MIPS: Octeon: Configure minimum PKO packet sizes on CN68XX

CN68XX has common minimum packet size filters that need to be configured
for the traffic to work. Just set them to a default value.

Signed-off-by: Janne Huttunen <janne.huttunen@nokia.com>
Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com>
Acked-by: David Daney <david.daney@cavium.com>
Cc: David Daney <ddaney.cavm@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: Janne Huttunen <janne.huttunen@nokia.com>
Cc: Aaro Koskinen <aaro.koskinen@nokia.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: devel@driverdev.osuosl.org
Patchwork: https://patchwork.linux-mips.org/patch/10963/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --git a/arch/mips/cavium-octeon/executive/cvmx-helper.c b/arch/mips/cavium-octeon/executive/cvmx-helper.c
index ed4816c283f07652bcb7ead1a7b05a98b75a4644..376701f41cc28eb6a78f227836b105af843a794b 100644 (file)
--- a/arch/mips/cavium-octeon/executive/cvmx-helper.c
+++ b/arch/mips/cavium-octeon/executive/cvmx-helper.c
@@ -658,6 +658,21 @@ static int __cvmx_helper_global_setup_pko(void)
        fau_to.s.tout_val = 0xfff;
        fau_to.s.tout_enb = 0;
        cvmx_write_csr(CVMX_IOB_FAU_TIMEOUT, fau_to.u64);
+
+       if (OCTEON_IS_MODEL(OCTEON_CN68XX)) {
+               union cvmx_pko_reg_min_pkt min_pkt;
+
+               min_pkt.u64 = 0;
+               min_pkt.s.size1 = 59;
+               min_pkt.s.size2 = 59;
+               min_pkt.s.size3 = 59;
+               min_pkt.s.size4 = 59;
+               min_pkt.s.size5 = 59;
+               min_pkt.s.size6 = 59;
+               min_pkt.s.size7 = 59;
+               cvmx_write_csr(CVMX_PKO_REG_MIN_PKT, min_pkt.u64);
+       }
+
        return 0;
 }