11 insertions(+), 149 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/pensando/ionic/ionic.h b/drivers/net/ethernet/pensando/ionic/ionic.h
index 2453a40f6ee8..9ffef2e06885 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic.h
+++ b/drivers/net/ethernet/pensando/ionic/ionic.h
@@ -91,6 +91,4 @@  int ionic_port_identify(struct ionic *ionic);
 int ionic_port_init(struct ionic *ionic);
 int ionic_port_reset(struct ionic *ionic);
 
-const char *ionic_vf_attr_to_str(enum ionic_vf_attr attr);
-
 #endif /* _IONIC_H_ */
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_dev.c b/drivers/net/ethernet/pensando/ionic/ionic_dev.c
index c06576f43916..bb9245d933e4 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_dev.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_dev.c
@@ -469,46 +469,6 @@  int ionic_set_vf_config(struct ionic *ionic, int vf,
 	return err;
 }
 
-int ionic_dev_cmd_vf_getattr(struct ionic *ionic, int vf, u8 attr,
-			     struct ionic_vf_getattr_comp *comp)
-{
-	union ionic_dev_cmd cmd = {
-		.vf_getattr.opcode = IONIC_CMD_VF_GETATTR,
-		.vf_getattr.attr = attr,
-		.vf_getattr.vf_index = cpu_to_le16(vf),
-	};
-	int err;
-
-	if (vf >= ionic->num_vfs)
-		return -EINVAL;
-
-	switch (attr) {
-	case IONIC_VF_ATTR_SPOOFCHK:
-	case IONIC_VF_ATTR_TRUST:
-	case IONIC_VF_ATTR_LINKSTATE:
-	case IONIC_VF_ATTR_MAC:
-	case IONIC_VF_ATTR_VLAN:
-	case IONIC_VF_ATTR_RATE:
-		break;
-	case IONIC_VF_ATTR_STATSADDR:
-	default:
-		return -EINVAL;
-	}
-
-	mutex_lock(&ionic->dev_cmd_lock);
-	ionic_dev_cmd_go(&ionic->idev, &cmd);
-	err = ionic_dev_cmd_wait_nomsg(ionic, DEVCMD_TIMEOUT);
-	memcpy_fromio(comp, &ionic->idev.dev_cmd_regs->comp.vf_getattr,
-		      sizeof(*comp));
-	mutex_unlock(&ionic->dev_cmd_lock);
-
-	if (err && comp->status != IONIC_RC_ENOSUPP)
-		ionic_dev_cmd_dev_err_print(ionic, cmd.vf_getattr.opcode,
-					    comp->status, err);
-
-	return err;
-}
-
 void ionic_vf_start(struct ionic *ionic)
 {
 	union ionic_dev_cmd cmd = {
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_dev.h b/drivers/net/ethernet/pensando/ionic/ionic_dev.h
index 9b5463040075..745a3292be92 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_dev.h
+++ b/drivers/net/ethernet/pensando/ionic/ionic_dev.h
@@ -341,8 +341,7 @@  void ionic_dev_cmd_port_pause(struct ionic_dev *idev, u8 pause_type);
 
 int ionic_set_vf_config(struct ionic *ionic, int vf,
 			struct ionic_vf_setattr_cmd *vfc);
-int ionic_dev_cmd_vf_getattr(struct ionic *ionic, int vf, u8 attr,
-			     struct ionic_vf_getattr_comp *comp);
+
 void ionic_dev_cmd_queue_identify(struct ionic_dev *idev,
 				  u16 lif_type, u8 qtype, u8 qver);
 void ionic_vf_start(struct ionic *ionic);
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_lif.c b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
index edc14730ce88..afb77e2d04c5 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_lif.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
@@ -2332,82 +2332,11 @@  static int ionic_eth_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd
 	}
 }
 
-static int ionic_get_fw_vf_config(struct ionic *ionic, int vf, struct ionic_vf *vfdata)
-{
-	struct ionic_vf_getattr_comp comp = { 0 };
-	int err;
-	u8 attr;
-
-	attr = IONIC_VF_ATTR_VLAN;
-	err = ionic_dev_cmd_vf_getattr(ionic, vf, attr, &comp);
-	if (err && comp.status != IONIC_RC_ENOSUPP)
-		goto err_out;
-	if (!err)
-		vfdata->vlanid = comp.vlanid;
-
-	attr = IONIC_VF_ATTR_SPOOFCHK;
-	err = ionic_dev_cmd_vf_getattr(ionic, vf, attr, &comp);
-	if (err && comp.status != IONIC_RC_ENOSUPP)
-		goto err_out;
-	if (!err)
-		vfdata->spoofchk = comp.spoofchk;
-
-	attr = IONIC_VF_ATTR_LINKSTATE;
-	err = ionic_dev_cmd_vf_getattr(ionic, vf, attr, &comp);
-	if (err && comp.status != IONIC_RC_ENOSUPP)
-		goto err_out;
-	if (!err) {
-		switch (comp.linkstate) {
-		case IONIC_VF_LINK_STATUS_UP:
-			vfdata->linkstate = IFLA_VF_LINK_STATE_ENABLE;
-			break;
-		case IONIC_VF_LINK_STATUS_DOWN:
-			vfdata->linkstate = IFLA_VF_LINK_STATE_DISABLE;
-			break;
-		case IONIC_VF_LINK_STATUS_AUTO:
-			vfdata->linkstate = IFLA_VF_LINK_STATE_AUTO;
-			break;
-		default:
-			dev_warn(ionic->dev, "Unexpected link state %u\n", comp.linkstate);
-			break;
-		}
-	}
-
-	attr = IONIC_VF_ATTR_RATE;
-	err = ionic_dev_cmd_vf_getattr(ionic, vf, attr, &comp);
-	if (err && comp.status != IONIC_RC_ENOSUPP)
-		goto err_out;
-	if (!err)
-		vfdata->maxrate = comp.maxrate;
-
-	attr = IONIC_VF_ATTR_TRUST;
-	err = ionic_dev_cmd_vf_getattr(ionic, vf, attr, &comp);
-	if (err && comp.status != IONIC_RC_ENOSUPP)
-		goto err_out;
-	if (!err)
-		vfdata->trusted = comp.trust;
-
-	attr = IONIC_VF_ATTR_MAC;
-	err = ionic_dev_cmd_vf_getattr(ionic, vf, attr, &comp);
-	if (err && comp.status != IONIC_RC_ENOSUPP)
-		goto err_out;
-	if (!err)
-		ether_addr_copy(vfdata->macaddr, comp.macaddr);
-
-err_out:
-	if (err)
-		dev_err(ionic->dev, "Failed to get %s for VF %d\n",
-			ionic_vf_attr_to_str(attr), vf);
-
-	return err;
-}
-
 static int ionic_get_vf_config(struct net_device *netdev,
 			       int vf, struct ifla_vf_info *ivf)
 {
 	struct ionic_lif *lif = netdev_priv(netdev);
 	struct ionic *ionic = lif->ionic;
-	struct ionic_vf vfdata = { 0 };
 	int ret = 0;
 
 	if (!netif_device_present(netdev))
@@ -2418,18 +2347,16 @@  static int ionic_get_vf_config(struct net_device *netdev,
 	if (vf >= pci_num_vf(ionic->pdev) || !ionic->vfs) {
 		ret = -EINVAL;
 	} else {
-		ivf->vf = vf;
-		ivf->qos = 0;
-
-		ret = ionic_get_fw_vf_config(ionic, vf, &vfdata);
-		if (!ret) {
-			ivf->vlan         = le16_to_cpu(vfdata.vlanid);
-			ivf->spoofchk     = vfdata.spoofchk;
-			ivf->linkstate    = vfdata.linkstate;
-			ivf->max_tx_rate  = le32_to_cpu(vfdata.maxrate);
-			ivf->trusted      = vfdata.trusted;
-			ether_addr_copy(ivf->mac, vfdata.macaddr);
-		}
+		struct ionic_vf *vfdata = &ionic->vfs[vf];
+
+		ivf->vf		  = vf;
+		ivf->qos	  = 0;
+		ivf->vlan         = le16_to_cpu(vfdata->vlanid);
+		ivf->spoofchk     = vfdata->spoofchk;
+		ivf->linkstate    = vfdata->linkstate;
+		ivf->max_tx_rate  = le32_to_cpu(vfdata->maxrate);
+		ivf->trusted      = vfdata->trusted;
+		ether_addr_copy(ivf->mac, vfdata->macaddr);
 	}
 
 	up_read(&ionic->vf_op_lock);
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_main.c b/drivers/net/ethernet/pensando/ionic/ionic_main.c
index 835577392178..8d15f9203bd5 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_main.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_main.c
@@ -188,28 +188,6 @@  static const char *ionic_opcode_to_str(enum ionic_cmd_opcode opcode)
 	}
 }
 
-const char *ionic_vf_attr_to_str(enum ionic_vf_attr attr)
-{
-	switch (attr) {
-	case IONIC_VF_ATTR_SPOOFCHK:
-		return "IONIC_VF_ATTR_SPOOFCHK";
-	case IONIC_VF_ATTR_TRUST:
-		return "IONIC_VF_ATTR_TRUST";
-	case IONIC_VF_ATTR_LINKSTATE:
-		return "IONIC_VF_ATTR_LINKSTATE";
-	case IONIC_VF_ATTR_MAC:
-		return "IONIC_VF_ATTR_MAC";
-	case IONIC_VF_ATTR_VLAN:
-		return "IONIC_VF_ATTR_VLAN";
-	case IONIC_VF_ATTR_RATE:
-		return "IONIC_VF_ATTR_RATE";
-	case IONIC_VF_ATTR_STATSADDR:
-		return "IONIC_VF_ATTR_STATSADDR";
-	default:
-		return "IONIC_VF_ATTR_UNKNOWN";
-	}
-}
-
 static void ionic_adminq_flush(struct ionic_lif *lif)
 {
 	struct ionic_desc_info *desc_info;