iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

qed: Set the doorbell address correctly

Browse Source 
[ Upstream commit 8366d520019f366fabd6c7a13032bdcd837e18d4 ]

In 100g mode the doorbell bar is united for both engines. Set
the correct offset in the hwfn so that the doorbell returned
for RoCE is in the affined hwfn.

Signed-off-by: Ariel Elior <ariel.elior@marvell.com>
Signed-off-by: Denis Bolotin <denis.bolotin@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Michal Kalderon 2019-05-26 15:22:25 +03:00 committed by Greg Kroah-Hartman
parent e703ea55e7
commit d11b937a51
2 changed files with 19 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
drivers/net/ethernet/qlogic/qed/qed_dev.c
View File

@ -2947,6 +2947,7 @@ static int qed_get_dev_info(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
static int qed_hw_prepare_single(struct qed_hwfn *p_hwfn,
void __iomem *p_regview,
void __iomem *p_doorbells,
u64 db_phys_addr,
enum qed_pci_personality personality)
{
int rc = 0;
@ -2954,6 +2955,7 @@ static int qed_hw_prepare_single(struct qed_hwfn *p_hwfn,
/* Split PCI bars evenly between hwfns */
p_hwfn->regview = p_regview;
p_hwfn->doorbells = p_doorbells;
p_hwfn->db_phys_addr = db_phys_addr;
if (IS_VF(p_hwfn->cdev))
return qed_vf_hw_prepare(p_hwfn);
@ -3036,7 +3038,9 @@ int qed_hw_prepare(struct qed_dev *cdev,
/* Initialize the first hwfn - will learn number of hwfns */
rc = qed_hw_prepare_single(p_hwfn,
cdev->regview,
cdev->doorbells, personality);
cdev->doorbells,
cdev->db_phys_addr,
personality);
if (rc)
return rc;
@ -3045,22 +3049,25 @@ int qed_hw_prepare(struct qed_dev *cdev,
/* Initialize the rest of the hwfns */
if (cdev->num_hwfns > 1) {
void __iomem *p_regview, *p_doorbell;
u8 __iomem *addr;
u64 db_phys_addr;
u32 offset;
/* adjust bar offset for second engine */
addr = cdev->regview +
qed_hw_bar_size(p_hwfn, p_hwfn->p_main_ptt,
BAR_ID_0) / 2;
p_regview = addr;
offset = qed_hw_bar_size(p_hwfn, p_hwfn->p_main_ptt,
BAR_ID_0) / 2;
p_regview = cdev->regview + offset;
addr = cdev->doorbells +
qed_hw_bar_size(p_hwfn, p_hwfn->p_main_ptt,
BAR_ID_1) / 2;
p_doorbell = addr;
offset = qed_hw_bar_size(p_hwfn, p_hwfn->p_main_ptt,
BAR_ID_1) / 2;
p_doorbell = cdev->doorbells + offset;
db_phys_addr = cdev->db_phys_addr + offset;
/* prepare second hw function */
rc = qed_hw_prepare_single(&cdev->hwfns[1], p_regview,
p_doorbell, personality);
p_doorbell, db_phys_addr,
personality);
/* in case of error, need to free the previously
* initiliazed hwfn 0.

2
drivers/net/ethernet/qlogic/qed/qed_rdma.c
View File

@ -753,7 +753,7 @@ static int qed_rdma_add_user(void *rdma_cxt,
dpi_start_offset +
((out_params->dpi) * p_hwfn->dpi_size));
out_params->dpi_phys_addr = p_hwfn->cdev->db_phys_addr +
out_params->dpi_phys_addr = p_hwfn->db_phys_addr +
dpi_start_offset +
((out_params->dpi) * p_hwfn->dpi_size);