From: "Michael Karcher" <michael.karcher@fu-berlin.de>
To: Michael Schmitz <schmitzmic@gmail.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>,
netdev <netdev@vger.kernel.org>, Andrew Lunn <andrew@lunn.ch>,
Finn Thain <fthain@telegraphics.com.au>,
Florian Fainelli <f.fainelli@gmail.com>,
Linux/m68k <linux-m68k@vger.kernel.org>,
Michael Karcher <michael.karcher@fu-berlin.de>,
Michael Karcher <kernel@mkarcher.dialup.fu-berlin.de>
Subject: Re: [PATCH v4 9/9] net-next: New ax88796 platform driver for Amiga X-Surf 100 Zorro board (m68k)
Date: Fri, 8 Jun 2018 11:28:10 +0200 [thread overview]
Message-ID: <56235.87.122.27.167.1528450090.webmail@webmail.zedat.fu-berlin.de> (raw)
In-Reply-To: <643cf1a7-b91c-bda6-d5b0-52b7f84377e6@gmail.com>
Let me add my 2 cents as main author of that code:
Michael Schmitz wrote:
> Am 08.06.2018 um 02:36 schrieb Geert Uytterhoeven:
>> So I was wondering: why is this file included, as XSURF100 selects
>> AX88796,
>> while ax88796.c includes lib8390.c anyway?
>>
>> Apparently lib8390.c is included for register definitions (provided by
>> 8390.h, and can easily be fixed), and for the __NS8390_init()
>> implementation, called below.
>
> Mostly the latter.
>
>>
>>> +static void xs100_block_output(struct net_device *dev, int count,
>>> + const unsigned char *buf, const int
>>> start_page)
>>> +{
>>
>> [...]
>>
>>> + while ((ei_inb(nic_base + EN0_ISR) & ENISR_RDC) == 0) {
>>> + if (jiffies - dma_start > 2 * HZ / 100) { /* 20ms
>>> */
>>> + netdev_warn(dev, "timeout waiting for Tx
>>> RDC.\n");
>>> + ei_local->reset_8390(dev);
>>> + ax_NS8390_init(dev, 1);
>>> + break;
>>> + }
>>> + }
>>> +
>>> + ei_outb(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */
>>> + ei_local->dmaing &= ~0x01;
>>> +}
actually, the the block_input / block_output functions were the reason I
included the lib8390.c file. Except for xs100_write / xs100_read, they are
a verbatim copy from ax88796.c I'm not that enthusiastic about that idea
anymore, but did not get around to improve it. I added a customization
point to ax88796 for a custom block_input / block_output, because the 8390
core already provides that customization point. What I really need is a
customization point just for the 8390-remote-DMA-via-MMIO functions (i.e.
xs100_write, xs100_read) instead of the whole block transfer core that
also sets up the remote DMA engine and tries to re-initialize the card in
case of unexplained problems.
This should get rid of
- xs100_block_output
- xs100_block_input (which has the calls to ax_reset_8390 and
ax_NS8390_init)
- ax_reset_8390
- and thus the include of lib8390.c (which should be included only by
ax88796.c, not by xsurf100.c)
Regards,
Michael Karcher
next prev parent reply other threads:[~2018-06-08 9:28 UTC|newest]
Thread overview: 109+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-16 22:04 [PATCH 00/10] New network driver for Amiga X-Surf 100 (m68k) Michael Schmitz
2018-04-16 22:04 ` [PATCH 01/10] net: ax88796: Fix MAC address reading Michael Schmitz
2018-04-16 22:04 ` [PATCH 02/10] net: ax88796: Attach MII bus only when open Michael Schmitz
2018-04-16 22:59 ` Andrew Lunn
2018-04-16 23:53 ` Michael Schmitz
2018-04-16 22:04 ` [PATCH 03/10] net: ax88796: Do not free IRQ in ax_remove() (already freed in ax_close()) Michael Schmitz
2018-04-17 9:15 ` Sergei Shtylyov
2018-04-16 22:04 ` [PATCH 04/10] net: ax88796: Add block_input/output hooks to ax_plat_data Michael Schmitz
2018-04-17 18:46 ` kbuild test robot
2018-04-18 0:53 ` Michael Schmitz
2018-04-18 1:19 ` Andrew Lunn
2018-04-18 3:39 ` Michael Schmitz
2018-04-18 1:23 ` Finn Thain
2018-04-18 3:46 ` Michael Schmitz
2018-04-16 22:04 ` [PATCH 05/10] net: ax88796: add interrupt status callback to platform data Michael Schmitz
2018-04-16 22:04 ` [PATCH 06/10] net: ax88796: set IRQF_SHARED flag when IRQ resource is marked as shareable Michael Schmitz
2018-04-16 22:04 ` [PATCH 07/10] net: ax88796: unregister mdiobus on ax_mii_init() fail Michael Schmitz
2018-04-16 22:04 ` [PATCH 08/10] net: ax88796: Make reset more robust on AX88796B Michael Schmitz
2018-04-16 23:12 ` Andrew Lunn
2018-04-17 0:14 ` Michael Schmitz
2018-04-17 1:32 ` Andrew Lunn
2018-04-17 5:18 ` Michael Karcher
2018-04-17 13:01 ` Andrew Lunn
2018-04-17 18:08 ` Florian Fainelli
2018-04-17 19:25 ` Michael Schmitz
2018-04-16 22:04 ` [PATCH 09/10] net: ax88796: release platform device drvdata on probe error and module remove Michael Schmitz
2018-04-16 22:04 ` [PATCH 10/10] net: New ax88796 platform driver for Amiga X-Surf 100 Zorro board (m68k) Michael Schmitz
2018-04-17 13:53 ` Geert Uytterhoeven
2018-04-17 22:35 ` Michael Schmitz
2018-04-18 7:54 ` Geert Uytterhoeven
2018-04-18 4:32 ` Michael Schmitz
2018-04-17 2:08 ` [PATCH v2 0/8] New network driver for Amiga X-Surf 100 (m68k) Michael Schmitz
2018-04-18 4:26 ` [PATCH v3 00/10] " Michael Schmitz
2018-04-18 5:10 ` Michael Schmitz
2018-04-18 5:45 ` Finn Thain
2018-04-18 21:26 ` Michael Schmitz
2018-04-18 12:19 ` Andrew Lunn
2018-04-18 21:34 ` Michael Schmitz
2018-04-19 2:05 ` [PATCH v4 " Michael Schmitz
2018-04-19 3:17 ` Michael Schmitz
2018-04-19 20:11 ` David Miller
2018-04-19 21:36 ` Michael Schmitz
2018-04-19 2:05 ` [PATCH v4 1/9] net-next: phy: new Asix Electronics PHY driver Michael Schmitz
2018-04-19 12:21 ` Andrew Lunn
2018-04-19 16:15 ` Florian Fainelli
2019-01-18 10:22 ` [v4,1/9] " Thomas Gleixner
2019-01-20 17:43 ` Andrew Lunn
2019-01-20 22:44 ` Michael Schmitz
2018-04-19 2:05 ` [PATCH v4 2/9] net-next: ax88796: Fix MAC address reading Michael Schmitz
2018-04-19 2:05 ` [PATCH v4 3/9] net-next: ax88796: Attach MII bus only when open Michael Schmitz
2018-04-19 2:05 ` [PATCH v4 4/9] net-next: ax88796: Do not free IRQ in ax_remove() (already freed in ax_close()) Michael Schmitz
2018-04-19 2:05 ` [PATCH v4 5/9] net-next: ax88796: Add block_input/output hooks to ax_plat_data Michael Schmitz
2018-04-19 2:05 ` [PATCH v4 6/9] net-next: ax88796: add interrupt status callback to platform data Michael Schmitz
2018-04-19 2:05 ` [PATCH v4 7/9] net-next: ax88796: set IRQF_SHARED flag when IRQ resource is marked as shareable Michael Schmitz
2018-04-19 2:05 ` [PATCH v4 8/9] net-next: ax88796: release platform device drvdata on probe error and module remove Michael Schmitz
2018-04-19 2:05 ` [PATCH v4 9/9] net-next: New ax88796 platform driver for Amiga X-Surf 100 Zorro board (m68k) Michael Schmitz
2018-06-07 14:36 ` Geert Uytterhoeven
2018-06-08 7:31 ` Michael Schmitz
2018-06-08 9:28 ` Michael Karcher [this message]
2018-06-09 0:28 ` Michael Schmitz
2018-06-09 9:15 ` Michael Karcher
2018-06-09 20:09 ` Michael Schmitz
2018-06-09 5:57 ` [RFC PATCH 0/2] net-next: cleanup use of lib8390.c code in xsurf100.c Michael Schmitz
2018-06-09 5:57 ` [RFC PATCH 1/2] net-next: ax88796: export ax_NS8390_init() hook Michael Schmitz
2018-06-09 14:31 ` Geert Uytterhoeven
2018-06-09 5:57 ` [RFC PATCH 2/2] net-next: xsurf100: drop include of lib8390.c Michael Schmitz
2018-06-09 14:33 ` Geert Uytterhoeven
2018-06-09 19:00 ` Michael Schmitz
2018-06-10 4:22 ` [PATCH 0/2] net-next: cleanup use of lib8390.c code in xsurf100.c Michael Schmitz
2018-06-10 4:22 ` [PATCH 1/2] net-next: ax88796: export ax_NS8390_init() hook Michael Schmitz
2018-06-10 9:34 ` Geert Uytterhoeven
2018-06-10 4:22 ` [PATCH 2/2] net-next: xsurf100: drop include of lib8390.c Michael Schmitz
2018-06-10 9:34 ` Geert Uytterhoeven
2021-05-16 9:52 ` Arnd Bergmann
2021-05-18 8:42 ` Michael Schmitz
2021-05-18 13:56 ` Arnd Bergmann
2021-05-18 20:33 ` Michael Schmitz
2018-04-18 4:26 ` [PATCH v3 1/9] net: phy: new Asix Electronics PHY driver Michael Schmitz
2018-04-18 7:04 ` John Paul Adrian Glaubitz
2018-04-18 12:13 ` Andrew Lunn
2018-04-18 22:26 ` Michael Schmitz
2018-04-18 4:26 ` [PATCH v3 2/9] net: ax88796: Fix MAC address reading Michael Schmitz
2018-04-18 4:26 ` [PATCH v3 3/9] net: ax88796: Attach MII bus only when open Michael Schmitz
2018-04-18 4:26 ` [PATCH v3 4/9] net: ax88796: Do not free IRQ in ax_remove() (already freed in ax_close()) Michael Schmitz
2018-04-18 4:26 ` [PATCH v3 5/9] net: ax88796: Add block_input/output hooks to ax_plat_data Michael Schmitz
2018-04-18 4:26 ` [PATCH v3 6/9] net: ax88796: add interrupt status callback to platform data Michael Schmitz
2018-04-18 4:26 ` [PATCH v3 7/9] net: ax88796: set IRQF_SHARED flag when IRQ resource is marked as shareable Michael Schmitz
2018-04-18 4:26 ` [PATCH v3 8/9] net: ax88796: release platform device drvdata on probe error and module remove Michael Schmitz
2018-04-18 4:26 ` [PATCH v3 9/9] net: New ax88796 platform driver for Amiga X-Surf 100 Zorro board (m68k) Michael Schmitz
2018-04-17 2:08 ` [PATCH v2 1/8] net: ax88796: Fix MAC address reading Michael Schmitz
2018-04-17 2:08 ` [PATCH v2 2/8] net: ax88796: Attach MII bus only when open Michael Schmitz
2018-04-17 13:19 ` Andrew Lunn
2018-04-17 2:08 ` [PATCH v2 3/8] net: ax88796: Do not free IRQ in ax_remove() (already freed in ax_close()) Michael Schmitz
2018-04-17 8:20 ` Geert Uytterhoeven
2018-04-17 13:51 ` David Miller
2018-04-17 20:36 ` Michael Schmitz
2018-04-17 11:40 ` John Paul Adrian Glaubitz
2018-04-17 20:32 ` Michael Schmitz
2018-04-17 20:42 ` John Paul Adrian Glaubitz
2018-04-17 21:13 ` Andrew Lunn
2018-04-17 21:53 ` Michael Schmitz
2018-04-17 2:08 ` [PATCH v2 4/8] net: ax88796: Add block_input/output hooks to ax_plat_data Michael Schmitz
2018-04-17 2:08 ` [PATCH v2 5/8] net: ax88796: add interrupt status callback to platform data Michael Schmitz
2018-04-17 2:08 ` [PATCH v2 6/8] net: ax88796: set IRQF_SHARED flag when IRQ resource is marked as shareable Michael Schmitz
2018-04-17 11:40 ` John Paul Adrian Glaubitz
2018-04-17 2:08 ` [PATCH v2 7/8] net: ax88796: release platform device drvdata on probe error and module remove Michael Schmitz
2018-04-17 2:08 ` [PATCH v2 8/8] net: New ax88796 platform driver for Amiga X-Surf 100 Zorro board (m68k) Michael Schmitz
2018-04-17 13:26 ` Andrew Lunn
2018-04-17 23:00 ` Michael Schmitz
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