@@ -222,8 +222,11 @@ EXPORT_SYMBOL(otx2_set_mac_address);
int otx2_hw_set_mtu(struct otx2_nic *pfvf, int mtu)
{
struct nix_frs_cfg *req;
+ u16 maxlen;
int err;
+ maxlen = otx2_get_max_mtu(pfvf) + OTX2_ETH_HLEN + OTX2_HW_TIMESTAMP_LEN;
+
mutex_lock(&pfvf->mbox.lock);
req = otx2_mbox_alloc_msg_nix_set_hw_frs(&pfvf->mbox);
if (!req) {
@@ -233,6 +236,9 @@ int otx2_hw_set_mtu(struct otx2_nic *pfvf, int mtu)
req->maxlen = pfvf->netdev->mtu + OTX2_ETH_HLEN + OTX2_HW_TIMESTAMP_LEN;
+ if (is_otx2_lbkvf(pfvf->pdev))
+ req->maxlen = maxlen;
+
err = otx2_sync_mbox_msg(&pfvf->mbox);
mutex_unlock(&pfvf->mbox.lock);
return err;
@@ -1036,7 +1042,7 @@ int otx2_config_nix(struct otx2_nic *pfvf)
struct nix_lf_alloc_rsp *rsp;
int err;
- pfvf->qset.xqe_size = NIX_XQESZ_W16 ? 128 : 512;
+ pfvf->qset.xqe_size = pfvf->hw.xqe_size;
/* Get memory to put this msg */
nixlf = otx2_mbox_alloc_msg_nix_lf_alloc(&pfvf->mbox);
@@ -1049,7 +1055,7 @@ int otx2_config_nix(struct otx2_nic *pfvf)
nixlf->cq_cnt = pfvf->qset.cq_cnt;
nixlf->rss_sz = MAX_RSS_INDIR_TBL_SIZE;
nixlf->rss_grps = MAX_RSS_GROUPS;
- nixlf->xqe_sz = NIX_XQESZ_W16;
+ nixlf->xqe_sz = pfvf->hw.xqe_size == 128 ? NIX_XQESZ_W16 : NIX_XQESZ_W64;
/* We don't know absolute NPA LF idx attached.
* AF will replace 'RVU_DEFAULT_PF_FUNC' with
* NPA LF attached to this RVU PF/VF.
@@ -177,6 +177,7 @@ struct otx2_hw {
u16 pool_cnt;
u16 rqpool_cnt;
u16 sqpool_cnt;
+ u16 xqe_size;
/* NPA */
u32 stack_pg_ptrs; /* No of ptrs per stack page */
@@ -64,9 +64,60 @@ static int otx2_dl_mcam_count_get(struct devlink *devlink, u32 id,
return 0;
}
+static int otx2_dl_cqe_size_validate(struct devlink *devlink, u32 id,
+ union devlink_param_value val,
+ struct netlink_ext_ack *extack)
+{
+ if (val.vu16 != 128 && val.vu16 != 512) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Only 128 or 512 byte descriptor allowed");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int otx2_dl_cqe_size_set(struct devlink *devlink, u32 id,
+ struct devlink_param_gset_ctx *ctx)
+{
+ struct otx2_devlink *otx2_dl = devlink_priv(devlink);
+ struct otx2_nic *pfvf = otx2_dl->pfvf;
+ struct net_device *netdev;
+ int err = 0;
+ bool if_up;
+
+ rtnl_lock();
+
+ netdev = pfvf->netdev;
+ if_up = netif_running(netdev);
+ if (if_up)
+ netdev->netdev_ops->ndo_stop(netdev);
+
+ pfvf->hw.xqe_size = ctx->val.vu16;
+
+ if (if_up)
+ err = netdev->netdev_ops->ndo_open(netdev);
+
+ rtnl_unlock();
+
+ return err;
+}
+
+static int otx2_dl_cqe_size_get(struct devlink *devlink, u32 id,
+ struct devlink_param_gset_ctx *ctx)
+{
+ struct otx2_devlink *otx2_dl = devlink_priv(devlink);
+ struct otx2_nic *pfvf = otx2_dl->pfvf;
+
+ ctx->val.vu16 = pfvf->hw.xqe_size;
+
+ return 0;
+}
+
enum otx2_dl_param_id {
OTX2_DEVLINK_PARAM_ID_BASE = DEVLINK_PARAM_GENERIC_ID_MAX,
OTX2_DEVLINK_PARAM_ID_MCAM_COUNT,
+ OTX2_DEVLINK_PARAM_ID_CQE_SIZE,
};
static const struct devlink_param otx2_dl_params[] = {
@@ -75,6 +126,11 @@ static const struct devlink_param otx2_dl_params[] = {
BIT(DEVLINK_PARAM_CMODE_RUNTIME),
otx2_dl_mcam_count_get, otx2_dl_mcam_count_set,
otx2_dl_mcam_count_validate),
+ DEVLINK_PARAM_DRIVER(OTX2_DEVLINK_PARAM_ID_CQE_SIZE,
+ "completion_descriptor_size", DEVLINK_PARAM_TYPE_U16,
+ BIT(DEVLINK_PARAM_CMODE_RUNTIME),
+ otx2_dl_cqe_size_get, otx2_dl_cqe_size_set,
+ otx2_dl_cqe_size_validate),
};
/* Devlink OPs */
@@ -2624,6 +2624,8 @@ static int otx2_probe(struct pci_dev *pdev, const struct pci_device_id *id)
hw->tx_queues = qcount;
hw->tot_tx_queues = qcount;
hw->max_queues = qcount;
+ /* Use CQE of 128 byte descriptor size by default */
+ hw->xqe_size = 128;
num_vec = pci_msix_vec_count(pdev);
hw->irq_name = devm_kmalloc_array(&hw->pdev->dev, num_vec, NAME_SIZE,
@@ -587,6 +587,8 @@ static int otx2vf_probe(struct pci_dev *pdev, const struct pci_device_id *id)
hw->tx_queues = qcount;
hw->max_queues = qcount;
hw->tot_tx_queues = qcount;
+ /* Use CQE of 128 byte descriptor size by default */
+ hw->xqe_size = 128;
hw->irq_name = devm_kmalloc_array(&hw->pdev->dev, num_vec, NAME_SIZE,
GFP_KERNEL);