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Git mirror commit fb63610a69b0eb7f69a201ba05c4c1a7a2739cf9.
Update #3472.
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The issue is this:
static int dpaa_eth_macless_probe(struct platform_device *_of_dev)
{
[...]
INIT_LIST_HEAD(&priv->dpa_fq_list);
err = dpa_fq_probe_macless(dev, &priv->dpa_fq_list, RX);
if (!err)
err = dpa_fq_probe_macless(dev, &priv->dpa_fq_list,
TX);
if (err < 0)
goto fq_probe_failed;
[...]
/* Add the FQs to the interface, and make them active */
/* For MAC-less devices we only get here for RX frame queues
* initialization, which are the TX queues of the other
* partition.
* It is safe to rely on one partition to set the FQ taildrop
* threshold for the TX queues of the other partition
* because the ERN notifications will be received by the
* partition doing qman_enqueue.
*/
err = dpa_fqs_init(dev, &priv->dpa_fq_list, true);
if (err < 0)
goto fq_alloc_failed;
[...]
The priv->dpa_fq_list contains a list of FQ_TYPE_RX_PCD and FQ_TYPE_TX
items. I don't understand what the "For MAC-less devices we only get
here for RX frame queues initialization" means in this context. The
td_enable == true in dpa_fqs_init(). So, we have:
int dpa_fq_init(struct dpa_fq *dpa_fq, bool td_enable)
{
[...]
if (dpa_fq->fq_type == FQ_TYPE_TX ||
dpa_fq->fq_type == FQ_TYPE_TX_CONFIRM ||
dpa_fq->fq_type == FQ_TYPE_TX_CONF_MQ) {
[...]
initfq.we_mask |= QM_INITFQ_WE_OAC;
[...]
}
if (td_enable) {
initfq.we_mask |= QM_INITFQ_WE_TDTHRESH;
qm_fqd_taildrop_set(&initfq.fqd.td,
DPA_FQ_TD, 1);
initfq.fqd.fq_ctrl = QM_FQCTRL_TDE;
}
The td_enable == true && dpa_fq->fq_type == FQ_TYPE_TX causes later:
int qman_init_fq(struct qman_fq *fq, u32 flags, struct qm_mcc_initfq *opts)
{
[...]
if (opts && (opts->we_mask & QM_INITFQ_WE_OAC)) {
/* And can't be set at the same time as TDTHRESH */
if (opts->we_mask & QM_INITFQ_WE_TDTHRESH)
return -EINVAL;
}
This aborts the initialization of the MAC-less driver. I don't
understand why this path doesn't happen on the SDK Linux system.
Update #3277.
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Update #3277.
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http://git.freescale.com/git/cgit.cgi/ppc/sdk/linux.git
Commit 1ae843c08261402b2c35d83422e4fa1e313611f4 (fsl-sdk-v2.0-1703).
Update #3277.
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Update #3277.
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Update #3277.
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Update #3277.
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Translate address in of_address_to_resource().
Update #3277.
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Seed the receive buffers of each affine software portal only with 8
mclusters (16KiB) and not 128 (256KiB). We have processor count affine
software portals, see dpaa_bp_seed().
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By default, the network interfaces use a pool channel, see
dpaa_get_channel() in dpaa_eth_priv_probe(). To enable a dedicated QMan
software portal, use libbsd,dedicated-portal = "enabled";. This option
is useful for special purpose 10Gbit/s Ethernet processing.
/ {
soc: soc@ffe000000 {
fman0: fman@400000 {
enet7: ethernet@f2000 {
libbsd,dedicated-portal = "enabled";
};
};
};
};
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Linux baseline 6f7da290413ba713f0cdd9ff1a2a9bb129ef4f6c (v4.12).
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Linux baseline b23afd384801711ab6dbccd259cc14cb09a1dcaf.
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Linux baseline a71c9a1c779f2499fb2afc0553e543f18aff6edf (4.11-rc5).
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Imported from Freescale Linux repository
git://git.freescale.com/ppc/upstream/linux.git
commit 2774c204cd8bfc56a200ff4dcdfc9cdf5b6fc161.
Linux compatibility layer is partly from FreeBSD.
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