#ifndef _ALPHA_PGALLOC_H
#define _ALPHA_PGALLOC_H

#include <linux/config.h>
#include <linux/mm.h>
#include <linux/mmzone.h>

/*      
 * Allocate and free page tables. The xxx_kernel() versions are
 * used to allocate a kernel page table - this turns on ASN bits
 * if any.
 */

static inline void
pmd_populate(struct mm_struct *mm, pmd_t *pmd, struct page *pte)
{
	pmd_set(pmd, (pte_t *)(page_to_pa(pte) + PAGE_OFFSET));
}

static inline void
pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte)
{
	pmd_set(pmd, pte);
}

static inline void
pgd_populate(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
{
	pgd_set(pgd, pmd);
}

extern pgd_t *pgd_alloc(struct mm_struct *mm);

static inline void
pgd_free(pgd_t *pgd)
{
	free_page((unsigned long)pgd);
}

static inline pmd_t *
pmd_alloc_one(struct mm_struct *mm, unsigned long address)
{
	pmd_t *ret = (pmd_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO);
	return ret;
}

static inline void
pmd_free(pmd_t *pmd)
{
	free_page((unsigned long)pmd);
}

extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr);

static inline void
pte_free_kernel(pte_t *pte)
{
	free_page((unsigned long)pte);
}

static inline struct page *
pte_alloc_one(struct mm_struct *mm, unsigned long addr)
{
	pte_t *pte = pte_alloc_one_kernel(mm, addr);
	if (pte)
		return virt_to_page(pte);
	return NULL;
}

static inline void
pte_free(struct page *page)
{
	__free_page(page);
}

#define check_pgt_cache()	do { } while (0)

#endif /* _ALPHA_PGALLOC_H */
ned-off-by: Maxime Chevallier &lt;maxime.chevallier@bootlin.com&gt;
Reviewed-by: Simon Horman &lt;simon.horman@corigine.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</content>
</entry>
<entry>
<title>net: dsa: seville: ignore mscc-miim read errors from Lynx PCS</title>
<updated>2023-02-26T18:31:37Z</updated>
<author>
<name>Vladimir Oltean</name>
<email>vladimir.oltean@nxp.com</email>
</author>
<published>2023-02-24T15:52:33Z</published>
<link rel='alternate' type='text/html' href='https://universe.0xinfinity.dev/distro/kernel/commit/?id=0322ef49c1ac6f0e2ef37b146c0bf8440873072c'/>
<id>urn:sha1:0322ef49c1ac6f0e2ef37b146c0bf8440873072c</id>
<content type='text'>
During the refactoring in the commit below, vsc9953_mdio_read() was
replaced with mscc_miim_read(), which has one extra step: it checks for
the MSCC_MIIM_DATA_ERROR bits before returning the result.

On T1040RDB, there are 8 QSGMII PCSes belonging to the switch, and they
are organized in 2 groups. First group responds to MDIO addresses 4-7
because QSGMIIACR1[MDEV_PORT] is 1, and the second group responds to
MDIO addresses 8-11 because QSGMIIBCR1[MDEV_PORT] is 2. I have double
checked that these values are correctly set in the SERDES, as well as
PCCR1[QSGMA_CFG] and PCCR1[QSGMB_CFG] are both 0b01.

mscc_miim_read: phyad 8 reg 0x1 MIIM_DATA 0x2d
mscc_miim_read: phyad 8 reg 0x5 MIIM_DATA 0x5801
mscc_miim_read: phyad 8 reg 0x1 MIIM_DATA 0x2d
mscc_miim_read: phyad 8 reg 0x5 MIIM_DATA 0x5801
mscc_miim_read: phyad 9 reg 0x1 MIIM_DATA 0x2d
mscc_miim_read: phyad 9 reg 0x5 MIIM_DATA 0x5801
mscc_miim_read: phyad 9 reg 0x1 MIIM_DATA 0x2d
mscc_miim_read: phyad 9 reg 0x5 MIIM_DATA 0x5801
mscc_miim_read: phyad 10 reg 0x1 MIIM_DATA 0x2d
mscc_miim_read: phyad 10 reg 0x5 MIIM_DATA 0x5801
mscc_miim_read: phyad 10 reg 0x1 MIIM_DATA 0x2d
mscc_miim_read: phyad 10 reg 0x5 MIIM_DATA 0x5801
mscc_miim_read: phyad 11 reg 0x1 MIIM_DATA 0x2d
mscc_miim_read: phyad 11 reg 0x5 MIIM_DATA 0x5801
mscc_miim_read: phyad 11 reg 0x1 MIIM_DATA 0x2d
mscc_miim_read: phyad 11 reg 0x5 MIIM_DATA 0x5801
mscc_miim_read: phyad 4 reg 0x1 MIIM_DATA 0x3002d, ERROR
mscc_miim_read: phyad 4 reg 0x5 MIIM_DATA 0x3da01, ERROR
mscc_miim_read: phyad 5 reg 0x1 MIIM_DATA 0x3002d, ERROR
mscc_miim_read: phyad 5 reg 0x5 MIIM_DATA 0x35801, ERROR
mscc_miim_read: phyad 5 reg 0x1 MIIM_DATA 0x3002d, ERROR
mscc_miim_read: phyad 5 reg 0x5 MIIM_DATA 0x35801, ERROR
mscc_miim_read: phyad 6 reg 0x1 MIIM_DATA 0x3002d, ERROR
mscc_miim_read: phyad 6 reg 0x5 MIIM_DATA 0x35801, ERROR
mscc_miim_read: phyad 6 reg 0x1 MIIM_DATA 0x3002d, ERROR
mscc_miim_read: phyad 6 reg 0x5 MIIM_DATA 0x35801, ERROR
mscc_miim_read: phyad 7 reg 0x1 MIIM_DATA 0x3002d, ERROR
mscc_miim_read: phyad 7 reg 0x5 MIIM_DATA 0x35801, ERROR
mscc_miim_read: phyad 7 reg 0x1 MIIM_DATA 0x3002d, ERROR
mscc_miim_read: phyad 7 reg 0x5 MIIM_DATA 0x35801, ERROR

As can be seen, the data in MIIM_DATA is still valid despite having the
MSCC_MIIM_DATA_ERROR bits set. The driver as introduced in commit
84705fc16552 ("net: dsa: felix: introduce support for Seville VSC9953
switch") was ignoring these bits, perhaps deliberately (although
unbeknownst to me).

This is an old IP and the hardware team cannot seem to be able to help
me track down a plausible reason for these failures. I'll keep
investigating, but in the meantime, this is a direct regression which
must be restored to a working state.

The only thing I can do is keep ignoring the errors as before.

Fixes: b99658452355 ("net: dsa: ocelot: felix: utilize shared mscc-miim driver for indirect MDIO access")
Signed-off-by: Vladimir Oltean &lt;vladimir.oltean@nxp.com&gt;
Reviewed-by: Florian Fainelli &lt;f.fainelli@gmail.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</content>
</entry>
<entry>
<title>net: phy: mdio-i2c: support I2C MDIO protocol for RollBall SFP modules</title>
<updated>2022-10-03T10:08:33Z</updated>
<author>
<name>Marek Behún</name>
<email>kabel@kernel.org</email>
</author>
<published>2022-09-30T14:21:09Z</published>
<link rel='alternate' type='text/html' href='https://universe.0xinfinity.dev/distro/kernel/commit/?id=09bbedac72d5a9267088c15d1a71c8c3a8fb47e7'/>
<id>urn:sha1:09bbedac72d5a9267088c15d1a71c8c3a8fb47e7</id>
<content type='text'>
Some multigig SFPs from RollBall and Hilink do not expose functional
MDIO access to the internal PHY of the SFP via I2C address 0x56
(although there seems to be read-only clause 22 access on this address).

Instead these SFPs PHY can be accessed via I2C via the SFP Enhanced
Digital Diagnostic Interface - I2C address 0x51. The SFP_PAGE has to be
selected to 3 and the password must be filled with 0xff bytes for this
PHY communication to work.

This extends the mdio-i2c driver to support this protocol by adding a
special parameter to mdio_i2c_alloc function via which this RollBall
protocol can be selected.

Signed-off-by: Marek Behún &lt;kabel@kernel.org&gt;
Cc: Andrew Lunn &lt;andrew@lunn.ch&gt;
Cc: Russell King &lt;rmk+kernel@armlinux.org.uk&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</content>
</entry>
<entry>
<title>net: sfp: create/destroy I2C mdiobus before PHY probe/after PHY release</title>
<updated>2022-10-03T10:08:33Z</updated>
<author>
<name>Marek Behún</name>
<email>kabel@kernel.org</email>
</author>
<published>2022-09-30T14:21:08Z</published>
<link rel='alternate' type='text/html' href='https://universe.0xinfinity.dev/distro/kernel/commit/?id=e85b1347ace677c3822c12d9332dfaaffe594da6'/>
<id>urn:sha1:e85b1347ace677c3822c12d9332dfaaffe594da6</id>
<content type='text'>
Instead of configuring the I2C mdiobus when SFP driver is probed,
create/destroy the mdiobus before the PHY is probed for/after it is
released.

This way we can tell the mdio-i2c code which protocol to use for each
SFP transceiver.

Move the code that determines MDIO I2C protocol from
sfp_sm_probe_for_phy() to sfp_sm_mod_probe(), where most of the SFP ID
parsing is done. Don't allocate I2C bus if no PHY is expected.

Signed-off-by: Marek Behún &lt;kabel@kernel.org&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</content>
</entry>
<entry>
<title>add missing includes and forward declarations to networking includes under linux/</title>
<updated>2022-07-28T09:29:36Z</updated>
<author>
<name>Jakub Kicinski</name>
<email>kuba@kernel.org</email>
</author>
<published>2022-07-26T21:56:52Z</published>
<link rel='alternate' type='text/html' href='https://universe.0xinfinity.dev/distro/kernel/commit/?id=5f10376b6bc1e2773f56977980ab08c9e4fa91a7'/>
<id>urn:sha1:5f10376b6bc1e2773f56977980ab08c9e4fa91a7</id>
<content type='text'>
Similarly to a recent include/net/ cleanup, this patch adds
missing includes to networking headers under include/linux.
All these problems are currently masked by the existing users
including the missing dependency before the broken header.

Link: https://lore.kernel.org/all/20220723045755.2676857-1-kuba@kernel.org/ v1
Signed-off-by: Jakub Kicinski &lt;kuba@kernel.org&gt;
Link: https://lore.kernel.org/r/20220726215652.158167-1-kuba@kernel.org
Signed-off-by: Paolo Abeni &lt;pabeni@redhat.com&gt;
</content>
</entry>
<entry>
<title>net: dsa: ocelot: felix: utilize shared mscc-miim driver for indirect MDIO access</title>
<updated>2021-11-29T13:02:00Z</updated>
<author>
<name>Colin Foster</name>
<email>colin.foster@in-advantage.com</email>
</author>
<published>2021-11-29T01:57:37Z</published>
<link rel='alternate' type='text/html' href='https://universe.0xinfinity.dev/distro/kernel/commit/?id=b99658452355d316debee11079e8f1c6c1029355'/>
<id>urn:sha1:b99658452355d316debee11079e8f1c6c1029355</id>
<content type='text'>
Switch to a shared MDIO access implementation by way of the mdio-mscc-miim
driver.

Signed-off-by: Colin Foster &lt;colin.foster@in-advantage.com&gt;
Tested-by: Vladimir Oltean &lt;vladimir.oltean@nxp.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</content>
</entry>
<entry>
<title>net: xgene: Move shared header file into include/linux</title>
<updated>2020-08-27T13:55:50Z</updated>
<author>
<name>Andrew Lunn</name>
<email>andrew@lunn.ch</email>
</author>
<published>2020-08-27T02:00:30Z</published>
<link rel='alternate' type='text/html' href='https://universe.0xinfinity.dev/distro/kernel/commit/?id=232e15e1d7ddb191c28248cb681f4544c0ff1c54'/>
<id>urn:sha1:232e15e1d7ddb191c28248cb681f4544c0ff1c54</id>
<content type='text'>
This header file is currently included into the ethernet driver via a
relative path into the PHY subsystem. This is bad practice, and causes
issues for the upcoming move of the MDIO driver. Move the header file
into include/linux to clean this up.

v2:
Move header to include/linux/mdio

Reviewed-by: Florian Fainelli &lt;f.fainelli@gmail.com&gt;
Signed-off-by: Andrew Lunn &lt;andrew@lunn.ch&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</content>
</entry>
<entry>
<title>net/phy/mdio-i2c: Move header file to include/linux/mdio</title>
<updated>2020-08-27T13:55:50Z</updated>
<author>
<name>Andrew Lunn</name>
<email>andrew@lunn.ch</email>
</author>
<published>2020-08-27T02:00:29Z</published>
<link rel='alternate' type='text/html' href='https://universe.0xinfinity.dev/distro/kernel/commit/?id=fcba68bd75bb1d42b3aec7f471d382a9e639a672'/>
<id>urn:sha1:fcba68bd75bb1d42b3aec7f471d382a9e639a672</id>
<content type='text'>
In preparation for moving all MDIO drivers into drivers/net/mdio, move
the mdio-i2c header file into include/linux/mdio so it can be used by
both the MDIO driver and the SFP code which instantiates I2C MDIO
busses.

v2:
Add include/linux/mdio

Reviewed-by: Florian Fainelli &lt;f.fainelli@gmail.com&gt;
Signed-off-by: Andrew Lunn &lt;andrew@lunn.ch&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</content>
</entry>