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GET /api/patches/925191/?format=api
HTTP 200 OK
Allow: GET, PUT, PATCH, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "id": 925191,
    "url": "http://patchwork.ozlabs.org/api/patches/925191/?format=api",
    "web_url": "http://patchwork.ozlabs.org/project/intel-wired-lan/patch/1528138710-31848-1-git-send-email-shannon.nelson@oracle.com/",
    "project": {
        "id": 46,
        "url": "http://patchwork.ozlabs.org/api/projects/46/?format=api",
        "name": "Intel Wired Ethernet development",
        "link_name": "intel-wired-lan",
        "list_id": "intel-wired-lan.osuosl.org",
        "list_email": "intel-wired-lan@osuosl.org",
        "web_url": "",
        "scm_url": "",
        "webscm_url": "",
        "list_archive_url": "",
        "list_archive_url_format": "",
        "commit_url_format": ""
    },
    "msgid": "<1528138710-31848-1-git-send-email-shannon.nelson@oracle.com>",
    "list_archive_url": null,
    "date": "2018-06-04T18:58:30",
    "name": "[net-queue] ixgbe: check that ipsec is available on the chip",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": false,
    "hash": "a52676988378390a23ebb3b397282c81d9854669",
    "submitter": {
        "id": 70766,
        "url": "http://patchwork.ozlabs.org/api/people/70766/?format=api",
        "name": "Shannon Nelson",
        "email": "shannon.nelson@oracle.com"
    },
    "delegate": {
        "id": 68,
        "url": "http://patchwork.ozlabs.org/api/users/68/?format=api",
        "username": "jtkirshe",
        "first_name": "Jeff",
        "last_name": "Kirsher",
        "email": "jeffrey.t.kirsher@intel.com"
    },
    "mbox": "http://patchwork.ozlabs.org/project/intel-wired-lan/patch/1528138710-31848-1-git-send-email-shannon.nelson@oracle.com/mbox/",
    "series": [
        {
            "id": 48465,
            "url": "http://patchwork.ozlabs.org/api/series/48465/?format=api",
            "web_url": "http://patchwork.ozlabs.org/project/intel-wired-lan/list/?series=48465",
            "date": "2018-06-04T18:58:30",
            "name": "[net-queue] ixgbe: check that ipsec is available on the chip",
            "version": 1,
            "mbox": "http://patchwork.ozlabs.org/series/48465/mbox/"
        }
    ],
    "comments": "http://patchwork.ozlabs.org/api/patches/925191/comments/",
    "check": "pending",
    "checks": "http://patchwork.ozlabs.org/api/patches/925191/checks/",
    "tags": {},
    "related": [],
    "headers": {
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        ],
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        ],
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        "From": "Shannon Nelson <shannon.nelson@oracle.com>",
        "To": "intel-wired-lan@lists.osuosl.org, jeffrey.t.kirsher@intel.com,\n\tandre@tomt.net",
        "Date": "Mon,  4 Jun 2018 11:58:30 -0700",
        "Message-Id": "<1528138710-31848-1-git-send-email-shannon.nelson@oracle.com>",
        "X-Mailer": "git-send-email 2.7.4",
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        "Subject": "[Intel-wired-lan] [net-queue PATCH] ixgbe: check that ipsec is\n\tavailable on the chip",
        "X-BeenThere": "intel-wired-lan@osuosl.org",
        "X-Mailman-Version": "2.1.24",
        "Precedence": "list",
        "List-Id": "Intel Wired Ethernet Linux Kernel Driver Development\n\t<intel-wired-lan.osuosl.org>",
        "List-Unsubscribe": "<https://lists.osuosl.org/mailman/options/intel-wired-lan>, \n\t<mailto:intel-wired-lan-request@osuosl.org?subject=unsubscribe>",
        "List-Archive": "<http://lists.osuosl.org/pipermail/intel-wired-lan/>",
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        "List-Help": "<mailto:intel-wired-lan-request@osuosl.org?subject=help>",
        "List-Subscribe": "<https://lists.osuosl.org/mailman/listinfo/intel-wired-lan>, \n\t<mailto:intel-wired-lan-request@osuosl.org?subject=subscribe>",
        "MIME-Version": "1.0",
        "Content-Type": "text/plain; charset=\"us-ascii\"",
        "Content-Transfer-Encoding": "7bit",
        "Errors-To": "intel-wired-lan-bounces@osuosl.org",
        "Sender": "\"Intel-wired-lan\" <intel-wired-lan-bounces@osuosl.org>"
    },
    "content": "Check the writability of the IPsec configuration registers\nbefore setting up the offload.\n\nFixes: 49a94d74d948 (\"ixgbe: add ipsec engine start and stop routines\")\nReported-by: Andre Tomt <andre@tomt.net>\nCc: Alexander Duyck <alexander.h.duyck@intel.com>\nSigned-off-by: Shannon Nelson <shannon.nelson@oracle.com>\n---\n drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.c | 20 +++++++++++++++++++-\n 1 file changed, 19 insertions(+), 1 deletion(-)",
    "diff": "diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.c\nindex 344a1f2..003b53f 100644\n--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.c\n+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.c\n@@ -210,7 +210,10 @@ static void ixgbe_ipsec_stop_engine(struct ixgbe_adapter *adapter)\n \tstruct ixgbe_hw *hw = &adapter->hw;\n \tu32 reg;\n \n-\tixgbe_ipsec_stop_data(adapter);\n+\t/* stop data if it has been running */\n+\treg = IXGBE_READ_REG(hw, IXGBE_SECTXCTRL);\n+\tif (!(reg & IXGBE_SECTXCTRL_SECTX_DIS))\n+\t\tixgbe_ipsec_stop_data(adapter);\n \n \t/* disable Rx and Tx SA lookup */\n \tIXGBE_WRITE_REG(hw, IXGBE_IPSTXIDX, 0);\n@@ -966,12 +969,27 @@ void ixgbe_ipsec_rx(struct ixgbe_ring *rx_ring,\n  **/\n void ixgbe_init_ipsec_offload(struct ixgbe_adapter *adapter)\n {\n+\tstruct ixgbe_hw *hw = &adapter->hw;\n \tstruct ixgbe_ipsec *ipsec;\n \tsize_t size;\n+\tu32 reg1, reg2;\n \n \tif (adapter->hw.mac.type == ixgbe_mac_82598EB)\n \t\treturn;\n \n+\t/* verify that the ipsec offload is available by checking\n+\t * the writability of the engine DISable bit - can we clear\n+\t * the bit?  If not, don't set up ipsec.  If yes, the put\n+\t * it back and continue the setup.\n+\t */\n+\treg1 = IXGBE_READ_REG(hw, IXGBE_SECTXCTRL);\n+\treg2 = reg1 & ~IXGBE_SECTXCTRL_SECTX_DIS;\n+\tIXGBE_WRITE_REG(hw, IXGBE_SECTXCTRL, reg2);\n+\treg2 = IXGBE_READ_REG(hw, IXGBE_SECTXCTRL);\n+\tif (reg2 & IXGBE_SECTXCTRL_SECTX_DIS)\n+\t\treturn;\n+\tIXGBE_WRITE_REG(hw, IXGBE_SECTXCTRL, reg1);\n+\n \tipsec = kzalloc(sizeof(*ipsec), GFP_KERNEL);\n \tif (!ipsec)\n \t\tgoto err1;\n",
    "prefixes": [
        "net-queue"
    ]
}