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osi: core: increase delay for 25G

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Issue:
data transfers on 25G interface is not working

Fix
This seems a regression caused by the change 1e8dfaf where
updated retry_delay for 25G is not being used. Later this
part of code is being removed to fix QNX SDP7.1 compiler error
with the change 248fb63. In short existing delay of 1usec is
not sufficient for25G, so increase the same to support 25G

Bug 5015243

Signed-off-by: Narayan Reddy <narayanr@nvidia.com>
Change-Id: I5892b428add6435130af94a4b2560dd3df73107c
Reviewed-on: https://git-master.nvidia.com/r/c/kernel/nvethernetrm/+/3307461
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: Mahesh Patil <maheshp@nvidia.com>
Reviewed-by: Srinivas Ramachandran <srinivasra@nvidia.com>
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
Reviewed-by: Bhadram Varka <vbhadram@nvidia.com>
This commit is contained in:
Narayan Reddy
2025-02-21 06:56:02 +00:00
committed by mobile promotions
parent 144d7dc226
commit 57ebd08cbc
1 changed files with 12 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
osi/core/xpcs.c
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@@ -417,6 +417,7 @@ static nve32_t xpcs_uphy_lane_bring_up(struct osi_core_priv_data *osi_core,
nveu32_t count;
nve32_t ret = 0;
nveu32_t once = 0;
nveu64_t retry_delay = OSI_DELAY_1US;
const nveu32_t uphy_status_reg[OSI_MAX_MAC_IP_TYPES] = {
EQOS_XPCS_WRAP_UPHY_STATUS,
XPCS_WRAP_UPHY_STATUS,
@@ -430,6 +431,15 @@ static nve32_t xpcs_uphy_lane_bring_up(struct osi_core_priv_data *osi_core,
if ((osi_core->mac == OSI_MAC_HW_MGBE_T26X) || (osi_core->mac_ver == OSI_EQOS_MAC_5_40)) {
retry = 1000U;
if (osi_core->uphy_gbe_mode == OSI_GBE_MODE_25G) {
/* Delay added as per HW team suggestion which is
* of 100msec if equalizer is enabled for every
* iteration of a lane bring sequence. So 100 * 1000
* gives us a delay of 100msec for each retry of lane
* bringup
*/
retry_delay = 100U;
}
}
val = osi_readla(osi_core,
@@ -466,10 +476,10 @@ static nve32_t xpcs_uphy_lane_bring_up(struct osi_core_priv_data *osi_core,
* but added an extra count of 4 for safer side
*/
if (once == 0U) {
osi_core->osd_ops.udelay(OSI_DELAY_1US);
osi_core->osd_ops.udelay(retry_delay);
once = 1U;
} else {
osi_core->osd_ops.udelay(OSI_DELAY_4US);
osi_core->osd_ops.udelay(retry_delay);
}
}
}