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Message-Id: <20230203211456.705649-2-anthony.l.nguyen@intel.com>
Date: Fri, 3 Feb 2023 13:14:47 -0800
From: Tony Nguyen <anthony.l.nguyen@...el.com>
To: davem@...emloft.net, kuba@...nel.org, pabeni@...hat.com,
edumazet@...gle.com
Cc: Michal Swiatkowski <michal.swiatkowski@...ux.intel.com>,
netdev@...r.kernel.org, anthony.l.nguyen@...el.com,
Dave Ertman <david.m.ertman@...el.com>
Subject: [PATCH net-next 01/10] ice: move RDMA init to ice_idc.c
From: Michal Swiatkowski <michal.swiatkowski@...ux.intel.com>
Simplify probe flow by moving all RDMA related code to ice_init_rdma().
Unroll irq allocation if RDMA initialization fails.
Implement ice_deinit_rdma() and use it in remove flow.
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@...ux.intel.com>
Acked-by: Dave Ertman <david.m.ertman@...el.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@...el.com>
---
drivers/net/ethernet/intel/ice/ice.h | 1 +
drivers/net/ethernet/intel/ice/ice_idc.c | 52 ++++++++++++++++++++++-
drivers/net/ethernet/intel/ice/ice_main.c | 29 +++----------
3 files changed, 57 insertions(+), 25 deletions(-)
diff --git a/drivers/net/ethernet/intel/ice/ice.h b/drivers/net/ethernet/intel/ice/ice.h
index 3d26ff4122e0..e8558c044155 100644
--- a/drivers/net/ethernet/intel/ice/ice.h
+++ b/drivers/net/ethernet/intel/ice/ice.h
@@ -907,6 +907,7 @@ void ice_print_link_msg(struct ice_vsi *vsi, bool isup);
int ice_plug_aux_dev(struct ice_pf *pf);
void ice_unplug_aux_dev(struct ice_pf *pf);
int ice_init_rdma(struct ice_pf *pf);
+void ice_deinit_rdma(struct ice_pf *pf);
const char *ice_aq_str(enum ice_aq_err aq_err);
bool ice_is_wol_supported(struct ice_hw *hw);
void ice_fdir_del_all_fltrs(struct ice_vsi *vsi);
diff --git a/drivers/net/ethernet/intel/ice/ice_idc.c b/drivers/net/ethernet/intel/ice/ice_idc.c
index 895c32bcc8b5..579d2a433ea1 100644
--- a/drivers/net/ethernet/intel/ice/ice_idc.c
+++ b/drivers/net/ethernet/intel/ice/ice_idc.c
@@ -6,6 +6,8 @@
#include "ice_lib.h"
#include "ice_dcb_lib.h"
+static DEFINE_IDA(ice_aux_ida);
+
/**
* ice_get_auxiliary_drv - retrieve iidc_auxiliary_drv struct
* @pf: pointer to PF struct
@@ -245,6 +247,17 @@ static int ice_reserve_rdma_qvector(struct ice_pf *pf)
return 0;
}
+/**
+ * ice_free_rdma_qvector - free vector resources reserved for RDMA driver
+ * @pf: board private structure to initialize
+ */
+static void ice_free_rdma_qvector(struct ice_pf *pf)
+{
+ pf->num_avail_sw_msix -= pf->num_rdma_msix;
+ ice_free_res(pf->irq_tracker, pf->rdma_base_vector,
+ ICE_RES_RDMA_VEC_ID);
+}
+
/**
* ice_adev_release - function to be mapped to AUX dev's release op
* @dev: pointer to device to free
@@ -331,12 +344,47 @@ int ice_init_rdma(struct ice_pf *pf)
struct device *dev = &pf->pdev->dev;
int ret;
+ if (!ice_is_rdma_ena(pf)) {
+ dev_warn(dev, "RDMA is not supported on this device\n");
+ return 0;
+ }
+
+ pf->aux_idx = ida_alloc(&ice_aux_ida, GFP_KERNEL);
+ if (pf->aux_idx < 0) {
+ dev_err(dev, "Failed to allocate device ID for AUX driver\n");
+ return -ENOMEM;
+ }
+
/* Reserve vector resources */
ret = ice_reserve_rdma_qvector(pf);
if (ret < 0) {
dev_err(dev, "failed to reserve vectors for RDMA\n");
- return ret;
+ goto err_reserve_rdma_qvector;
}
pf->rdma_mode |= IIDC_RDMA_PROTOCOL_ROCEV2;
- return ice_plug_aux_dev(pf);
+ ret = ice_plug_aux_dev(pf);
+ if (ret)
+ goto err_plug_aux_dev;
+ return 0;
+
+err_plug_aux_dev:
+ ice_free_rdma_qvector(pf);
+err_reserve_rdma_qvector:
+ pf->adev = NULL;
+ ida_free(&ice_aux_ida, pf->aux_idx);
+ return ret;
+}
+
+/**
+ * ice_deinit_rdma - deinitialize RDMA on PF
+ * @pf: ptr to ice_pf
+ */
+void ice_deinit_rdma(struct ice_pf *pf)
+{
+ if (!ice_is_rdma_ena(pf))
+ return;
+
+ ice_unplug_aux_dev(pf);
+ ice_free_rdma_qvector(pf);
+ ida_free(&ice_aux_ida, pf->aux_idx);
}
diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c
index 22b8ad058286..384679042bfa 100644
--- a/drivers/net/ethernet/intel/ice/ice_main.c
+++ b/drivers/net/ethernet/intel/ice/ice_main.c
@@ -44,7 +44,6 @@ MODULE_PARM_DESC(debug, "netif level (0=none,...,16=all), hw debug_mask (0x8XXXX
MODULE_PARM_DESC(debug, "netif level (0=none,...,16=all)");
#endif /* !CONFIG_DYNAMIC_DEBUG */
-static DEFINE_IDA(ice_aux_ida);
DEFINE_STATIC_KEY_FALSE(ice_xdp_locking_key);
EXPORT_SYMBOL(ice_xdp_locking_key);
@@ -4932,30 +4931,16 @@ ice_probe(struct pci_dev *pdev, const struct pci_device_id __always_unused *ent)
/* ready to go, so clear down state bit */
clear_bit(ICE_DOWN, pf->state);
- if (ice_is_rdma_ena(pf)) {
- pf->aux_idx = ida_alloc(&ice_aux_ida, GFP_KERNEL);
- if (pf->aux_idx < 0) {
- dev_err(dev, "Failed to allocate device ID for AUX driver\n");
- err = -ENOMEM;
- goto err_devlink_reg_param;
- }
-
- err = ice_init_rdma(pf);
- if (err) {
- dev_err(dev, "Failed to initialize RDMA: %d\n", err);
- err = -EIO;
- goto err_init_aux_unroll;
- }
- } else {
- dev_warn(dev, "RDMA is not supported on this device\n");
+ err = ice_init_rdma(pf);
+ if (err) {
+ dev_err(dev, "Failed to initialize RDMA: %d\n", err);
+ err = -EIO;
+ goto err_devlink_reg_param;
}
ice_devlink_register(pf);
return 0;
-err_init_aux_unroll:
- pf->adev = NULL;
- ida_free(&ice_aux_ida, pf->aux_idx);
err_devlink_reg_param:
ice_devlink_unregister_params(pf);
err_netdev_reg:
@@ -5075,9 +5060,7 @@ static void ice_remove(struct pci_dev *pdev)
ice_service_task_stop(pf);
ice_aq_cancel_waiting_tasks(pf);
- ice_unplug_aux_dev(pf);
- if (pf->aux_idx >= 0)
- ida_free(&ice_aux_ida, pf->aux_idx);
+ ice_deinit_rdma(pf);
ice_devlink_unregister_params(pf);
set_bit(ICE_DOWN, pf->state);
--
2.38.1
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