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authorTomer Tayar <Tomer.Tayar@cavium.com>2017-05-21 12:10:56 +0300
committerDavid S. Miller <davem@davemloft.net>2017-05-21 19:56:53 +0300
commit3587cb87cc44ce16581dd7908d74ea91984f93b6 (patch)
tree442b02b8dbe1bcdedf588c79b192eb6429ead7b6 /drivers/net/ethernet/qlogic/qed/qed_dev.c
parent492a1d9811cbd17c833bd0af18bfaff00cd3ac85 (diff)
downloadlinux-3587cb87cc44ce16581dd7908d74ea91984f93b6.tar.xz
qed: Revise alloc/setup/free flow
Re-organize the logic that allocates and frees memory of various sub-components of the hw-function - a. No need to pass pointers to said structure as parameters; The internal logic knows exactly where to find/set the data. b. Nullify pointers after cleanup to prevent possible errors to re-entrant code. Signed-off-by: Tomer Tayar <Tomer.Tayar@cavium.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/qlogic/qed/qed_dev.c')
-rw-r--r--drivers/net/ethernet/qlogic/qed/qed_dev.c79
1 files changed, 33 insertions, 46 deletions
diff --git a/drivers/net/ethernet/qlogic/qed/qed_dev.c b/drivers/net/ethernet/qlogic/qed/qed_dev.c
index 463927f17032..3fc3b2e03ef0 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_dev.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_dev.c
@@ -161,6 +161,7 @@ void qed_resc_free(struct qed_dev *cdev)
cdev->fw_data = NULL;
kfree(cdev->reset_stats);
+ cdev->reset_stats = NULL;
for_each_hwfn(cdev, i) {
struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
@@ -168,18 +169,18 @@ void qed_resc_free(struct qed_dev *cdev)
qed_cxt_mngr_free(p_hwfn);
qed_qm_info_free(p_hwfn);
qed_spq_free(p_hwfn);
- qed_eq_free(p_hwfn, p_hwfn->p_eq);
- qed_consq_free(p_hwfn, p_hwfn->p_consq);
+ qed_eq_free(p_hwfn);
+ qed_consq_free(p_hwfn);
qed_int_free(p_hwfn);
#ifdef CONFIG_QED_LL2
- qed_ll2_free(p_hwfn, p_hwfn->p_ll2_info);
+ qed_ll2_free(p_hwfn);
#endif
if (p_hwfn->hw_info.personality == QED_PCI_FCOE)
- qed_fcoe_free(p_hwfn, p_hwfn->p_fcoe_info);
+ qed_fcoe_free(p_hwfn);
if (p_hwfn->hw_info.personality == QED_PCI_ISCSI) {
- qed_iscsi_free(p_hwfn, p_hwfn->p_iscsi_info);
- qed_ooo_free(p_hwfn, p_hwfn->p_ooo_info);
+ qed_iscsi_free(p_hwfn);
+ qed_ooo_free(p_hwfn);
}
qed_iov_free(p_hwfn);
qed_dmae_info_free(p_hwfn);
@@ -843,15 +844,7 @@ alloc_err:
int qed_resc_alloc(struct qed_dev *cdev)
{
- struct qed_iscsi_info *p_iscsi_info;
- struct qed_fcoe_info *p_fcoe_info;
- struct qed_ooo_info *p_ooo_info;
-#ifdef CONFIG_QED_LL2
- struct qed_ll2_info *p_ll2_info;
-#endif
u32 rdma_tasks, excess_tasks;
- struct qed_consq *p_consq;
- struct qed_eq *p_eq;
u32 line_count;
int i, rc = 0;
@@ -956,45 +949,38 @@ int qed_resc_alloc(struct qed_dev *cdev)
DP_ERR(p_hwfn,
"Cannot allocate 0x%x EQ elements. The maximum of a u16 chain is 0x%x\n",
n_eqes, 0xFFFF);
- rc = -EINVAL;
- goto alloc_err;
+ goto alloc_no_mem;
}
- p_eq = qed_eq_alloc(p_hwfn, (u16) n_eqes);
- if (!p_eq)
- goto alloc_no_mem;
- p_hwfn->p_eq = p_eq;
+ rc = qed_eq_alloc(p_hwfn, (u16) n_eqes);
+ if (rc)
+ goto alloc_err;
- p_consq = qed_consq_alloc(p_hwfn);
- if (!p_consq)
- goto alloc_no_mem;
- p_hwfn->p_consq = p_consq;
+ rc = qed_consq_alloc(p_hwfn);
+ if (rc)
+ goto alloc_err;
#ifdef CONFIG_QED_LL2
if (p_hwfn->using_ll2) {
- p_ll2_info = qed_ll2_alloc(p_hwfn);
- if (!p_ll2_info)
- goto alloc_no_mem;
- p_hwfn->p_ll2_info = p_ll2_info;
+ rc = qed_ll2_alloc(p_hwfn);
+ if (rc)
+ goto alloc_err;
}
#endif
if (p_hwfn->hw_info.personality == QED_PCI_FCOE) {
- p_fcoe_info = qed_fcoe_alloc(p_hwfn);
- if (!p_fcoe_info)
- goto alloc_no_mem;
- p_hwfn->p_fcoe_info = p_fcoe_info;
+ rc = qed_fcoe_alloc(p_hwfn);
+ if (rc)
+ goto alloc_err;
}
if (p_hwfn->hw_info.personality == QED_PCI_ISCSI) {
- p_iscsi_info = qed_iscsi_alloc(p_hwfn);
- if (!p_iscsi_info)
- goto alloc_no_mem;
- p_hwfn->p_iscsi_info = p_iscsi_info;
- p_ooo_info = qed_ooo_alloc(p_hwfn);
- if (!p_ooo_info)
- goto alloc_no_mem;
- p_hwfn->p_ooo_info = p_ooo_info;
+ rc = qed_iscsi_alloc(p_hwfn);
+ if (rc)
+ goto alloc_err;
+ rc = qed_ooo_alloc(p_hwfn);
+ if (rc)
+ goto alloc_err;
}
/* DMA info initialization */
@@ -1033,8 +1019,8 @@ void qed_resc_setup(struct qed_dev *cdev)
qed_cxt_mngr_setup(p_hwfn);
qed_spq_setup(p_hwfn);
- qed_eq_setup(p_hwfn, p_hwfn->p_eq);
- qed_consq_setup(p_hwfn, p_hwfn->p_consq);
+ qed_eq_setup(p_hwfn);
+ qed_consq_setup(p_hwfn);
/* Read shadow of current MFW mailbox */
qed_mcp_read_mb(p_hwfn, p_hwfn->p_main_ptt);
@@ -1047,14 +1033,14 @@ void qed_resc_setup(struct qed_dev *cdev)
qed_iov_setup(p_hwfn, p_hwfn->p_main_ptt);
#ifdef CONFIG_QED_LL2
if (p_hwfn->using_ll2)
- qed_ll2_setup(p_hwfn, p_hwfn->p_ll2_info);
+ qed_ll2_setup(p_hwfn);
#endif
if (p_hwfn->hw_info.personality == QED_PCI_FCOE)
- qed_fcoe_setup(p_hwfn, p_hwfn->p_fcoe_info);
+ qed_fcoe_setup(p_hwfn);
if (p_hwfn->hw_info.personality == QED_PCI_ISCSI) {
- qed_iscsi_setup(p_hwfn, p_hwfn->p_iscsi_info);
- qed_ooo_setup(p_hwfn, p_hwfn->p_ooo_info);
+ qed_iscsi_setup(p_hwfn);
+ qed_ooo_setup(p_hwfn);
}
}
}
@@ -1968,6 +1954,7 @@ static void qed_hw_hwfn_free(struct qed_hwfn *p_hwfn)
{
qed_ptt_pool_free(p_hwfn);
kfree(p_hwfn->hw_info.p_igu_info);
+ p_hwfn->hw_info.p_igu_info = NULL;
}
/* Setup bar access */