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realtek: Fix RTL839x TX CPU-Tag

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Setting bits 20 and 23 in a u16 is obviously wrong.
According to https://www.svanheule.net/realtek/cypress/cputag
cpu_tag[2] starts at bit 48 in the cpu-tag structure, so
bit 43 is bit 5 in cpu_tag[2] and bit 40 is bit 8 in
cpu_tag[2].

Signed-off-by: Birger Koblitz <git@birger-koblitz.de>
This commit is contained in:
Birger Koblitz 2021-12-31 18:39:22 +01:00 committed by Daniel Golle
parent b3287a2165
commit 2f51e567ff
1 changed files with 2 additions and 2 deletions
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4
target/linux/realtek/files-5.10/drivers/net/ethernet/rtl838x_eth.c
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@ -126,8 +126,8 @@ static void rtl839x_create_tx_header(struct p_hdr *h, int dest_port, int prio)
h->cpu_tag[4] = BIT(dest_port) >> 16;
h->cpu_tag[5] = BIT(dest_port) & 0xffff;
}
h->cpu_tag[2] |= BIT(20); // Enable destination port mask use
h->cpu_tag[2] |= BIT(23); // Enable L2 Learning
h->cpu_tag[2] |= BIT(5); // Enable destination port mask use
h->cpu_tag[2] |= BIT(8); // Enable L2 Learning
// Set internal priority and AS_PRIO
if (prio >= 0)
h->cpu_tag[1] |= prio | BIT(3);