| Message ID | 20230608180618.574171-2-david.m.ertman@intel.com (mailing list archive) |
|---|---|
| State | Superseded |
| Delegated to: | Netdev Maintainers |
| Headers | show |
| Series | Implement support for SRIOV + LAG | expand |
> The ice_alloc_lan_q_ctx function allocates the queue context array for a > given traffic class. This function uses devm_kcalloc which will > zero-allocate the structure. Thus, prior to any queue being setup by > ice_ena_vsi_txq, the q_ctx structure will have a q_handle of 0 and a q_teid > of 0. These are potentially valid values. > > Modify the ice_alloc_lan_q_ctx function to initialize every member of the > q_ctx array to have invalid values. Modify ice_dis_vsi_txq to ensure that > it assigns q_teid to an invalid value when it assigns q_handle to the > invalid value as well. > > This will allow other code to check whether the queue context is currently > valid before operating on it. > > Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> > Signed-off-by: Dave Ertman <david.m.ertman@intel.com> Reviewed-by: Daniel Machon <daniel.machon@microchip.com>
diff --git a/drivers/net/ethernet/intel/ice/ice_common.c b/drivers/net/ethernet/intel/ice/ice_common.c index 6acb40f3c202..ebdaf8dc679c 100644 --- a/drivers/net/ethernet/intel/ice/ice_common.c +++ b/drivers/net/ethernet/intel/ice/ice_common.c @@ -4700,6 +4700,7 @@ ice_dis_vsi_txq(struct ice_port_info *pi, u16 vsi_handle, u8 tc, u8 num_queues, break; ice_free_sched_node(pi, node); q_ctx->q_handle = ICE_INVAL_Q_HANDLE; + q_ctx->q_teid = ICE_INVAL_TEID; } mutex_unlock(&pi->sched_lock); kfree(qg_list); diff --git a/drivers/net/ethernet/intel/ice/ice_sched.c b/drivers/net/ethernet/intel/ice/ice_sched.c index b664d60fd037..79a8972873f1 100644 --- a/drivers/net/ethernet/intel/ice/ice_sched.c +++ b/drivers/net/ethernet/intel/ice/ice_sched.c @@ -569,18 +569,24 @@ ice_alloc_lan_q_ctx(struct ice_hw *hw, u16 vsi_handle, u8 tc, u16 new_numqs) { struct ice_vsi_ctx *vsi_ctx; struct ice_q_ctx *q_ctx; + u16 idx; vsi_ctx = ice_get_vsi_ctx(hw, vsi_handle); if (!vsi_ctx) return -EINVAL; /* allocate LAN queue contexts */ if (!vsi_ctx->lan_q_ctx[tc]) { - vsi_ctx->lan_q_ctx[tc] = devm_kcalloc(ice_hw_to_dev(hw), - new_numqs, - sizeof(*q_ctx), - GFP_KERNEL); - if (!vsi_ctx->lan_q_ctx[tc]) + q_ctx = devm_kcalloc(ice_hw_to_dev(hw), new_numqs, + sizeof(*q_ctx), GFP_KERNEL); + if (!q_ctx) return -ENOMEM; + + for (idx = 0; idx < new_numqs; idx++) { + q_ctx[idx].q_handle = ICE_INVAL_Q_HANDLE; + q_ctx[idx].q_teid = ICE_INVAL_TEID; + } + + vsi_ctx->lan_q_ctx[tc] = q_ctx; vsi_ctx->num_lan_q_entries[tc] = new_numqs; return 0; } @@ -592,9 +598,16 @@ ice_alloc_lan_q_ctx(struct ice_hw *hw, u16 vsi_handle, u8 tc, u16 new_numqs) sizeof(*q_ctx), GFP_KERNEL); if (!q_ctx) return -ENOMEM; + memcpy(q_ctx, vsi_ctx->lan_q_ctx[tc], prev_num * sizeof(*q_ctx)); devm_kfree(ice_hw_to_dev(hw), vsi_ctx->lan_q_ctx[tc]); + + for (idx = prev_num; idx < new_numqs; idx++) { + q_ctx[idx].q_handle = ICE_INVAL_Q_HANDLE; + q_ctx[idx].q_teid = ICE_INVAL_TEID; + } + vsi_ctx->lan_q_ctx[tc] = q_ctx; vsi_ctx->num_lan_q_entries[tc] = new_numqs; }