netdev - Re: [RFC next-next v2 1/5] net: marvell: prestera: Add driver for Prestera family ASIC devices

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Message-ID: <20200512150210.GO2245@nanopsycho>
Date:   Tue, 12 May 2020 17:02:10 +0200
From:   Jiri Pirko <jiri@...nulli.us>
To:     Vadym Kochan <vadym.kochan@...ision.eu>
Cc:     netdev@...r.kernel.org, "David S. Miller" <davem@...emloft.net>,
        Oleksandr Mazur <oleksandr.mazur@...ision.eu>,
        Serhiy Boiko <serhiy.boiko@...ision.eu>,
        Serhiy Pshyk <serhiy.pshyk@...ision.eu>,
        Volodymyr Mytnyk <volodymyr.mytnyk@...ision.eu>,
        Taras Chornyi <taras.chornyi@...ision.eu>,
        Andrii Savka <andrii.savka@...ision.eu>,
        Jiri Pirko <jiri@...lanox.com>,
        Ido Schimmel <idosch@...lanox.com>,
        Andrew Lunn <andrew@...n.ch>,
        Chris Packham <Chris.Packham@...iedtelesis.co.nz>
Subject: Re: [RFC next-next v2 1/5] net: marvell: prestera: Add driver for
 Prestera family ASIC devices

Tue, May 12, 2020 at 04:50:37PM CEST, vadym.kochan@...ision.eu wrote:
>On Mon, May 11, 2020 at 02:57:23PM +0200, Jiri Pirko wrote:
>> [...]
>> 
>
>> >+netdev_tx_t prestera_rxtx_xmit(struct prestera_port *port, struct sk_buff *skb)
>> 
>> Why this has "rx" in the name??
>This is just a following of a module prefix which is prestera_rxtx_,
>do you think it is better to avoid using of "rx" in "xmit" func ?)

Ah, I see. I think it is okay as it is.

Thanks!

>
>> 
>> 
>> >+{
>> >+	struct prestera_dsa dsa;
>> >+
>> >+	dsa.hw_dev_num = port->dev_id;
>> >+	dsa.port_num = port->hw_id;
>> >+
>> >+	if (skb_cow_head(skb, PRESTERA_DSA_HLEN) < 0)
>> >+		return NET_XMIT_DROP;
>> >+
>> >+	skb_push(skb, PRESTERA_DSA_HLEN);
>> >+	memmove(skb->data, skb->data + PRESTERA_DSA_HLEN, 2 * ETH_ALEN);
>> >+
>> >+	if (prestera_dsa_build(&dsa, skb->data + 2 * ETH_ALEN) != 0)
>> >+		return NET_XMIT_DROP;
>> >+
>> >+	return prestera_sdma_xmit(&port->sw->rxtx->sdma, skb);
>> >+}
>> >diff --git a/drivers/net/ethernet/marvell/prestera/prestera_rxtx.h b/drivers/net/ethernet/marvell/prestera/prestera_rxtx.h
>> >new file mode 100644
>> >index 000000000000..bbbadfa5accf
>> >--- /dev/null
>> >+++ b/drivers/net/ethernet/marvell/prestera/prestera_rxtx.h
>> >@@ -0,0 +1,21 @@
>> >+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
>> >+ *
>> >+ * Copyright (c) 2019-2020 Marvell International Ltd. All rights reserved.
>> >+ *
>> >+ */
>> >+
>> >+#ifndef _PRESTERA_RXTX_H_
>> >+#define _PRESTERA_RXTX_H_
>> >+
>> >+#include <linux/netdevice.h>
>> >+
>> >+#include "prestera.h"
>> >+
>> >+int prestera_rxtx_switch_init(struct prestera_switch *sw);
>> >+void prestera_rxtx_switch_fini(struct prestera_switch *sw);
>> >+
>> >+int prestera_rxtx_port_init(struct prestera_port *port);
>> >+
>> >+netdev_tx_t prestera_rxtx_xmit(struct prestera_port *port, struct sk_buff *skb);
>> >+
>> >+#endif /* _PRESTERA_RXTX_H_ */
>> >-- 
>> >2.17.1
>> >